rich_location: add convenience overloads for adding fix-it hints

[gcc.git] / libcpp / ChangeLog

2016-08-30  David Malcolm  <dmalcolm@redhat.com>

        * include/line-map.h (rich_location::add_fixit_insert): Add
        comments.  Add overload omitting the source_location param.
        (rich_location::add_fixit_remove): Add comments.  Add overloads
        omitting the range, and accepting a source_location.
        (rich_location::add_fixit_replace): Likewise.
        * line-map.c (rich_location::add_fixit_insert): Add comments.  Add
        overload omitting the source_location param.
        (rich_location::add_fixit_remove): Add comments.  Add overloads
        omitting the range, and accepting a source_location.
        (rich_location::add_fixit_replace): Likewise.

2016-08-26  David Malcolm  <dmalcolm@redhat.com>

        * include/line-map.h (get_pure_location): New decl.
        * line-map.c (get_pure_location): Move here, from gcc/input.c, adding
        a line_maps * param.
        (rich_location::add_fixit_insert): Call get_pure_location on "where".
        (rich_location::add_fixit_replace): Call get_pure_location on the
        end-points.

2016-08-26  David Malcolm  <dmalcolm@redhat.com>

        * include/line-map.h (rich_location): Eliminate unimplemented
        constructor based on source_range.
        (rich_location::get_last_fixit_hint): New method.
        (rich_location::reject_impossible_fixit): New method.
        (rich_location): Add fields m_line_table and
        m_seen_impossible_fixit.
        (fixit_hint::maybe_append_replace): New pure virtual function.
        (fixit_insert::maybe_append_replace): New function.
        (fixit_replace::maybe_append_replace): New function.
        * line-map.c (rich_location::rich_location): Initialize
        m_line_table and m_seen_impossible_fixit.
        (rich_location::add_fixit_insert): Call
        reject_impossible_fixit and bail out if true.
        (column_before_p): New function.
        (rich_location::add_fixit_replace): Call reject_impossible_fixit
        and bail out if true.  Attempt to consolidate with neighboring
        fixits.
        (rich_location::get_last_fixit_hint): New method.
        (rich_location::reject_impossible_fixit): New method.
        (fixit_insert::maybe_append_replace): New method.
        (fixit_replace::maybe_append_replace): New method.

2016-08-23  David Malcolm  <dmalcolm@redhat.com>

        * include/line-map.h (source_range::from_locations): New method.

2016-08-19  David Malcolm  <dmalcolm@redhat.com>

        * include/line-map.h (fixit_hint::kind): Delete REPLACE.
        (class fixit_remove): Delete.
        * line-map.c (rich_location::add_fixit_remove): Reimplement
        by calling add_fixit_replace with an empty string.
        (fixit_remove::fixit_remove): Delete.
        (fixit_remove::affects_line_p): Delete.

2016-08-19  Joseph Myers  <joseph@codesourcery.com>

        PR c/32187
        * include/cpplib.h (CPP_N_FLOATN, CPP_N_FLOATNX)
        (CPP_N_WIDTH_FLOATN_NX, CPP_FLOATN_SHIFT, CPP_FLOATN_MAX): New
        macros.
        * expr.c (interpret_float_suffix): Handle fN, fNx, FN and FNx
        suffixes.

2016-08-19  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * expr.c (eval_token): Append "evaluates to 0" to Wundef diagnostic.

2016-08-18  David Malcolm  <dmalcolm@redhat.com>

        * directives.c (directive_names): New array.
        (_cpp_handle_directive): Offer spelling suggestions for misspelled
        directives.
        * errors.c (cpp_diagnostic_at_richloc): New function.
        (cpp_error_at_richloc): New function.
        * include/cpplib.h (struct cpp_callbacks): Add field
        "get_suggestion".
        (cpp_error_at_richloc): New decl.

2016-08-18  Marek Polacek  <polacek@redhat.com>

        PR c/7652
        * pch.c (write_macdef): Add CPP_FALLTHRU.

2016-08-12  Marek Polacek  <polacek@redhat.com>

        PR c/7652
        * lex.c (search_line_fast): Add FALLTHRU.
        (_cpp_lex_direct): Likewise.
        (cpp_token_val_index): Adjust fall through comment.
        * macro.c (parse_params): Add FALLTHRU.
        * pch.c (count_defs): Adjust fall through comment.
        (write_defs): Likewise.

2016-08-06  David Malcolm  <dmalcolm@redhat.com>

        PR bootstrap/72823
        * charset.c (_cpp_valid_ucn): Replace overzealous assert with one
        that allows for char_range to be non-NULL when loc_reader is NULL.

2016-08-05  David Malcolm  <dmalcolm@redhat.com>

        * charset.c (cpp_substring_ranges::cpp_substring_ranges): New
        constructor.
        (cpp_substring_ranges::~cpp_substring_ranges): New destructor.
        (cpp_substring_ranges::add_range): New method.
        (cpp_substring_ranges::add_n_ranges): New method.
        (_cpp_valid_ucn): Add "char_range" and "loc_reader" params; if
        they are non-NULL, read position information from *loc_reader
        and update char_range->m_finish accordingly.
        (convert_ucn): Add "char_range", "loc_reader", and "ranges"
        params.  If loc_reader is non-NULL, read location information from
        it, and update *ranges accordingly, using char_range.
        Conditionalize the conversion into tbuf on tbuf being non-NULL.
        (convert_hex): Likewise, conditionalizing the call to
        emit_numeric_escape on tbuf.
        (convert_oct): Likewise.
        (convert_escape): Add params "loc_reader" and "ranges".  If
        loc_reader is non-NULL, read location information from it, and
        update *ranges accordingly.  Conditionalize the conversion into
        tbuf on tbuf being non-NULL.
        (cpp_interpret_string): Rename to...
        (cpp_interpret_string_1): ...this, adding params "loc_readers" and
        "out".  Use "to" to conditionalize the initialization and usage of
        "tbuf", such as running the converter.  If "loc_readers" is
        non-NULL, use the instances within it, reading location
        information from them, and passing them to convert_escape; likewise
        write to "out" if loc_readers is non-NULL.  Check for leading
        quote and issue an error if it is not present.  Update boundary
        check from "== limit" to ">= limit" to protect against erroneous
        location values to calls that are not parsing string literals.
        (cpp_interpret_string): Reimplement in terms to
        cpp_interpret_string_1.
        (noop_error_cb): New function.
        (cpp_interpret_string_ranges): New function.
        (cpp_string_location_reader::cpp_string_location_reader): New
        constructor.
        (cpp_string_location_reader::get_next): New method.
        * include/cpplib.h (class cpp_string_location_reader): New class.
        (class cpp_substring_ranges): New class.
        (cpp_interpret_string_ranges): New prototype.
        * internal.h (_cpp_valid_ucn): Add params "char_range" and
        "loc_reader".
        * lex.c (forms_identifier_p): Pass NULL for new params to
        _cpp_valid_ucn.

2016-08-01  Andreas Schwab  <schwab@suse.de>

        * include/cpplib.h: Fix comment typo.

2016-07-27  David Malcolm  <dmalcolm@redhat.com>

        * include/line-map.h (source_location): Fix line numbers in
        comment.

2016-07-11  David Malcolm  <dmalcolm@redhat.com>

        * include/line-map.h (LINE_MAP_MAX_LOCATION_WITH_PACKED_RANGES):
        Move here from line-map.c.
        (LINE_MAP_MAX_LOCATION_WITH_COLS): Likewise.
        * line-map.c (LINE_MAP_MAX_LOCATION_WITH_PACKED_RANGES): Move from
        here to line-map.h.
        (LINE_MAP_MAX_LOCATION_WITH_COLS): Likewise.

2016-06-22  David Malcolm  <dmalcolm@redhat.com>

        * directives.c (do_include_common): Pass on "location" to
        _cpp_stack_include.
        * errors.c (cpp_diagnostic): Reimplement in terms of...
        (cpp_diagnostic_at): New function.
        (cpp_error_at): New function.
        (cpp_errno_filename): Add "loc" param and use it by using
        cpp_error_at rather than cpp_error.
        * files.c (find_file_in_dir): Add "loc" param and pass it to
        open_file_failed.
        (_cpp_find_file): Add "loc" param.  Use it to convert calls to
        cpp_error to cpp_error_at, and pass it to find_file_in_dir and
        open_file_failed.
        (read_file_guts): Add "loc" param.  Use it to convert calls to
        cpp_error to cpp_error_at.  Pass it to cpp_errno_filename.
        (read_file): Add "loc" param.  Pass it to open_file_failed and
        read_file_guts.
        (should_stack_file): Add "loc" param.  Pass it to read_file.
        (_cpp_stack_file): Add "loc" param.  Pass it to should_stack_file.
        (_cpp_stack_include): Add "loc" param.  Pass it to
        _cpp_find_file and _cpp_stack_file.
        (open_file_failed): Add "loc" param.  Pass it to
        cpp_errno_filename.
        (_cpp_fake_include): Add 0 as a source_location in call to
        _cpp_find_file.
        (_cpp_compare_file_date): Likewise.
        (cpp_push_include): Likewise for call to _cpp_stack_include.
        (cpp_push_default_include): Likewise.
        (_cpp_save_file_entries): Likewise for call to open_file_failed.
        (_cpp_has_header): Likewise for call to _cpp_find_file.
        * include/cpplib.h (cpp_errno_filename): Add source_location
        param.
        (cpp_error_at): New declaration.
        * init.c (cpp_read_main_file): Add 0 as a source_location in calls
        to _cpp_find_file and _cpp_stack_file.
        * internal.h (_cpp_find_file): Add source_location param.
        (_cpp_stack_file): Likewise.
        (_cpp_stack_include): Likewise.

2016-06-22  David Malcolm  <dmalcolm@redhat.com>

        * include/line-map.h (fixit_hint::get_start_loc): New pure virtual
        function.
        (fixit_hint::maybe_get_end_loc): Likewise.
        (fixit_insert::get_start_loc): New function, implementing
        fixit_hint::get_start_loc.
        (fixit_insert::maybe_get_end_loc): New function, implementing
        fixit_hint::maybe_get_end_loc.
        (fixit_remove::get_start_loc): New function, implementing
        fixit_hint::get_start_loc.
        (fixit_remove::maybe_get_end_loc): New function, implementing
        fixit_hint::maybe_get_end_loc.
        (fixit_replace::get_start_loc): New function, implementing
        fixit_hint::get_start_loc.
        (fixit_replace::maybe_get_end_loc): New function, implementing
        fixit_hint::maybe_get_end_loc.

2016-06-21  John David Anglin  <danglin@gcc.gnu.org>

        * line-map.c (location_adhoc_data_update): Use int64_t instead of
        long long.
        (get_combined_adhoc_loc): Likewise.

2016-06-01  Eduard Sanou  <dhole@openmailbox.org>

        * include/cpplib.h (cpp_callbacks): Add get_source_date_epoch
        callback.
        * include/cpplib.h (cpp_init_source_date_epoch): Remove prototype.
        * init.c (cpp_init_source_date_epoch): Remove function.
        * init.c (cpp_create_reader): Initialize pfile->source_date_epoch.
        * internal.h (cpp_reader): Extend comment about source_date_epoch.
        * macro.c (_cpp_builtin_macro_text): Use get_source_date_epoch
        callback only once, read pfile->source_date_epoch on future passes.
        Check that get_source_date_epoch callback is not NULL.

2016-05-20  Martin Liska  <mliska@suse.cz>

        * config.in: Regenerated.
        * configure: Likewise.
        * configure.ac: Handle --enable-valgrind-annotations.
        * lex.c (new_buff): Use ENABLE_VALGRIND_ANNOTATIONS instead
        of ENABLE_VALGRIND_CHECKING.
        (_cpp_free_buff): Likewise.

2016-04-28  Eduard Sanou  <dhole@openmailbox.org>
            Matthias Klose  <doko@debian.org>

        * include/cpplib.h (cpp_init_source_date_epoch): Prototype.
        * init.c (cpp_init_source_date_epoch): New function.
        * internal.h: Added source_date_epoch variable to struct
        cpp_reader to store a reproducible date.
        * macro.c (_cpp_builtin_macro_text): Set pfile->date timestamp from 
        pfile->source_date_epoch instead of localtime if source_date_epoch is 
        set, to be used for __DATE__ and __TIME__ macros to help reproducible 
        builds.

2016-04-13  Bernd Schmidt  <bschmidt@redhat.com>

        Patch from Roger Orr <rogero@howzatt.demon.co.uk>
        PR preprocessor/69650
        * directives.c (do_linemarker): Reread map after calling
        cpp_get_token.

2016-04-06  Richard Henderson  <rth@redhat.com>

        PR preprocessor/61817
        PR preprocessor/69391
        * internal.h (_cpp_builtin_macro_text): Update decl.
        * macro.c (_cpp_builtin_macro_text): Accept location for __LINE__.
        (builtin_macro): Accept a second location for __LINE__.
        (enter_macro_context): Compute both virtual and real expansion
        locations for the macro.

2016-03-25  Bernd Schmidt  <bschmidt@redhat.com>

        PR lto/69650
        * directives.c (do_linemarker): Test for file left but not entered
        here.
        * line-map.c (linemap_add): Not here.

2016-03-21  Jakub Jelinek  <jakub@redhat.com>

        PR target/70296
        * include/cpplib.h (cpp_fun_like_macro_p): New prototype.
        * macro.c (cpp_fun_like_macro_p): New function.

2016-03-15  Richard Henderson  <rth@redhat.com>

        * line-map.c (new_linemap): Make alloc_size a size_t.

2016-03-14  Jason Merrill  <jason@redhat.com>

        * expr.c (cpp_classify_number): Hex floats are new in C++1z.
        * init.c (lang_defaults): Likewise.

2016-03-09  David Malcolm  <dmalcolm@redhat.com>

        PR c/68473
        PR c++/70105
        * line-map.c (linemap_macro_map_loc_unwind_toward_spelling): Move
        decl...
        * include/line-map.h
        (linemap_macro_map_loc_unwind_toward_spelling): ...here,
        converting from static to extern.

2016-03-09  David Malcolm  <dmalcolm@redhat.com>

        PR c/68473
        PR c++/70105
        * include/line-map.h (source_range::debug): Delete.
        (struct location_range): Update comment.  Replace
        expanded_location fields "m_start", "m_finish", and "m_caret" with
        a source_location field: "m_loc".
        (class rich_location): Reword comment.
        (rich_location::get_loc): Reimplement in terms of a new overloaded
        variant which takes an unsigned int.
        (rich_location::get_loc_addr): Delete.
        (rich_location::add_range): Drop params "start" and "finish" in
        favor of param "loc".  Drop overloaded variants taking a
        source_range or location_range *.
        (rich_location::lazily_expand_location): Delete in favor of...
        (rich_location::get_expanded_location): New decl.
        (rich_location::m_loc): Delete field.
        (rich_location::m_column_override): New field.
        * line-map.c (rich_location::rich_location):  Drop name of
        line_maps * param.  Update initializations for deletion of field
        "m_loc" and addition of field "m_column_override".  Reimplement
        body as a call to add_range.  Delete overloaded variant taking a
        source_range.
        (rich_location::get_loc): New function.
        (rich_location::lazily_expand_location): Delete in favor of...
        (rich_location::get_expanded_location): New function.
        (rich_location::override_column): Reimplement.
        (rich_location::add_range): Drop params "start" and "finish" in
        favor of param "loc".  Eliminate location expansion in favor of
        simply storing loc.  Drop overloaded variants taking a
        source_range or location_range *.
        (rich_location::set_range): Eliminate location expansion.

2016-02-29  David Malcolm  <dmalcolm@redhat.com>

        PR preprocessor/69985
        (linemap_position_for_loc_and_offset): Rename param from "offset"
        to "column_offset".  Right-shift the column_offset by m_range_bits
        of the pertinent ordinary map whenever offsetting a
        source_location.  For clarity, offset the column by the column
        offset, rather than the other way around.

2016-02-23  David Malcolm  <dmalcolm@redhat.com>

        PR preprocessor/69126
        PR preprocessor/69543
        * line-map.c (linemap_compare_locations): At the function top,
        replace inlined bodies of get_location_from_adhoc_loc with calls
        to get_location_from_adhoc_loc.  Add a pair of calls to
        get_location_from_adhoc_loc at the bottom of the function, to
        avoid meaningless comparisons of ad-hoc and non-ad-hoc locations.

2016-02-08  David Malcolm  <dmalcolm@redhat.com>

        PR preprocessor/69664
        * errors.c (cpp_diagnostic_with_line): Only call
        rich_location::override_column if the column is non-zero.
        * line-map.c (rich_location::override_column): Update columns
        within m_ranges[0].  Add assertions to verify that doing so is
        sane.

2016-02-05  Jakub Jelinek  <jakub@redhat.com>

        PR c++/69628
        * charset.c (cpp_interpret_charconst): Clear *PCHARS_SEEN
        and *UNSIGNEDP if bailing out early due to errors.

2016-01-28  Jakub Jelinek  <jakub@redhat.com>

        PR pch/68176
        * files.c (_cpp_find_file): Set file->implicit_preinclude even if
        included from file->implicit_preinclude header.

        * directives.c (destringize_and_run): Adjust prototype.

2016-01-27  David Malcolm  <dmalcolm@redhat.com>

        PR preprocessor/69126
        * directives.c (destringize_and_run): Add expansion_loc param; use
        it when handling unexpanded pragmas to fixup the locations of the
        synthesized tokens.
        (_cpp_do__Pragma): Add expansion_loc param and use it when calling
        destringize_and_run.
        * internal.h (_cpp_do__Pragma): Add expansion_loc param.
        * macro.c (builtin_macro): Pass expansion location of _Pragma to
        _cpp_do__Pragma.

2016-01-14  David Malcolm  <dmalcolm@redhat.com>

        PR preprocessor/69177
        * line-map.c (LINE_MAP_MAX_LOCATION_WITH_PACKED_RANGES): New
        constant.
        (LINE_MAP_MAX_LOCATION_WITH_COLS): Add note about unit tests
        to comment.
        (can_be_stored_compactly_p): Reduce threshold from
        LINE_MAP_MAX_LOCATION_WITH_COLS to
        LINE_MAP_MAX_LOCATION_WITH_PACKED_RANGES.
        (get_combined_adhoc_loc): Likewise.
        (get_range_from_loc): Likewise.
        (linemap_line_start): Ensure that a new ordinary map is created
        when transitioning from range-packing being enabled to disabled,
        at the LINE_MAP_MAX_LOCATION_WITH_PACKED_RANGES threshold.  Set
        range_bits to 0 for new ordinary maps when beyond this limit.
        Prevent the "increase the column bits of a freshly created map"
        optimization if the range bits has reduced.

2016-01-08  Jakub Jelinek  <jakub@redhat.com>

        PR c++/69145
        * files.c (cpp_included_before): If IS_ADHOC_LOC (location), lookup
        real location from the line_table.

2016-01-04  Jakub Jelinek  <jakub@redhat.com>

        Update copyright years.

2015-12-22  David Malcolm  <dmalcolm@redhat.com>

        * line-map.c (get_combined_adhoc_loc): Remove condition
        on locus < RESERVED_LOCATION_COUNT when considering
        whether a caret == start == finish location can be
        simply stored as the caret location.

2015-12-07  David Malcolm  <dmalcolm@redhat.com>

        * include/line-map.h (rich_location::set_range): Add line_maps *
        param; convert param from source_range to source_location.  Drop
        "overwrite_loc_p" param.
        * line-map.c (rich_location::set_range): Likewise, acting as if
        "overwrite_loc_p" were true, and getting range from the location.

2015-11-20  David Malcolm  <dmalcolm@redhat.com>

        PR 62314
        * include/line-map.h (source_range::intersects_line_p): New
        method.
        (rich_location::~rich_location): New.
        (rich_location::add_fixit_insert): New method.
        (rich_location::add_fixit_remove): New method.
        (rich_location::add_fixit_replace): New method.
        (rich_location::get_num_fixit_hints): New accessor.
        (rich_location::get_fixit_hint): New accessor.
        (rich_location::MAX_FIXIT_HINTS): New constant.
        (rich_location::m_num_fixit_hints): New field.
        (rich_location::m_fixit_hints): New field.
        (class fixit_hint): New class.
        (class fixit_insert): New class.
        (class fixit_remove): New class.
        (class fixit_replace): New class.
        * line-map.c (source_range::intersects_line_p): New method.
        (rich_location::rich_location): Add initialization of
        m_num_fixit_hints to both ctors.
        (rich_location::~rich_location): New.
        (rich_location::add_fixit_insert): New method.
        (rich_location::add_fixit_remove): New method.
        (rich_location::add_fixit_replace): New method.
        (fixit_insert::fixit_insert): New.
        (fixit_insert::~fixit_insert): New.
        (fixit_insert::affects_line_p): New.
        (fixit_remove::fixit_remove): New.
        (fixit_remove::affects_line_p): New.
        (fixit_replace::fixit_replace): New.
        (fixit_replace::~fixit_replace): New.
        (fixit_replace::affects_line_p): New.

2015-11-19  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/60736
        * include/cpplib.h (cpp_errno_filename): New prototype.
        * errors.c (cpp_errno): Don't handle msgid "" specially, use
        _(msgid) instead of msgid as argument to cpp_error.
        (cpp_errno_filename): New function.
        * files.c (read_file_guts): Use cpp_errno_filename instead of
        cpp_errno.
        (open_file_failed): Likewise.  Use file->name if file->path is NULL
        in diagnostics.

2015-11-13  David Malcolm  <dmalcolm@redhat.com>

        * errors.c (cpp_diagnostic): Pass pfile->line_table to
        rich_location ctor.
        (cpp_diagnostic_with_line): Likewise.
        * include/cpplib.h (struct cpp_token): Update comment for src_loc
        to indicate that the range of the token is "baked into" the
        source_location.
        * include/line-map.h (source_location): Update the descriptive
        comment to reflect the packing scheme for short ranges, adding
        worked examples of location encoding.
        (struct line_map_ordinary): Drop field "column_bits" in favor
        of field "m_column_and_range_bits"; add field "m_range_bits".
        (ORDINARY_MAP_NUMBER_OF_COLUMN_BITS): Delete.
        (location_adhoc_data): Add source_range field.
        (struct line_maps): Add fields "default_range_bits",
        "num_optimized_ranges" and "num_unoptimized_ranges".
        (get_combined_adhoc_loc): Add source_range param.
        (get_range_from_loc): New declaration.
        (pure_location_p): New prototype.
        (COMBINE_LOCATION_DATA):  Add source_range param.
        (SOURCE_LINE): Update for renaming of column_bits.
        (SOURCE_COLUMN): Likewise.  Shift the column right by the map's
        range_bits.
        (LAST_SOURCE_LINE_LOCATION): Update for renaming of column_bits.
        (linemap_position_for_line_and_column): Add line_maps * params.
        (rich_location::rich_location): Likewise.
        * lex.c (_cpp_lex_direct): Capture the range of the token, baking
        it into token->src_loc via a call to COMBINE_LOCATION_DATA.
        * line-map.c (LINE_MAP_MAX_COLUMN_NUMBER): Reduce from 1U << 17 to
        1U << 12.
        (location_adhoc_data_hash): Add the src_range into
        the hash value.
        (location_adhoc_data_eq): Require equality of the src_range
        values.
        (can_be_stored_compactly_p): New function.
        (get_combined_adhoc_loc): Add src_range param, and store it,
        via a bit-packing scheme for short ranges, otherwise within the
        lookaside table.  Remove the requirement that data is non-NULL.
        (get_range_from_adhoc_loc): New function.
        (get_range_from_loc): New function.
        (pure_location_p): New function.
        (linemap_add): Ensure that start_location has zero for the
        range_bits, unless we're past LINE_MAP_MAX_LOCATION_WITH_COLS.
        Initialize range_bits to zero.  Assert that the start_location
        is "pure".
        (linemap_line_start): Assert that the
        column_and_range_bits >= range_bits.
        Update determinination of whether we need to start a new map
        using the effective column bits, without the range bits.
        Use the set's default_range_bits in new maps, apart from
        those with column_bits == 0, which should also have 0 range_bits.
        Increase the column bits for new maps by the range bits.
        When adding lines to an existing map, use set->highest_line
        directly rather than offsetting highest by SOURCE_COLUMN.
        Add assertions to sanity-check the return value.
        (linemap_position_for_column): Offset to_column by range_bits.
        Update set->highest_location if necessary.
        (linemap_position_for_line_and_column): Add line_maps * param.
        Update the calculation to offset the column by range_bits, and
        conditionalize it on being <= LINE_MAP_MAX_LOCATION_WITH_COLS.
        Bound it by LINEMAPS_MACRO_LOWEST_LOCATION.  Update
        set->highest_location if necessary.
        (linemap_position_for_loc_and_offset): Handle ad-hoc locations;
        pass "set" to linemap_position_for_line_and_column.
        (linemap_macro_map_loc_unwind_toward_spelling): Add line_maps
        param.  Handle ad-hoc locations.
        (linemap_location_in_system_header_p): Pass on "set" to call to
        linemap_macro_map_loc_unwind_toward_spelling.
        (linemap_macro_loc_to_spelling_point): Retain ad-hoc locations.
        Pass on "set" to call to
        linemap_macro_map_loc_unwind_toward_spelling.
        (linemap_resolve_location): Retain ad-hoc locations.  Pass on
        "set" to call to linemap_macro_map_loc_unwind_toward_spelling.
        (linemap_unwind_toward_expansion):  Pass on "set" to call to
        linemap_macro_map_loc_unwind_toward_spelling.
        (linemap_expand_location): Extract the data pointer before
        extracting the location.
        (rich_location::rich_location): Add line_maps param; use it to
        extract the range from the source_location.
        * location-example.txt: Regenerate, showing new representation.

2015-11-06  David Malcolm  <dmalcolm@redhat.com>

        * errors.c (cpp_diagnostic): Update for change in signature
        of "error" callback.
        (cpp_diagnostic_with_line): Likewise, calling override_column
        on the rich_location.
        * include/cpplib.h (struct cpp_callbacks): Within "error"
        callback, convert param from source_location to rich_location *,
        and drop column_override param.
        * include/line-map.h (struct source_range): New struct.
        (struct location_range): New struct.
        (class rich_location): New class.
        (linemap_client_expand_location_to_spelling_point): New declaration.
        * line-map.c (rich_location::rich_location): New ctors.
        (rich_location::lazily_expand_location): New method.
        (rich_location::override_column): New method.
        (rich_location::add_range): New methods.
        (rich_location::set_range): New method.

2015-11-06  David Malcolm  <dmalcolm@redhat.com>

        * include/line-map.h (struct linemap_stats): Add fields
        "adhoc_table_size" and "adhoc_table_entries_used".
        * line-map.c (linemap_get_statistics): Populate above fields.

2015-11-04  Mikhail Maltsev  <maltsevm@gmail.com>

        * config.in: Regenerate.
        * configure: Regenerate.
        * configure.ac: Remove ENABLE_CHECKING.

2015-11-03  Uros Bizjak  <ubizjak@gmail.com>

        * lex.c (search_line_sse42): Correctly advance the pointer to an
        aligned address.

2015-11-02  David Malcolm  <dmalcolm@redhat.com>

        * include/line-map.h (source_location): In the table in the
        descriptive comment, show UNKNOWN_LOCATION, BUILTINS_LOCATION,
        LINE_MAP_MAX_LOCATION_WITH_COLS, LINE_MAP_MAX_SOURCE_LOCATION.
        Add notes about ad-hoc values.

2015-10-21  Mikhail Maltsev  <maltsevm@gmail.com>

        * include/line-map.h: Use CHECKING_P instead of ENABLE_CHECKING.
        * init.c: Likewise.
        * macro.c (struct macro_arg_token_iter, set_arg_token,
        macro_arg_token_iter_init, macro_arg_token_iter_forward,
        macro_arg_token_iter_get_token, macro_arg_token_iter_get_location,
        alloc_expanded_arg_mem, _cpp_backup_tokens): Likewise.

        * config.in: Regenerate.
        * configure: Regenerate.
        * configure.ac (CHECKING_P): Define.
        * system.h (fancy_abort): Declare.
        (abort): Define.
        (gcc_assert): Define. Use CHECKING_P.

2015-10-13  Mikhail Maltsev  <maltsevm@gmail.com>

        * system.h (CHECKING_P, gcc_checking_assert): Define.

2015-09-21  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c/66415
        * line-map.c (linemap_position_for_loc_and_offset): Handle the
        case of long lines encoded in multiple maps.

2015-09-07  Marek Polacek  <polacek@redhat.com>

        * system.h (INTTYPE_MINIMUM): Rewrite to avoid shift warning.

2015-08-06  Yaakov Selkowitz  <yselkowi@redhat.com>

        * configure: Regenerate.

2015-07-08  Thomas Schwinge  <thomas@codesourcery.com>

        * include/line-map.h (RESERVED_LOCATION_COUNT): Change type to
        source_location.

2015-07-02  Paolo Carlini  <paolo.carlini@oracle.com>

        PR preprocessor/53690
        * charset.c (_cpp_valid_ucn): Add cppchar_t * parameter and change
        return type to bool.  Fix encoding of \u0000 and \U00000000 in C++.
        (convert_ucn): Adjust call.
        * lex.c (forms_identifier_p): Likewise.
        * internal.h (_cpp_valid_ucn): Adjust declaration.

2015-06-30  Edward Smith-Rowland  <3dw4rd@verizon.net>

        Implement N4197 - Adding u8 character literals
        * include/cpplib.h (UTF8CHAR, UTF8CHAR_USERDEF): New cpp tokens;
        (struct cpp_options): Add utf8_char_literals.
        * init.c (struct lang_flags): Add utf8_char_literals;
        (struct lang_flags lang_defaults): Add column for utf8_char_literals.
        * macro.c (stringify_arg()): Treat CPP_UTF8CHAR token;
        * expr.c (cpp_userdef_char_remove_type(), cpp_userdef_char_add_type()):
        Treat CPP_UTF8CHAR_USERDEF, CPP_UTF8CHAR tokens;
        (cpp_userdef_char_p()): Treat CPP_UTF8CHAR_USERDEF token;
        (eval_token(), _cpp_parse_expr()): Treat CPP_UTF8CHAR token.
        * lex.c (lex_string(), _cpp_lex_direct()): Include CPP_UTF8CHAR tokens.
        * charset.c (converter_for_type(), cpp_interpret_charconst()):
        Treat CPP_UTF8CHAR token.

2015-06-30  Uros Bizjak  <ubizjak@gmail.com>

        * lex.c (search_line_sse42) [__GCC_ASM_FLAG_OUTPUTS__]: New main
        loop using asm flag outputs.

2015-06-08  Marek Polacek  <polacek@redhat.com>

        PR c/66415
        * line-map.c (linemap_position_for_loc_and_offset): Remove
        linemap_assert_fails; reverse conditions.

2015-05-26  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * line-map.c (LINE_MAP_MAX_COLUMN_NUMBER
        LINE_MAP_MAX_LOCATION_WITH_COLS,LINE_MAP_MAX_SOURCE_LOCATION):
        New constants.
        (linemap_line_start): Use them.
        (linemap_position_for_column): Use them.

2015-05-20  David Malcolm  <dmalcolm@redhat.com>

        * include/line-map.h (MAP_START_LOCATION): Eliminate the non-const
        variant, and tweak comment for the const variant.
        (ORDINARY_MAP_STARTING_LINE_NUMBER): Drop the non-const variant.
        (ORDINARY_MAP_INCLUDER_FILE_INDEX): Likewise.
        (ORDINARY_MAP_IN_SYSTEM_HEADER_P): Likewise.
        (SET_ORDINARY_MAP_NUMBER_OF_COLUMN_BITS): Delete.
        (ORDINARY_MAP_FILE_NAME): Drop the non-const variant.
        (MACRO_MAP_MACRO): Likewise.
        (MACRO_MAP_NUM_MACRO_TOKENS): Likewise.
        (MACRO_MAP_LOCATIONS): Likewise.
        (MACRO_MAP_EXPANSION_POINT_LOCATION): Likewise.
        * line-map.c (linemap_add): Replace writes through macros with
        direct field accesses.
        (linemap_enter_macro): Likewise.
        (linemap_line_start): Likewise.

2015-05-19  David Malcolm  <dmalcolm@redhat.com>

        * directives.c (do_line): Strengthen local "map" from
        const line_map * to const line_map_ordinary *.
        (do_linemarker): Likewise.
        (_cpp_do_file_change): Assert that we're not dealing with
        a macro map.  Introduce local "ord_map" via a call to
        linemap_check_ordinary, guarded within the check for
        non-NULL.  Use it for typesafety.
        * files.c (cpp_make_system_header): Strengthen local "map" from
        const line_map * to const line_map_ordinary *.
        * include/cpplib.h (struct cpp_callbacks): Likewise for second
        parameter of "file_change" callback.
        * include/line-map.h (struct line_map): Convert from a struct
        containing a union to a base class.
        (struct line_map_ordinary): Convert to a subclass of line_map.
        (struct line_map_macro): Likewise.
        (linemap_check_ordinary): Strengthen return type from line_map *
        to line_map_ordinary *, and add a const-variant.
        (linemap_check_macro): New pair of functions.
        (ORDINARY_MAP_STARTING_LINE_NUMBER): Strengthen param from
        const line_map * to const line_map_ordinary *, eliminating call
        to linemap_check_ordinary.  Likewise for the non-const variant.
        (ORDINARY_MAP_INCLUDER_FILE_INDEX): Likewise.
        (ORDINARY_MAP_IN_SYSTEM_HEADER_P): Likewise.
        (ORDINARY_MAP_NUMBER_OF_COLUMN_BITS): Likewise.
        (ORDINARY_MAP_FILE_NAME): Likewise.
        (MACRO_MAP_MACRO): Strengthen param from const line_map * to
        const line_map_macro *.  Likewise for the non-const variant.
        (MACRO_MAP_NUM_MACRO_TOKENS): Likewise.
        (MACRO_MAP_LOCATIONS): Likewise.
        (MACRO_MAP_EXPANSION_POINT_LOCATION): Likewise.
        (struct maps_info): Replace with...
        (struct maps_info_ordinary):...this and...
        (struct maps_info_macro): ...this.
        (struct line_maps): Convert fields "info_ordinary" and
        "info_macro" to the above new structs.
        (LINEMAPS_MAP_INFO): Delete both functions.
        (LINEMAPS_MAPS): Likewise.
        (LINEMAPS_ALLOCATED): Rewrite both variants to avoid using
        LINEMAPS_MAP_INFO.
        (LINEMAPS_USED): Likewise.
        (LINEMAPS_CACHE): Likewise.
        (LINEMAPS_MAP_AT): Likewise.
        (LINEMAPS_ORDINARY_MAPS): Strengthen return type from line_map *
        to line_map_ordinary *.
        (LINEMAPS_ORDINARY_MAP_AT): Likewise.
        (LINEMAPS_LAST_ORDINARY_MAP): Likewise.
        (LINEMAPS_LAST_ALLOCATED_ORDINARY_MAP): Likewise.
        (LINEMAPS_MACRO_MAPS): Strengthen return type from line_map * to
        line_map_macro *.
        (LINEMAPS_MACRO_MAP_AT): Likewise.
        (LINEMAPS_LAST_MACRO_MAP): Likewise.
        (LINEMAPS_LAST_ALLOCATED_MACRO_MAP): Likewise.
        (linemap_map_get_macro_name): Strengthen param from
        const line_map * to const line_map_macro *.
        (SOURCE_LINE): Strengthen first param from const line_map * to
        const line_map_ordinary *, removing call to
        linemap_check_ordinary.
        (SOURCE_COLUMN): Likewise.
        (LAST_SOURCE_LINE_LOCATION): Likewise.
        (LAST_SOURCE_LINE): Strengthen first param from const line_map *
        to const line_map_ordinary *.
        (LAST_SOURCE_COLUMN): Likewise.
        (INCLUDED_FROM): Strengthen return type from line_map * to
        line_map_ordinary *., and second param from const line_map *
        to const line_map_ordinary *, removing call to
        linemap_check_ordinary.
        (MAIN_FILE_P): Strengthen param from const line_map * to
        const line_map_ordinary *, removing call to
        linemap_check_ordinary.
        (linemap_position_for_line_and_column): Strengthen param from
        const line_map * to const line_map_ordinary *.
        (LINEMAP_FILE): Strengthen param from const line_map * to
        const line_map_ordinary *, removing call to
        linemap_check_ordinary.
        (LINEMAP_LINE): Likewise.
        (LINEMAP_SYSP): Likewise.
        (linemap_resolve_location): Strengthen final param from
        const line_map ** to const line_map_ordinary **.
        * internal.h (CPP_INCREMENT_LINE): Likewise for local "map".
        (linemap_enter_macro): Strengthen return type from
        const line_map * to const line_map_macro *.
        (linemap_add_macro_token): Likewise for first param.
        * line-map.c (linemap_check_files_exited): Strengthen local "map"
        from const line_map * to const line_map_ordinary *.
        (new_linemap): Introduce local "map_size" and use it when
        calculating how large the buffer should be.  Rewrite based
        on change of info_macro and info_ordinary into distinct types.
        (linemap_add): Strengthen locals "map" and "from" from line_map *
        to line_map_ordinary *.
        (linemap_enter_macro): Strengthen return type from
        const line_map * to const line_map_macro *, and local "map" from
        line_map * to line_map_macro *.
        (linemap_add_macro_token): Strengthen param "map" from
        const line_map * to const line_map_macro *.
        (linemap_line_start): Strengthen local "map" from line_map * to
        line_map_ordinary *.
        (linemap_position_for_column): Likewise.
        (linemap_position_for_line_and_column): Strengthen first param
        from const line_map * to const line_map_ordinary *.
        (linemap_position_for_loc_and_offset): Strengthen local "map" from
        const line_map * to const line_map_ordinary *.
        (linemap_ordinary_map_lookup): Likewise for return type and locals
        "cached" and "result".
        (linemap_macro_map_lookup): Strengthen return type and locals
        "cached" and "result" from const line_map * to
        const line_map_macro *.
        (linemap_macro_map_loc_to_exp_point): Likewise for param "map".
        (linemap_macro_map_loc_to_def_point): Likewise.
        (linemap_macro_map_loc_unwind_toward_spelling): Likewise.
        (linemap_get_expansion_line): Strengthen local "map" from
        const line_map * to const line_map_ordinary *.
        (linemap_get_expansion_filename): Likewise.
        (linemap_map_get_macro_name): Strengthen param from
        const line_map * to const line_map_macro *.
        (linemap_location_in_system_header_p): Add call to
        linemap_check_ordinary in region guarded by
        !linemap_macro_expansion_map_p.  Introduce local "macro_map" via
        linemap_check_macro in other region, using it in place of "map"
        for typesafety.
        (first_map_in_common_1): Add calls to linemap_check_macro.
        (trace_include): Strengthen param "map" from const line_map * to
        const line_map_ordinary *.
        (linemap_macro_loc_to_spelling_point): Strengthen final param from
        const line_map ** to const line_map_ordinary **.  Replace a
        C-style cast with a const_cast, and add calls to
        linemap_check_macro and linemap_check_ordinary.
        (linemap_macro_loc_to_def_point): Likewise.
        (linemap_macro_loc_to_exp_point): Likewise.
        (linemap_resolve_location): Strengthen final param from
        const line_map ** to const line_map_ordinary **.
        (linemap_unwind_toward_expansion): Introduce local "macro_map" via
        a checked cast and use it in place of *map.
        (linemap_unwind_to_first_non_reserved_loc): Strengthen local
        "map1" from const line_map * to const line_map_ordinary *.
        (linemap_expand_location): Introduce local "ord_map" via a checked
        cast and use it in place of map.
        (linemap_dump): Make local "map" const.  Strengthen local
        "includer_map" from line_map * to const line_map_ordinary *.
        Introduce locals "ord_map" and "macro_map" via checked casts and
        use them in place of "map" for typesafety.
        (linemap_dump_location): Strengthen local "map" from
        const line_map * to const line_map_ordinary *.
        (linemap_get_file_highest_location): Update for elimination of
        union.
        (linemap_get_statistics): Strengthen local "cur_map" from
        line_map * to const line_map_macro *.  Update uses of sizeof to
        use the appropriate line_map subclasses.
        * macro.c (_cpp_warn_if_unused_macro): Add call to
        linemap_check_ordinary.
        (builtin_macro): Strengthen local "map" from const line_map * to
        const line_map_macro *.
        (enter_macro_context): Likewise.
        (replace_args): Likewise.
        (tokens_buff_put_token_to): Likewise for param "map".
        (tokens_buff_add_token): Likewise.

2015-05-13  David Malcolm  <dmalcolm@redhat.com>

        * include/line-map.h (source_location): Add a reference to
        location-example.txt to the descriptive comment.
        * location-example.txt: New file.

2015-05-13  David Malcolm  <dmalcolm@redhat.com>

        * include/line-map.h (MAX_SOURCE_LOCATION): Convert from a macro
        to a const source_location.
        (RESERVED_LOCATION_COUNT): Likewise.
        (linemap_check_ordinary): Convert from a macro to a pair of inline
        functions, for const/non-const arguments.
        (MAP_START_LOCATION): Likewise.
        (ORDINARY_MAP_STARTING_LINE_NUMBER): Likewise.
        (ORDINARY_MAP_INCLUDER_FILE_INDEX): Likewise.
        (ORDINARY_MAP_IN_SYSTEM_HEADER_P): Likewise.
        (ORDINARY_MAP_NUMBER_OF_COLUMN_BITS): Convert from a macro to a
        pair of inline functions, for const/non-const arguments, where the
        latter is named...
        (SET_ORDINARY_MAP_NUMBER_OF_COLUMN_BITS): New function.
        (ORDINARY_MAP_FILE_NAME): Convert from a macro to a pair of inline
        functions, for const/non-const arguments.
        (MACRO_MAP_MACRO): Likewise.
        (MACRO_MAP_NUM_MACRO_TOKENS): Likewise.
        (MACRO_MAP_LOCATIONS): Likewise.
        (MACRO_MAP_EXPANSION_POINT_LOCATION): Likewise.
        (LINEMAPS_MAP_INFO): Likewise.
        (LINEMAPS_MAPS): Likewise.
        (LINEMAPS_ALLOCATED): Likewise.
        (LINEMAPS_USED): Likewise.
        (LINEMAPS_CACHE): Likewise.
        (LINEMAPS_ORDINARY_CACHE): Likewise.
        (LINEMAPS_MACRO_CACHE): Likewise.
        (LINEMAPS_MAP_AT): Convert from a macro to an inline function.
        (LINEMAPS_LAST_MAP): Likewise.
        (LINEMAPS_LAST_ALLOCATED_MAP): Likewise.
        (LINEMAPS_ORDINARY_MAPS): Likewise.
        (LINEMAPS_ORDINARY_MAP_AT): Likewise.
        (LINEMAPS_ORDINARY_ALLOCATED): Likewise.
        (LINEMAPS_ORDINARY_USED): Likewise.
        (LINEMAPS_LAST_ORDINARY_MAP): Likewise.
        (LINEMAPS_LAST_ALLOCATED_ORDINARY_MAP): Likewise.
        (LINEMAPS_MACRO_MAPS): Likewise.
        (LINEMAPS_MACRO_MAP_AT): Likewise.
        (LINEMAPS_MACRO_ALLOCATED): Likewise.
        (LINEMAPS_MACRO_USED): Likewise.
        (LINEMAPS_MACRO_LOWEST_LOCATION): Likewise.
        (LINEMAPS_LAST_MACRO_MAP): Likewise.
        (LINEMAPS_LAST_ALLOCATED_MACRO_MAP): Likewise.
        (IS_ADHOC_LOC): Likewise.
        (COMBINE_LOCATION_DATA): Likewise.
        (SOURCE_LINE): Likewise.
        (SOURCE_COLUMN): Likewise.
        (LAST_SOURCE_LINE_LOCATION): Likewise.
        (LAST_SOURCE_LINE): Likewise.
        (LAST_SOURCE_COLUMN): Likewise.
        (LAST_SOURCE_LINE_LOCATION)
        (INCLUDED_FROM): Likewise.
        (MAIN_FILE_P): Likewise.
        (LINEMAP_FILE): Likewise.
        (LINEMAP_LINE): Likewise.
        (LINEMAP_SYSP): Likewise.
        (linemap_location_before_p): Likewise.
        * line-map.c (linemap_check_files_exited): Make local "map" const.
        (linemap_add): Use SET_ORDINARY_MAP_NUMBER_OF_COLUMN_BITS.
        (linemap_line_start): Likewise.

2015-05-13  Michael Haubenwallner  <michael.haubenwallner@ssi-schaefer.com>

        * aclocal.m4: Regenerated with automake-1.11.6.

2015-05-13  David Malcolm  <dmalcolm@redhat.com>

        * include/line-map.h (linemap_assert): Move up within the file to
        before all of the map accessor macros.
        (linemap_assert_fails): Likewise.
        (linemap_check_ordinary): Likewise.
        (linemap_macro_expansion_map_p): Likewise.

2015-05-12  David Malcolm  <dmalcolm@redhat.com>

        * directives.c (do_line): Set seen_line_directive on line_table.
        (do_linemarker): Likewise.
        * include/line-map.h (struct line_maps): Add new field
        "seen_line_directive".

2015-05-08  Jason Merrill  <jason@redhat.com>

        * include/cpplib.h: Add CPP_W_CXX11_COMPAT.
        (struct cpp_options): Add cpp_warn_cxx11_compat.
        * init.c (cpp_create_reader): Initialize it.
        * lex.c (lex_string): Add -Wc++11-compat warning.

2015-05-05  David Malcolm  <dmalcolm@redhat.com>

        * pch.c (cpp_valid_state): Fix indentation so that it reflects the
        block structure.

2015-05-05  David Malcolm  <dmalcolm@redhat.com>

        * include/line-map.h: Fix comment at the top of the file.
        (source_location): Rewrite and expand the comment for this
        typedef, adding an ascii-art table to clarify how source_location
        values are allocated.
        * line-map.c: Fix comment at the top of the file.

2015-04-09  Richard Biener  <rguenther@suse.de>

        PR pch/65550
        * files.c (pch_open_file): Allow main and pre-included files
        when trying to open a PCH.

2015-04-06  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/61977
        * lex.c (cpp_peek_token): If peektok is CPP_EOF, back it up
        with all tokens peeked by the current function.

2015-04-02  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/61977
        * lex.c (cpp_peek_token): Temporarily clear pfile->cb.line_change.

2015-03-23  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/65238
        * internal.h (_cpp_scan_out_logical_line): Add third argument.
        * directives.c (prepare_directive_trad): Pass false to it.
        * traditional.c (_cpp_read_logical_line_trad,
        _cpp_create_trad_definition): Likewise.
        (struct fun_macro): Add paramc field.
        (fun_like_macro): New function.
        (maybe_start_funlike): Handle NODE_BUILTIN macros.  Initialize
        macro->paramc field.
        (save_argument): Use macro->paramc instead of
        macro->node->value.macro->paramc.
        (push_replacement_text): Formatting fix.
        (recursive_macro): Use fun_like_macro helper.
        (_cpp_scan_out_logical_line): Likewise.  Add BUILTIN_MACRO_ARG
        argument.  Initialize fmacro.paramc field.  Handle builtin
        function-like macros.

2015-03-16  Edward Smith-Rowland  <3dw4rd@verizon.net>

        PR c++/64626
        * lex.c (lex_number): If a number ends with digit-seps (') skip back
        and let lex_string take them.

2015-03-02  Markus Trippelsdorf  <markus@trippelsdorf.de>

        PR target/65261
        * lex.c (search_line_fast): Silence ubsan errors.

2015-02-03    <dodji@redhat.com>

        PR preprocessor/64803
        * internal.h (cpp_reader::top_most_macro_node): New data member.
        * macro.c (enter_macro_context): Pass the location of the end of
        the top-most invocation of the function-like macro, or the
        location of the expansion point of the top-most object-like macro.
        (cpp_get_token_1): Store the top-most macro node in the new
        pfile->top_most_macro_node data member.
        (_cpp_pop_context): Clear the new cpp_reader::top_most_macro_node
        data member.

2015-01-30  Szabolcs Nagy  <szabolcs.nagy@arm.com>

        * lex.c (search_line_fast): Change __ARM_NEON__ to __ARM_NEON.

2015-01-23  Marek Polacek  <polacek@redhat.com>

        DR#412
        PR preprocessor/60570
        * directives.c (do_elif): Don't evaluate #elif conditionals
        when they don't need to be.

2015-01-16  Jakub Jelinek  <jakub@redhat.com>

        * expr.c (cpp_classify_number): Add N_() around ?: string
        literals used in cpp_error_with_line call as format string.

2015-01-05  Jakub Jelinek  <jakub@redhat.com>

        Update copyright years.

2014-12-19  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/63831
        * directives.c (lex_macro_node): Remove __has_attribute__ handling.
        * internal.h (struct spec_node): Remove n__has_attribute__ field.
        (struct lexer_state): Remove in__has_attribute__ field.
        * macro.c (_cpp_builtin_macro_text): Handle BT_HAS_ATTRIBUTE.
        * identifiers.c (_cpp_init_hashtable): Remove __has_attribute__
        handling.
        * init.c (builtin_array): Add __has_attribute and __has_cpp_attribute.
        (cpp_init_special_builtins): Don't initialize __has_attribute
        or __has_cpp_attribute if CLK_ASM or pfile->cb.has_attribute is NULL.
        * traditional.c (enum ls): Remove ls_has_attribute,
        ls_has_attribute_close.
        (_cpp_scan_out_logical_line): Remove __has_attribute__ handling.
        * include/cpplib.h (enum cpp_builtin_type): Add BT_HAS_ATTRIBUTE.
        * pch.c (cpp_read_state): Remove __has_attribute__ handling.
        * expr.c (eval_token): Likewise.
        (parse_has_attribute): Removed.

2014-12-11  Uros Bizjak  <ubizjak@gmail.com>

        * directives.c (cpp_define_formatted): Use xvasprintf.

2014-12-05  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * line-map.c (linemap_position_for_loc_and_offset): Add new
        linemap_assert_fails.

2014-12-02  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * include/line-map.h (linemap_assert_fails): Declare.
        * line-map.c (linemap_position_for_loc_and_offset): Use it.

2014-12-02  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * line-map.c (linemap_add): Fix typo.
        (linemap_line_start): Fix whitespace.

2014-11-29  John Schmerge  <jbschmerge@gmail.com>

        PR preprocessor/41698
        * charset.c (one_utf8_to_utf16): Do not produce surrogate pairs
        for 0xffff.

2014-11-25  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/60436
        * line-map.c (linemap_line_start): If highest is above 0x60000000
        and we are still tracking columns or highest is above 0x70000000,
        force add_map.

2014-11-20  Uros Bizjak  <ubizjak@gmail.com>

        PR target/63966
        * lex.c [__i386__ || __x86_64__]: Compile special SSE functions
        only for (__GNUC__ >= 5 || !defined(__PIC__)).

2014-11-13  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * include/line-map.h: Include EXPR, so that unused variable warnings
        do not occur.

2014-11-11  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR fortran/44054
        * include/line-map.h (linemap_position_for_loc_and_offset):
        Declare.
        * line-map.c (linemap_position_for_loc_and_offset): New.

2014-11-11  David Malcolm  <dmalcolm@redhat.com>

        * ChangeLog.jit: New.

2014-11-10  Edward Smith-Rowland  <3dw4rd@verizon.net>

        * include/cpplib.h (cpp_callbacks): Add has_attribute.
        * internal.h (lexer_state): Add in__has_attribute__.
        * directives.c (lex_macro_node): Prevent use of __has_attribute__
        as a macro.
        * expr.c (parse_has_attribute): New function; (eval_token): Look for
        __has_attribute__ and route to parse_has_attribute.
        * identifiers.c (_cpp_init_hashtable): Initialize n__has_attribute__.
        * pch.c (cpp_read_state): Initialize n__has_attribute__.
        * traditional.c (enum ls): Add ls_has_attribute, ls_has_attribute_close;
        (_cpp_scan_out_logical_line): Attend to __has_attribute__.

2014-11-06  Joseph Myers  <joseph@codesourcery.com>

        * include/cpp-id-data.h (struct cpp_macro): Update comment
        regarding parameters.
        * include/cpplib.h (struct cpp_macro_arg, struct cpp_identifier):
        Add spelling fields.
        (struct cpp_token): Update comment on macro_arg.
        * internal.h (_cpp_save_parameter): Add extra argument.
        (_cpp_spell_ident_ucns): New declaration.
        * lex.c (lex_identifier): Add SPELLING argument.  Set *SPELLING to
        original spelling of identifier.
        (_cpp_lex_direct): Update calls to lex_identifier.
        (_cpp_spell_ident_ucns): New function, factored out of
        cpp_spell_token.
        (cpp_spell_token): Adjust FORSTRING argument semantics to return
        original spelling of identifiers.  Use _cpp_spell_ident_ucns in
        !FORSTRING case.
        (_cpp_equiv_tokens): Check spellings of identifiers and macro
        arguments are identical.
        * macro.c (macro_arg_saved_data): New structure.
        (paste_tokens): Use original spellings of identifiers from
        cpp_spell_token.
        (_cpp_save_parameter): Add argument SPELLING.  Save both canonical
        node and its value.
        (parse_params): Update calls to _cpp_save_parameter.
        (lex_expansion_token): Save spelling of macro argument tokens.
        (_cpp_create_definition): Extract canonical node from saved data.
        (cpp_macro_definition): Use UCNs in spelling of macro name.  Use
        original spellings of macro argument tokens and identifiers.
        * traditional.c (scan_parameters): Update call to
        _cpp_save_parameter.

2014-11-05  Joseph Myers  <joseph@codesourcery.com>

        PR preprocessor/9449
        * init.c (lang_defaults): Enable extended identifiers for C++ and
        C99-based standards.

2014-10-22  Alan Modra  <amodra@gmail.com>

        * symtab.c (ht_create): Use obstack_specify_allocation in place of
        _obstack_begin.
        * files.c (_cpp_init_files): Likewise.
        * init.c (cpp_create_reader): Likewise.
        * identifiers.c (_cpp_init_hashtable): Likewise.

2014-10-14  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * include/line-map.h (linemap_location_from_macro_expansion_p):
        const struct line_maps * argument.
        (linemap_position_for_line_and_column): const struct line_map *
        argument.
        * line-map.c (linemap_add_macro_token): Use correct argument name
        in comment.
        (linemap_position_for_line_and_column): const struct line_map *
        argument.
        (linemap_macro_map_loc_to_def_point): Fix comment. Make static.
        (linemap_location_from_macro_expansion_p): const struct line_maps *
        argument.
        (linemap_resolve_location): Fix argument names in comment.

2014-10-03  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * lex.c (search_line_fast): Add new version to be used for Power8
        and later targets when Altivec is enabled.  Restrict the existing
        Altivec version to big-endian systems so that lvsr is not used on
        little endian, where it is deprecated.  Remove LE-specific code
        from the now-BE-only version.

2014-10-02  Bernd Edlinger  <bernd.edlinger@hotmail.de>
            Jeff Law  <law@redhat.com>

        * charset.c (convert_no_conversion): Reallocate memory with 25%
        headroom.

2014-10-01  Edward Smith-Rowland  <3dw4rd@verizon.net>

        Implement SD-6: SG10 Feature Test Recommendations
        * internal.h (lexer_state, spec_nodes): Add in__has_include__.
        * directives.c: Support __has_include__ builtin.
        * expr.c (parse_has_include): New function to parse __has_include__
        builtin; (eval_token()): Use it.
        * files.c (_cpp_has_header()): New funtion to look for header;
        (open_file_failed()): Not an error to not find a header file for
        __has_include__.
        * identifiers.c (_cpp_init_hashtable()): Add entry for __has_include__.
        * pch.c (cpp_read_state): Lookup __has_include__.
        * traditional.c (enum ls, _cpp_scan_out_logical_line()): Walk through
        __has_include__ statements.

2014-09-30  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR preprocessor/58893
        * errors.c (cpp_diagnostic): Fix possible out of bounds access.
        * files.c (_cpp_stack_include): Initialize src_loc for IT_CMDLINE.

2014-09-24  Marek Polacek  <polacek@redhat.com>

        PR c/61405
        PR c/53874
        * include/cpplib.h (enum cpp_ttype): Define CPP_KEYWORD.

2014-09-17  Jan Hubicka  <hubicka@ucw.cz>

        * charset.c (conversion): Rename to ...
        (cpp_conversion): ... this one; update.
        * files.c (file_hash_entry): Rename to ...
        (cpp_file_hash_entry): ... this one ; update.

2014-09-17  Marek Polacek  <polacek@redhat.com>

        PR c/61854
        * init.c (struct lang_flags): Remove cplusplus_comments.
        (cpp_set_lang): Likewise.
        (post_options): Likewise.
        * lex.c (_cpp_lex_direct): Disallow C++ style comments in C90/C94.

2014-09-09  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * include/cpplib.h (struct cpp_options): Declare warn_normalize as
        int instead of enum.

2014-09-04  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * macro.c (replace_args): Use cpp_pedwarning, cpp_warning and
        CPP_W flags.
        * include/cpplib.h: Add CPP_W_C90_C99_COMPAT and CPP_W_PEDANTIC.
        * init.c (cpp_create_reader): Do not init to -1 here.
        * expr.c (num_binary_op): Use cpp_pedwarning.

2014-08-29  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * directives.c (check_eol_1): New.
        (check_eol_endif_labels): New.
        (check_eol): Call check_eol_1.
        (do_else,do_endif): Call check_eol_endif_labels.

2014-08-29  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * macro.c (warn_of_redefinition): Suppress warnings for builtins
        that lack the NODE_WARN flag, unless Wbuiltin-macro-redefined.
        (_cpp_create_definition): Use Wbuiltin-macro-redefined for
        builtins that lack the NODE_WARN flag.
        * directives.c (do_undef): Likewise.
        * init.c (cpp_init_special_builtins): Do not change flags
        depending on Wbuiltin-macro-redefined.

2014-08-28  Edward Smith-Rowland  <3dw4rd@verizon.net>

        PR cpp/23827 - standard C++ should not have hex float preprocessor
        tokens
        * libcpp/init.c (lang_flags): Change CXX98 flag for extended numbers
        from 1 to 0.
        * libcpp/expr.c (cpp_classify_number): Weite error message for improper
        use of hex floating literal.

2014-08-23  Edward Smith-Rowland  <3dw4rd@verizon.net>

        * include/cpplib.h (enum c_lang): Add CLK_GNUCXX1Z, CLK_CXX1Z;
        Rename CLK_GNUCXX1Y, CLK_CXX1Y to CLK_GNUCXX14, CLK_CXX14;
        * init.c (struct lang_flags lang_defaults): Add column for trigraphs;
        Add rows for CLK_GNUCXX1Z, CLK_CXX1Z; (cpp_set_lang): Set trigraphs;
        (cpp_init_builtins): Set __cplusplus to 201402L for C++14;
        Set __cplusplus to 201500L for C++17.
        * expr.c (cpp_classify_number): Change C++1y to C++14 in binary
        constants error message.

2014-08-20  Marek Polacek  <polacek@redhat.com>

        * include/cpplib.h (cpp_options): Use signed char.
        * lex.c (_cpp_lex_direct): Don't warn in C++ mode.

2014-08-19  Marek Polacek  <polacek@redhat.com>

        * lex.c (_cpp_lex_direct): Fix a typo.

2014-08-19  Marek Polacek  <polacek@redhat.com>

        * charset.c (_cpp_valid_ucn): Warn only if -Wc90-c99-compat.
        * lex.c (_cpp_lex_direct): Likewise.
        * macro.c (replace_args): Likewise.
        (parse_params): Likewise.
        * include/cpplib.h (cpp_options): Change cpp_warn_c90_c99_compat
        to char.

2014-08-10 Marek Polacek  <polacek@redhat.com>

        PR c/51849
        * lex.c (_cpp_lex_direct): Warn when -Wc90-c99-compat is in effect.
        * charset.c (_cpp_valid_ucn): Likewise.
        * include/cpplib.h (cpp_options): Add cpp_warn_c90_c99_compat.
        * macro.c (replace_args): Warn when -Wc90-c99-compat is in effect.
        (parse_params): Likewise.

2014-07-27  Marek Polacek  <polacek@redhat.com>

        PR c/61861
        * macro.c (builtin_macro): Add location parameter.  Set
        location of builtin macro to the expansion point.
        (enter_macro_context): Pass location to builtin_macro.

2014-07-16  Dodji Seketeli  <dodji@redhat.com>

        Support location tracking for built-in macro tokens
        * include/line-map.h (line_maps::builtin_location): New data
        member.
        (line_map_init): Add a new parameter to initialize the new
        line_maps::builtin_location data member.
        * line-map.c (linemap_init): Initialize the
        line_maps::builtin_location data member.
        * macro.c (builtin_macro): Create a macro map and track the token
        resulting from the expansion of a built-in macro.

2014-07-10  Edward Smith-Rowland  <3dw4rd@verizon.net>
            Jonathan Wakely  <jwakely@redhat.com>

        PR preprocessor/61389
        * macro.c (_cpp_arguments_ok, parse_params, create_iso_definition):
        Warning messages mention C++11 in c++ mode and C99 in c mode.
        * lex.c (lex_identifier_intern, lex_identifier): Ditto

2014-07-09  Edward Smith-Rowland  <3dw4rd@verizon.net>

        PR c++/58155 - -Wliteral-suffix warns about tokens which are skipped
        by preprocessor
        * lex.c (lex_raw_string ()): Do not warn about invalid suffix
        if skipping. (lex_string ()): Ditto.

2014-06-04  Edward Smith-Rowland  <3dw4rd@verizon.net>

        PR c++/61038
        * macro.c (stringify_arg (cpp_reader *, macro_arg *)):
        Combine user-defined escape logic with the other string and char logic.

2014-05-26  Richard Biener  <rguenther@suse.de>

        * configure.ac: Remove long long and __int64 type checks,
        add check for uint64_t and fail if that wasn't found.
        * include/cpplib.h (cpp_num_part): Use uint64_t.
        * config.in: Regenerate.
        * configure: Likewise.

2014-05-21  Marek Polacek  <polacek@redhat.com>

        PR c/61212
        * files.c (find_file_in_dir): Add parens around &&.

2014-05-20  Edward Smith-Rowland  <3dw4rd@verizon.net>

        PR c++/61038
        * macro.c (stringify_arg (cpp_reader *, macro_arg *)):
        Check for user-defined literal strings and user-defined literal chars
        to escape necessary characters.

2014-05-20  Richard Biener  <rguenther@suse.de>

        * configure.ac: Copy gcc logic of detecting a 64bit type.
        Remove HOST_WIDE_INT define.
        * include/cpplib.h: typedef cpp_num_part to a 64bit type,
        similar to how hwint.h does it.
        * config.in: Regenerate.
        * configure: Likewise.

2014-05-09  Joey Ye  <joey.ye@arm.com>

        * files.c (find_file_in_dir): Always try to shorten for DOS
        non-system headers.
        * init.c (ENABLE_CANONICAL_SYSTEM_HEADERS): Default enabled for DOS.

2014-05-07  Richard Biener  <rguenther@suse.de>

        * configure.ac: Always set need_64bit_hwint to yes.
        * configure: Regenerated.

2014-04-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * lex.c: Remove Solaris 9 reference.

2014-02-24  Walter Lee  <walt@tilera.com>

        * configure.ac: Change "tilepro" triplet to "tilepro*".
        * configure: Regenerate.

2014-02-19  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/58844
        * macro.c (enter_macro_context): Only push
        macro_real_token_count (macro) tokens rather than
        macro->count tokens, regardless of
        CPP_OPTION (pfile, track-macro-expansion).

2014-02-07  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/56824
        * line-map.c (get_combined_adhoc_loc, linemap_get_expansion_line,
        linemap_get_expansion_filename, linemap_location_in_system_header_p,
        linemap_location_from_macro_expansion_p,
        linemap_macro_loc_to_spelling_point, linemap_macro_loc_to_def_point,
        linemap_macro_loc_to_exp_point, linemap_expand_location): Fix
        formatting.
        (linemap_compare_locations): Look through adhoc locations for both
        l0 and l1.

2014-01-23  Dodji Seketeli  <dodji@redhat.com>

        PR PR preprocessor/58580
        * include/line-map.h (linemap_get_file_highest_location): Declare
        new function.
        * line-map.c (linemap_get_file_highest_location): Define it.

2014-01-02  Richard Sandiford  <rdsandiford@googlemail.com>

        Update copyright years

2013-12-09  Joseph Myers  <joseph@codesourcery.com>

        PR preprocessor/55715
        * expr.c (num_binary_op): Implement subtraction directly rather
        than with negation and falling through into addition case.

2013-11-18  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * lex.c (search_line_fast): Correct for little endian.

2013-11-15  Joseph Myers  <joseph@codesourcery.com>

        * ucnid.tab: Add C11 and C11NOSTART data.
        * makeucnid.c (digit): Rename enum value to N99.
        (C11, N11, all_languages): New enum values.
        (NUM_CODE_POINTS, MAX_CODE_POINT): New macros.
        (flags, decomp, combining_value): Use NUM_CODE_POINTS as array
        size.
        (decomp): Use unsigned int as element type.
        (all_decomp): New array.
        (read_ucnid): Handle C11 and C11NOSTART.  Use MAX_CODE_POINT.
        (read_table): Use MAX_CODE_POINT.  Store all decompositions in
        all_decomp.
        (read_derived): Use MAX_CODE_POINT.
        (write_table): Use NUM_CODE_POINTS.  Print N99, C11 and N11
        flags.  Print whole array variable declaration rather than just
        array contents.
        (char_id_valid, write_context_switch): New functions.
        (main): Call write_context_switch.
        * ucnid.h: Regenerate.
        * include/cpplib.h (struct cpp_options): Add c11_identifiers.
        * init.c (struct lang_flags): Add c11_identifiers.
        (cpp_set_lang): Set c11_identifiers option from selected language.
        * internal.h (struct normalize_state): Document "previous" as
        previous starter character.
        (NORMALIZE_STATE_UPDATE_IDNUM): Take character as argument.
        * charset.c (DIG): Rename enum value to N99.
        (C11, N11): New enum values.
        (struct ucnrange): Give name to struct.  Use short for flags and
        unsigned int for end of range.  Include ucnid.h for whole variable
        declaration.
        (ucn_valid_in_identifier): Allow for characters up to 0x10FFFF.
        Allow for C11 in determining valid characters and valid start
        characters.  Use check_nfc for non-Hangul context-dependent
        checks.  Only store starter characters in nst->previous.
        (_cpp_valid_ucn): Pass new argument to
        NORMALIZE_STATE_UPDATE_IDNUM.
        * lex.c (lex_identifier): Pass new argument to
        NORMALIZE_STATE_UPDATE_IDNUM.  Call NORMALIZE_STATE_UPDATE_IDNUM
        after initial non-UCN part of identifier.
        (lex_number): Pass new argument to NORMALIZE_STATE_UPDATE_IDNUM.

2013-11-15  Joseph Myers  <joseph@codesourcery.com>

        * ucnid.tab: Mark C99 digits as [C99DIG].
        * makeucnid.c (read_ucnid): Handle [C99DIG].
        (read_table): Don't check for digit characters.
        * ucnid.h: Regenerate.

2013-11-06  Tobias Burnus  <burnus@net-b.de>

        * macro.c (_cpp_builtin_macro_text): Correct
        wording of two warnings.

2013-11-05  Tobias Burnus  <burnus@net-b.de>

        * include/cpplib.h (CPP_W_DATE_TIME): Added.
        (cpp_options): Add warn_date_time.
        * init.c (cpp_create_reader): Init it.
        * macro.c (_cpp_builtin_macro_text): Warn when
        __DATE__/__TIME__/__TIMESTAMP__ is used.

2013-10-31  Edward Smith-Rowland  <3dw4rd@verizon.net>

        Implement C++14 digit separators.
        * include/cpplib.h (cpp_options): Add digit_separators flag.
        * internal.h (DIGIT_SEP(c)): New macro.
        * expr.c (cpp_classify_number): Check improper placement of digit sep;
        (cpp_interpret_integer): Skip over digit separators.
        * init.c (lang_flags): Add digit_separators flag; (lang_defaults): Add
        digit separator flags per language; (cpp_set_lang): Set
        digit_separators
        * lex.c (lex_number): Add digits separator to allowable characters for
        C++14.

2013-10-15  David Malcolm  <dmalcolm@redhat.com>

        * Makefile.in (PICFLAG): New.
        (ALL_CFLAGS): Add PICFLAG.
        (ALL_CXXFLAGS): Likewise.
        * configure.ac: Add --enable-host-shared, setting up new
        PICFLAG variable.
        * configure: Regenerate.

2013-08-07  Richard Earnshaw  <rearnsha@arm.com>

        * configure.ac: Set need_64bit_hwint for all arm targets.
        * configure: Regenerated.

2013-07-20  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/57620
        * lex.c (lex_raw_string): Undo phase1 and phase2 transformations
        between R" and final " rather than only in between R"del( and )del".

2013-07-10  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/57824
        * lex.c (lex_raw_string): Allow reading new-lines if
        in_deferred_pragma or if parsing_args and there is still
        data in the current buffer.

        * include/cpplib.h (cpp_token_val_index): Change parameter type to
        const cpp_token *.
        * lex.c (cpp_token_val_index): Likewise.

        PR preprocessor/57757
        * lex.c (cpp_avoid_paste): Avoid pasting CPP_{,W,UTF8}STRING
        or CPP_STRING{16,32} with CPP_NAME or SPELL_LITERAL token that
        starts if a-zA-Z_.

2013-06-28  Ed Smith-Rowland  <3dw4rd@verizon.net>

        * lex.c (lex_raw_string(), lex_string()): Constrain suffixes treated
        as concatenated literal and macro to just the patterns found in
        inttypes.h; (is_macro()): New.

2013-06-24  Dehao Chen  <dehao@google.com>

        * files.c (_cpp_stack_include): Fix the highest_location when header
        file is guarded by #ifndef and is included twice.

2013-04-28  Jakub Jelinek  <jakub@redhat.com>

        N3472 binary constants
        * include/cpplib.h (struct cpp_options): Fix a typo in user_literals
        field comment.  Add binary_constants field.
        * init.c (struct lang_flags): Add binary_constants field.
        (lang_defaults): Add bin_cst column to the table.
        (cpp_set_lang): Initialize CPP_OPTION (pfile, binary_constants).
        * expr.c (cpp_classify_number): Talk about C++11 instead of C++0x
        in diagnostics.  Accept binary constants if
        CPP_OPTION (pfile, binary_constants) even when pedantic.  Adjust
        pedwarn message.

2013-04-24  Paolo Carlini  <paolo.carlini@oracle.com>

        * include/cpplib.h (enum c_lang): Add CLK_GNUCXX1Y and CLK_CXX1Y.
        * init.c (lang_defaults): Add defaults for the latter.
        (cpp_init_builtins): Define __cplusplus as 201300L for the latter.
        * lex.c (_cpp_lex_direct): Update.

2013-04-03  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        PR target/56771
        * configure.ac: Require 64-bit int for arm*-*-rtems*.
        * configure: Regenerate.

2013-03-06  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/56461
        * internal.h (struct cpp_buffer): Add to_free field.
        (_cpp_pop_file_buffer): Add third argument.
        * files.c (_cpp_stack_file): Set buffer->to_free.
        (_cpp_pop_file_buffer): Add to_free argument.  Free to_free
        if non-NULL, and if equal to file->buffer_start, also clear
        file->buffer{,_start,_valid}.
        * directives.c (_cpp_pop_buffer): Pass buffer->to_free
        to _cpp_pop_file_buffer.

2013-03-01  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/56461
        * files.c (_cpp_save_file_entries): Free result at the end.
        * pch.c (cpp_string_free): New function.
        (cpp_save_state): Use it in htab_create call.
        (cpp_write_pch_deps): Free ss->defs.  Destroy ss->definedhash.

2013-02-28  Jakub Jelinek  <jakub@redhat.com>

        * files.c (_cpp_find_file): If returning early, before storing
        something to *hash_slot and *hash_slot is NULL, call htab_clear_slot
        on it.  Access *hash_slot using void * type rather than
        struct file_hash_entry * to avoid aliasing issues.

        * configure.ac: Don't define ENABLE_CHECKING whenever
        --enable-checking is seen, instead use similar --enable-checking=yes
        vs. --enable-checking=release default as gcc/ subdir has and
        define ENABLE_CHECKING if ENABLE_CHECKING is defined in gcc/.
        Define ENABLE_VALGRIND_CHECKING if requested.
        * lex.c (new_buff): If ENABLE_VALGRIND_CHECKING, put _cpp_buff
        struct first in the allocated buffer and result->base after it.
        (_cpp_free_buff): If ENABLE_VALGRIND_CHECKING, free buff itself
        instead of buff->base.
        * config.in: Regenerated.
        * configure: Regenerated.

2013-02-13  Ed Smith-Rowland  <3dw4rd@verizon.net>

        PR c++/55582
        * lex.c (lex_raw_string): Allow string literal with suffix
        beginning with 's' to be parsed as a C++11 user-defined literal.

2013-01-14  Richard Sandiford  <rdsandiford@googlemail.com>

        Update copyright years.

2013-01-04  Paolo Carlini  <paolo.carlini@oracle.com>

        PR c++/54526 (again)
        * lex.c (_cpp_lex_direct): In C++11 mode, implement 2.5 p3, bullet 2.

2013-01-03  Marc Glisse  <marc.glisse@inria.fr>

        PR bootstrap/50177
        * line-map.c (get_combined_adhoc_loc): Cast from extern "C" type.
        (new_linemap): Likewise.
        (linemap_enter_macro): Likewise.

2012-12-03  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/55380
        PR other/54691
        * files.c (read_file_guts): Allocate extra 16 bytes instead of
        1 byte at the end of buf.  Pass size + 16 instead of size
        to _cpp_convert_input.
        * charset.c (_cpp_convert_input): Reallocate if there aren't
        at least 16 bytes beyond to.len in the buffer.  Clear 16 bytes
        at to.text + to.len.

2012-11-21  Steve Ellcey  <sellcey@mips.com>

        PR pch/55399
        * files.c (pch_open_file): Fix check for implicit_preinclude.

2012-11-16  Simon Baldwin  <simonb@google.com>

        * include/cpplib.h (struct cpp_options): Add canonical_system_headers.
        * files.c (find_file_in_dir): Call maybe_shorter_path() only if
        canonical_system_headers is set.
        * init.c (cpp_create_reader): Initialize canonical_system_headers.
        * configure.ac: Add new --enable-canonical-system-headers.
        * configure: Regenerate.
        * config.in: Regenerate.

2012-11-09  Ed Smith-Rowland  <3dw4rd@verizon.net>

        PR c++/54413
        * include/cpplib.h (cpp_interpret_float_suffix): Add cpp_reader* arg.
        (cpp_interpret_int_suffix): Add cpp_reader* arg.
        * init.c (cpp_create_reader): Iitialize new flags.
        * expr.c (interpret_float_suffix): Use new flags.
        (cpp_interpret_float_suffix): Add cpp_reader* arg.
        (interpret_int_suffix): Use new flags.
        (cpp_interpret_int_suffix): Add cpp_reader* arg.
        (cpp_classify_number): Adjust calls to interpret_x_suffix.

2012-10-23  Ian Bolton  <ian.bolton@arm.com>
            Jim MacArthur  <jim.macarthur@arm.com>
            Marcus Shawcroft  <marcus.shawcroft@arm.com>
            Nigel Stephens  <nigel.stephens@arm.com>
            Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
            Richard Earnshaw  <rearnsha@arm.com>
            Sofiane Naci  <sofiane.naci@arm.com>
            Stephen Thomas  <stephen.thomas@arm.com>
            Tejas Belagod  <tejas.belagod@arm.com>
            Yufeng Zhang  <yufeng.zhang@arm.com>

        * configure.ac: Enable AArch64.
        * configure: Regenerate.

2012-10-23  Joseph Myers  <joseph@codesourcery.com>

        * files.c (struct _cpp_file): Add implicit_preinclude.
        (pch_open_file): Allow a previously opened implicitly included
        file.
        (_cpp_find_file): Add implicit_preinclude argument.  Free file and
        do not call open_file_failed if implicit_preinclude.  Store
        implicit_preinclude value.
        (_cpp_stack_include, _cpp_fake_include, _cpp_compare_file_date):
        Update calls to _cpp_find_file.
        (_cpp_stack_include): Handle IT_DEFAULT.
        (cpp_push_default_include): New.
        * include/cpplib.h (cpp_push_default_include): Declare.
        * init.c (cpp_read_main_file): Update call to _cpp_find_file.
        * internal.h (enum include_type): Add IT_DEFAULT.
        (_cpp_find_file): Update prototype.

2012-10-15  Tobias Burnus  <burnus@net-b.de>

        * files.c (read_file_guts, _cpp_save_file_entries): Free memory
        before returning.
        * lex.c (warn_about_normalization): Ditto.
        * mkdeps.c (deps_save): Ditto.
        * pch.c (cpp_valid_state): Ditto.

2012-10-04  Florian Weimer  <fweimer@redhat.com>

        * directives.c (do_pragma_warning_or_error): New.
        (do_pragma_warning): New.
        (do_pragma_error): New.
        (_cpp_init_internal_pragmas): Register new pragmas.

2012-09-25  Dehao Chen  <dehao@google.com>

        PR middle-end/54704
        * line-map.c (location_adhoc_data_hash): Fix the hash function.

2012-09-25  Dehao Chen  <dehao@google.com>

        PR middle-end/54645
        * include/line-map.h (location_adhoc_data): Move location_adhoc_data
        into GC.
        (location_adhoc_data_map): Likewise.
        (line_maps): Likewise.
        (rebuild_location_adhoc_htab): New Function.
        * line-map.c (+rebuild_location_adhoc_htab): new Funcion.
        (get_combined_adhoc_loc): Move location_adhoc_data into GC.
        (location_adhoc_data_fini): Likewise.
        (linemap_init): Likewise.
        (location_adhoc_data_init): Remove Function.

2012-09-19  Dehao Chen  <dehao@google.com>

        * include/line-map.h (MAX_SOURCE_LOCATION): New value.
        (location_adhoc_data_fini): New.
        (get_combined_adhoc_loc): New.
        (get_data_from_adhoc_loc): New.
        (get_location_from_adhoc_loc): New.
        (location_adhoc_data_map): New.
        (COMBINE_LOCATION_DATA): New.
        (IS_ADHOC_LOC): New.
        (expanded_location): New field.
        (line_maps): New field.
        * line-map.c (location_adhoc_data): New.
        (location_adhoc_data_hash): New.
        (location_adhoc_data_eq): New.
        (location_adhoc_data_update): New.
        (get_combined_adhoc_loc): New.
        (get_data_from_adhoc_loc): New.
        (get_location_from_adhoc_loc): New.
        (location_adhoc_data_init): New.
        (location_adhoc_data_fini): New.
        (linemap_init): Initialize location_adhoc_data.
        (linemap_lookup): Change to use new location.
        (linemap_ordinary_map_lookup): Likewise.
        (linemap_macro_map_lookup): Likewise.
        (linemap_macro_map_loc_to_def_point): Likewise.
        (linemap_macro_map_loc_unwind_toward_spel): Likewise.
        (linemap_get_expansion_line): Likewise.
        (linemap_get_expansion_filename): Likewise.
        (linemap_location_in_system_header_p): Likewise.
        (linemap_location_from_macro_expansion_p): Likewise.
        (linemap_macro_loc_to_spelling_point): Likewise.
        (linemap_macro_loc_to_def_point): Likewise.
        (linemap_macro_loc_to_exp_point): Likewise.
        (linemap_resolve_location): Likewise.
        (linemap_unwind_toward_expansion): Likewise.
        (linemap_unwind_to_first_non_reserved_loc): Likewise.
        (linemap_expand_location): Likewise.
        (linemap_dump_location): Likewise.
        (linemap_line_start): Likewise.

2012-05-25  Dodji Seketeli  <dodji@redhat.com>

        PR preprocessor/53469
        * directives.c (do_pragma): Use the virtual location for the
        pragma token, instead of its spelling location.

2012-08-14   Diego Novillo  <dnovillo@google.com>

        Merge from cxx-conversion branch.  Configury.

        * Makefile.in: Remove all handlers of ENABLE_BUILD_WITH_CXX.
        * configure.ac: Likewise.
        * configure: Regenerate.

2012-08-14   Lawrence Crowl  <crowl@google.com>

        Merge from cxx-conversion branch.  New C++ hash table.

        * include/symtab.h (typedef struct ht hash_table): Change the typedef
        name to cpp_hash_table.  Update all users of the typedef.

2012-07-30  Laurynas Biveinis  <laurynas.biveinis@gmail.com>

        * include/line-map.h (line_map_macro): Use the "atomic" GTY option
        for the macro_locations field.

2011-06-19  Uros Bizjak  <ubizjak@gmail.com>

        * lex.c (search_line_sse42): Use __builtin_ia32_loaddqu and
        __builtin_ia32_pcmpestri128 instead of asm.

2012-06-04  Dimitrios Apostolou <jimis@gmx.net>

        * line-map.c (linemap_enter_macro): Don't zero max_column_hint in
        every macro. This improves performance by reducing the number of
        reallocations when track-macro-expansion is on.

2012-06-04  Dodji Seketeli  <dodji@redhat.com>

        PR preprocessor/53463
        * line-map.c (linemap_location_in_system_header_p): For built-in
        macro tokens, check the first expansion point location that is not
        for a token coming from a built-in macro.

2012-05-29  Joseph Myers  <joseph@codesourcery.com>

        * directives.c: Fix typos.
        * include/line-map.h: Fix typos.
        * line-map.c: Fix typos.
        * macro.c: Fix typos.

2012-05-25  Dodji Seketeli  <dodji@redhat.com>

        PR bootstrap/53459
        * lex.c (search_line_fast): Avoid unused local typedefs to simulate
        a static assertion.

2012-05-29  Dodji Seketeli  <dodji@redhat.com>

        PR preprocessor/53229
        * internal.h (cpp_reader::set_invocation_location): Remove.
        (cpp_reader::about_to_expand_macro_p): New member flag.
        * directives.c (do_pragma):  Remove Kludge as
        pfile->set_invocation_location is no more.
        * macro.c (cpp_get_token_1): Do away with the use of
        cpp_reader::set_invocation_location.  Just collect the macro
        expansion point when we are about to expand the top-most macro.
        Do not override cpp_reader::about_to_expand_macro_p.
        This fixes gcc.dg/cpp/paste12.c by making get_token_no_padding
        properly handle locations of expansion points.
        (cpp_get_token_with_location): Adjust, as
        cpp_reader::set_invocation_location is no more.
        (paste_tokens): Take a virtual location parameter for
        the LHS of the pasting operator.  Use it in diagnostics.  Update
        comments.
        (paste_all_tokens): Tighten the assert.  Propagate the location of
        the expansion point when no virtual locations are available.
        Pass the virtual location to paste_tokens.
        (in_macro_expansion_p): New static function.
        (enter_macro_context): Set the cpp_reader::about_to_expand_macro_p
        flag until we really start expanding the macro.

2012-05-16  Dodji Seketeli  <dodji@redhat.com>

        PR preprocessor/7263
        * include/cpplib.h (cpp_classify_number): Take a location
        parameter.
        * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic
        macros that take a location parameter.
        (cpp_classify_number): Take a (virtual) location parameter.  Use
        it for diagnostics.  Adjust comments.
        (eval_token): Take a location parameter.  Pass it to
        cpp_classify_number and to diagnostic routines.
        (_cpp_parse_expr): Use virtual locations of tokens when parsing
        expressions.  Pass a virtual location to eval_token and to
        diagnostic routines.

2012-05-10  Tristan Gingold  <gingold@adacore.com>

        * expr.c (interpret_float_suffix): Add a guard.

2012-05-02  Dodji Seketeli  <dodji@redhat.com>

        Properly initialize cpp_context in destringize_and_run
        * directives.c (destringize_and_run): Properly initialize the new
        context.
        * macro.c (_cpp_pop_context): Assert that we shouldn't try to pop
        the initial base context, which has the same life time as the
        current instance of cpp_file.

2012-04-30  Manuel López-Ibáñez  <manu@gcc.gnu.org>
            Dodji Seketeli  <dodji@seketeli.org>

        PR c++/52974
        * libcpp/files.c (maybe_shorter_path): New.
        (find_file_in_dir): Use it.

2012-04-30  Dodji Seketeli  <dodji@redhat.com>

        Switch -ftrack-macro-expansion=2 on by default.
        * init.c (cpp_create_reader): Switch -ftrack-macro-expansion=2 on
        by default.  Add comments.

        Strip "<built-in>" loc from displayed expansion context
        * include/line-map.h (linemap_unwind_toward_expansion): Fix typo
        in comment.
        (linemap_unwind_to_first_non_reserved_loc): Declare new function.
        * line-map.c (linemap_unwind_to_first_non_reserved_loc): Define
        new function.

        Fix expansion point loc for macro-like tokens
        * macro.c (macro_of_context): New static function.
        (_cpp_push_token_context, push_extended_tokens_context): If the
        macro argument is NULL, it means we are continuing the expansion
        of the current macro, if any.  Update comments.
        (_cpp_pop_context): Re-enable expansion of the macro only when we
        are really out of the context of the current expansion.

        Fix token pasting with -ftrack-macro-expansion
        * macro.c (paste_all_tokens): Put the token resulting from pasting
        into an extended token context with -ftrack-macro-location is in
        effect.

        Fix cpp_sys_macro_p with -ftrack-macro-expansion
        * macro.c (cpp_sys_macro_p):  Support -ftrack-macro-expansion.

2012-04-29  Dodji Seketeli  <dodji@redhat.com>

        * lex.c (lex_raw_string): Change C++ style comments into C style
        comments.
        (lex_string): Likewise.

2012-04-27   Ollie Wild  <aaw@google.com>

        * include/cpplib.h (struct cpp_options): Add new field,
        warn_literal_suffix.
        (CPP_W_LITERAL_SUFFIX): New enum.
        * init.c (cpp_create_reader): Default initialization of
        warn_literal_suffix.
        * lex.c (lex_raw_string): Treat user-defined literals which don't
        begin with '_' as separate tokens and produce a warning.
        (lex_string): Ditto.

2012-04-26  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * line-map.c (linemap_resolve_location): Synchronize comments with
        those in line-map.h.
        * include/line-map.h (linemap_resolve_location): Fix spelling in
        comment.

2012-03-22  Richard Earnshaw  <rearnsha@arm.com>

        * lex.c (search_line_fast): Provide Neon-optimized version for ARM.

2012-03-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * lex.c: Remove Solaris 8 reference.

2012-02-14  Walter Lee  <walt@tilera.com>

        * configure.ac: Require 64-bit hwint for tilegx and tilepro.
        * configure: Regenerate.

2012-01-09  Richard Guenther  <rguenther@suse.de>

        * macro.c (_cpp_builtin_macro_text): Remove unused variable map.

2012-01-09  Gary Funck  <gary@intrepid.com>

        PR preprocessor/33919
        * files.c (_cpp_get_file_name): New. Implement file name
        access function.
        * internal.h (_cpp_get_file_name): New prototype.
        * macro.c (_cpp_builtin_macro_text): Call _cpp_get_file_name()
        to use pfile->main_file in lieu of traversing INCLUDED_FROM chain.

2012-01-03  Olivier Hainque  <hainque@adacore.com>

        * system.h: Prior to #define, #undef fopen and freopen unconditionally.

2011-12-20  Joseph Myers  <joseph@codesourcery.com>

        * include/cpplib.h (CLK_GNUC1X): Change to CLK_GNUC11.
        (CLK_STDC1X): Change to CLK_STDC11.
        * init.c (lang_defaults): Update comments.
        (cpp_init_builtins): Update language tests.  Use 201112L for C11
        __STDC_VERSION__.

2011-12-20  Andreas Schwab  <schwab@linux-m68k.org>

        * configure: Regenerate.

2011-12-19  Andreas Schwab  <schwab@linux-m68k.org>

        * configure: Regenerate.

2011-12-07  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/50237
        * internal.h (_cpp_init_lexer): New prototype.
        * init.c (init_library): Call it.
        * lex.c (init_vectorized_lexer): Remove constructor attribute,
        add inline keyword.
        (HAVE_init_vectorized_lexer): Define.
        (_cpp_init_lexer): New function.

2011-12-03  Dodji Seketeli  <dodji@redhat.com>

        * macro.c (tokens_buff_remove_last_token)
        (tokens_buff_put_token_to): Add an 'inline' function specifier to
        the prototype.

2011-11-22   Diego Novillo  <dnovillo@google.com>

        * include/line-map.h (linemap_dump): Declare.
        (line_table_dump): Declare.
        * line-map.c (linemap_dump): New.
        (line_table_dump): New.

2011-11-21  Ed Smith-Rowland  <3dw4rd@verizon.net>

        PR c++/50958
        * expr.c (cpp_userdef_char_remove_type): Fix typo.

2011-11-03  Michael Matz  <matz@suse.de>

        PR bootstrap/50857
        * configure.ac: Check for -fno-exceptions -fno-rtti.
        * configure: Regenerate.
        * Makefile.in (NOEXCEPTION_FLAGS): New flag.
        (ALL_CXXFLAGS): Use it.

2011-11-02  Paolo Carlini  <paolo.carlini@oracle.com>

        * internal.h (uxstrdup, ustrchr): Return const unsigned char *.

2011-11-02  Jason Merrill  <jason@redhat.com>

        PR c++/50810
        * configure.ac: Add -Wno-narrowing to warning options.

2011-10-31  Jason Merrill  <jason@redhat.com>

        PR libstdc++/1773
        * init.c (cpp_init_builtins): Set __cplusplus for C++11.

        PR c++/50920
        * include/cpplib.h (enum c_lang): Rename CLK_CXX0X to CLK_CXX11,
        CLK_GNUCXX0X to CLK_GNUCXX11.

2011-10-26  Ed Smith-Rowland  <3dw4rd@verizon.net>

        Implement C++11 user-defined literals.
        * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix,
        cpp_userdef_string_remove_type, cpp_userdef_string_add_type,
        cpp_userdef_char_remove_type, cpp_userdef_char_add_type,
        cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New.
        (cpp_classify_number): Classify unrecognized tokens as user-defined
        literals.
        * include/cpplib.h: Add new tokens for user-defined literals.
        * init.c: Add new preprocessor flag (cxx11).
        * lex.c: (lex_string, lex_raw_string): Handle user-defined literals
        including concatenation and promotion with suffixes.

2011-10-24  Dodji Seketeli  <dodji@redhat.com>

        * line-map.c (linemap_macro_map_lookup): Fix logic.

2011-10-24  Dodji Seketeli  <dodji@redhat.com>

        * include/line-map.h (linemap_expand_location): Take a line table
        parameter.  Update comment.
        (linemap_resolve_location): Update comment.
        (linemap_expand_location_full): Remove.
        * line-map.c (linemap_resolve_location):  Handle reserved
        locations; return a NULL map in those cases.
        (linemap_expand_location): If location is reserved, return a
        zeroed expanded location.  Update comment.  Take a line table to
        assert that the function takes non-virtual locations only.
        (linemap_expand_location_full): remove.
        (linemap_dump_location): Handle the fact that
        linemap_resolve_location can return NULL line maps when the
        location resolves to a reserved location.

        * line-map.c (linemap_macro_map_lookup): Fix logic.

2011-10-22  Dodji Seketeli  <dodji@redhat.com>

        PR bootstrap/50778
        * include/internal.h (_cpp_remaining_tokens_num_in_context): Take the
        context to act upon.
        * lex.c (_cpp_remaining_tokens_num_in_context): Likewise.  Update
        comment.
        (cpp_token_from_context_at): Likewise.
        (cpp_peek_token): Use the context to peek tokens from.

2011-10-20  Dodji Seketeli  <dodji@redhat.com>

        PR bootstrap/50801
        * lex.c (_cpp_remaining_tokens_num_in_context): Fix computation of
        number of tokens.

2011-10-18  Dodji Seketeli  <dodji@redhat.com>

        PR bootstrap/50760
        * include/line-map.h (struct linemap_stats): Change the type of
        the members from size_t to long.
        * macro.c (macro_arg_token_iter_init): Unconditionally initialize
        iter->location_ptr.

2011-10-17  Dodji Seketeli  <dodji@redhat.com>

        * line-map.c (linemap_macro_map_loc_to_exp_point): Avoid setting a
        variable without using it if ENABLE_CHECKING is not defined.  Mark
        the LOCATION parameter as being unused.

2011-10-15  Tom Tromey  <tromey@redhat.com>
            Dodji Seketeli  <dodji@redhat.com>

        * include/line-map.h (struct line_maps::alloced_size_for_request):
        New member.
        * line-map.c (new_linemap): Use set->alloced_size_for_request to
        get the actual allocated size of line maps.

2011-10-15  Tom Tromey  <tromey@redhat.com>
            Dodji Seketeli  <dodji@redhat.com>

        * line-map.h (struct linemap_stats): Declare new struct.
        (linemap_get_statistics): Declare ...
        * line-map.c (linemap_get_statistics):  ... new function.
        * macro.c (num_expanded_macros_counter, num_macro_tokens_counter):
        Declare new counters.
        (enter_macro_context, replace_args): Update
        num_macro_tokens_counter.
        (cpp_get_token_1): Update num_expanded_macros_counter.

2011-10-15  Tom Tromey  <tromey@redhat.com>
            Dodji Seketeli  <dodji@redhat.com>

        * include/cpplib.h (struct cpp_options)<debug>: New struct member.
        * include/line-map.h (linemap_dump_location): Declare ...
        * line-map.c (linemap_dump_location): ... new function.

2011-10-15  Tom Tromey  <tromey@redhat.com>
            Dodji Seketeli  <dodji@redhat.com>

        * include/cpplib.h (struct cpp_options)<track_macro_expansion>:
        New option.
        * internal.h (struct macro_context): New struct.
        (enum context_tokens_kind): New enum.
        (struct cpp_context)<tokens_kind>: New member of type enum
        context_tokens_kind.
        (struct cpp_context)<macro>: Remove this.  Replace it with an enum
        of macro and  macro_context.
        (struct cpp_context)<direct_p>: Remove.
        (_cpp_remaining_tokens_num_in_context): Declare new function.
        * directives.c (destringize_and_run): Adjust.
        * lex.c (_cpp_remaining_tokens_num_in_context)
        (_cpp_token_from_context_at): Define new functions
        (cpp_peek_token): Use them.
        * init.c (cpp_create_reader): Initialize the base context to zero.
        (_cpp_token_from_context_at): Define new static function.
        (cpp_peek_token): Use new _cpp_remaining_tokens_num_in_context and
        _cpp_token_from_context_at.
        * macro.c (struct macro_arg)<virt_locs, expanded_virt_locs>: New
        members.
        (enum macro_arg_token_kind): New enum.
        (struct macro_arg_token_iter): New struct.
        (maybe_adjust_loc_for_trad_cpp, push_extended_tokens_context)
        (alloc_expanded_arg_mem, ensure_expanded_arg_room)
        (delete_macro_args, set_arg_token, get_arg_token_location)
        (arg_token_ptr_at, macro_arg_token_iter_init)
        (macro_arg_token_iter_get_token)
        (macro_arg_token_iter_get_location, macro_arg_token_iter_forward)
        (expanded_token_index, tokens_buff_new, tokens_buff_count)
        (tokens_buff_last_token_ptr, tokens_buff_put_token_to)
        (tokens_buff_add_token, tokens_buff_remove_last_token)
        (reached_end_of_context, consume_next_token_from_context): New
        static functions.
        (cpp_get_token_1): New static function. Split and extended from
        cpp_get_token.  Use reached_end_of_context and
        consume_next_token_from_context.  Unify its return point.  Move
        the location tweaking from cpp_get_token_with_location in here.
        (cpp_get_token): Use cpp_get_token_1
        (stringify_arg): Use the new arg_token_at.
        (paste_all_tokens): Support tokens coming from extended tokens
        contexts.
        (collect_args): Return the number of collected arguments, by
        parameter.  Store virtual locations of tokens that constitute the
        collected args.
        (funlike_invocation_p): Return the number of collected arguments,
        by parameter.
        (enter_macro_context): Add a parameter for macro expansion point.
        Pass it to replace_args and to the "used" cpp callback.  Get the
        number of function-like macro arguments from funlike_invocation_p,
        pass it to the new delete_macro_args to free the memory used by
        macro args.  When -ftrack-macro-expansion is in effect, for macros
        that have no arguments, create a macro map for the macro expansion
        and use it to allocate proper virtual locations for tokens
        resulting from the expansion.  Push an extended tokens context
        containing the tokens resulting from macro expansion and their
        virtual locations.
        (replace_args): Rename the different variables named 'count' into
        variables with more meaningful names.  Create a macro map;
        allocate virtual locations of tokens resulting from this
        expansion.  Use macro_arg_token_iter to iterate over tokens of a
        given macro.  Handle the case of the argument of
        -ftrack-macro-expansion being < 2.  Don't free macro arguments
        memory resulting from expand_arg here, as these are freed by the
        caller of replace_arg using delete_macro_args now.  Push extended
        token context.
        (next_context, push_ptoken_context, _cpp_push_token_context)
        (_cpp_push_text_context): Properly initialize the context.
        (expand_arg): Use the new alloc_expanded_arg_mem,
        push_extended_tokens_context, cpp_get_token_1, and set_arg_token.
        (_cpp_pop_context): Really free the memory held by the context.
        Handle freeing memory used by extended tokens contexts.
        (cpp_get_token_with_location): Use cpp_get_token_1.
        (cpp_sys_macro_p): Adjust.
        (_cpp_backup_tokens): Support the new kinds of token contexts.
        * traditional.c (recursive_macro): Adjust.

2011-10-15  Tom Tromey  <tromey@redhat>
            Dodji Seketeli  <dodji@redhat.com>

        * include/line-map.h (enum lc_reason)<LC_ENTER_MACRO>: New enum
        member.
        (MAX_SOURCE_LOCATION): New constant.
        (struct line_map_ordinary, struct line_map_macro): New structs.
        (struct line_map): Turn this into a union of the two above.  Add
        comments.
        (struct maps_info): New struct.
        (struct line_maps)<info_ordinary, info_macro>: Two new fields.
        These now carry the map information that was previously scattered
        in struct line_maps.
        (struct map_info::allocated): Fix comment.
        (MAP_START_LOCATION, ORDINARY_MAP_FILE_NAME)
        (ORDINARY_MAP_STARTING_LINE_NUMBER)
        (ORDINARY_MAP_INCLUDER_FILE_INDEX)
        (ORDINARY_MAP_IN_SYSTEM_HEADER_P)
        (ORDINARY_MAP_NUMBER_OF_COLUMN_BITS, MACRO_MAP_MACRO)
        (MACRO_MAP_NUM_MACRO_TOKENS MACRO_MAP_LOCATIONS)
        (MACRO_MAP_EXPANSION_POINT_LOCATION)
        (LOCATION_POSSIBLY_IN_MACRO_MAP_P, LINEMAPS_MAP_INFO)
        (LINEMAPS_MAPS, LINEMAPS_ALLOCATE, LINEMAPS_USED, LINEMAPS_CACHE)
        (LINEMAPS_LAST_MAP, LINEMAPS_LAST_ALLOCATED_MAP)
        (LINEMAPS_ORDINARY_MAPS, LINEMAPS_ORDINARY_ALLOCATED)
        (LINEMAPS_ORDINARY_USED, LINEMAPS_ORDINARY_CACHE)
        (LINEMAPS_LAST_ORDINARY_MAP, LINEMAPS_LAST_ALLOCATED_ORDINARY_MAP)
        (LINEMAPS_MACRO_MAPS, LINEMAPS_MACRO_ALLOCATED)
        (LINEMAPS_MACRO_USED, LINEMAPS_MACRO_CACHE)
        (LINEMAPS_LAST_MACRO_MAP, LINEMAPS_LAST_ALLOCATED_MACRO_MAP)
        (LINEMAPS_MAP_AT, LINEMAPS_ORDINARY_MAP_AT)
        (LINEMAPS_MACRO_MAP_AT): New accessors for ordinary and macro map
        information.
        (linemap_check_ordinary, linemap_assert)
        (linemap_location_before_p): New macros.
        (linemap_position_for_line_and_column)
        (linemap_tracks_macro_expansion_locs_p, linemap_add_macro_token)
        (linemap_macro_expansion_map_p)
        (linemap_macro_map_loc_to_def_point)
        (linemap_macro_map_loc_unwind_once)
        (linemap_macro_map_loc_to_exp_point, linemap_step_out_once)
        (linemap_get_source_line linemap_get_source_column)
        (linemap_map_get_macro_name, linemap_get_file_path)
        (linemap_location_in_system_header_p)
        (linemap_location_from_macro_expansion_p): Declare new functions.
        (SOURCE_LINE, SOURCE_COLUMN, LAST_SOURCE_LINE_LOCATION)
        (LINEMAP_FILE, LINEMAP_LINE, LINEMAP_SYSP): Assert that this
        accessors act on ordinary maps only.
        (INCLUDED_FROM): Return NULL for main files; use the new
        accessors.
        (LINEMAP_POSITION_FOR_COLUMN): Use the new accessors.
        (struct expanded_location): Move here from gcc/input.h
        (linemap_resolve_location, linemap_expand_location)
        (linemap_expand_location_full): Declare new functions.
        * line-map.c: Include cpplib.h, internal.h
        (linemap_enter_macro, linemap_add_macro_token)
        (linemap_get_expansion_line, linemap_get_expansion_filename): New
        functions that are private to libcpp.
        (linemap_assert): New macro.
        (linemap_macro_loc_to_exp_point, linemap_macro_loc_to_exp_point)
        (linemap_macro_loc_unwind, linemap_macro_map_loc_to_def_point)
        (linemap_macro_map_loc_unwind_toward_spelling)
        (linemap_macro_map_loc_to_exp_point)
        (first_map_in_common_1, first_map_in_common): New static
        functions.
        (new_linemap): Define new static functions.  Extracted and
        enhanced from ...
        (linemap_add): ... here.  Use linemap_assert in lieu of abort
        previously.
        (linemap_tracks_macro_expansion_locs_p)
        (linemap_add_macro_token, linemap_macro_expansion_map_p)
        (linemap_check_ordinary, linemap_macro_map_loc_to_exp_point)
        (linemap_macro_map_loc_to_def_point)
        (linemap_macro_map_loc_unwind_once)
        (linemap_step_out_once, linemap_map_get_index)
        (linemap_get_source_line,linemap_get_source_column)
        (linemap_get_file_path, linemap_map_get_macro_name)
        (linemap_location_in_system_header_p)
        (linemap_location_originated_from_system_header_p)
        (linemap_location_from_macro_expansion_p)
        (linemap_tracks_macro_expansion_locs_p)
        (linemap_resolve_location, linemap_expand_location)
        (linemap_expand_location_full)
        (linemap_tracks_macro_expansion_locs_p)
        (linemap_position_for_line_and_column, linemap_compare_locations):
        Define new public functions.
        (linemap_init): Initialize ordinary and macro maps information in
        the map set.
        (linemap_check_files_exited): Use the new accessors.
        (linemap_free): Remove this dead code.
        (linemap_line_start): Assert this uses an ordinary map.  Adjust to
        use the new ordinary map accessors and data structures.  Don't
        overflow past the lowest possible macro token's location.
        (linemap_position_for_column): Assert the ordinary maps of the map
        set are really ordinary.  Use ordinary map accessors.
        (linemap_lookup): Keep the same logic but generalize to allow
        lookup of both ordinary and macro maps.  Do not crash when called
        with an empty line table.
        * directives-only.c (_cpp_preprocess_dir_only): Adjust to use the
        new API of line-map.h.
        * directives.c (start_directive, do_line, do_linemarker)
        (do_linemarker): Likewise.
        * files.c (_cpp_find_file, _cpp_stack_include, open_file_failed)
        (make_cpp_dir, cpp_make_system_header): Likewise.
        * init.c (cpp_read_main_file): Likewise.
        * internal.h (CPP_INCREMENT_LINE): Likewise.
        (linemap_enter_macro, linemap_add_macro_token)
        (linemap_get_expansion_line, linemap_get_expansion_filename): New
        functions private to libcpp.
        * lex.c (_cpp_process_line_notes, _cpp_skip_block_comment)
        (skip_line_comment, skip_whitespace, lex_raw_string)
        (_cpp_lex_direct): Likewise.
        * macro.c (_cpp_builtin_macro_text): Likewise.
        (_cpp_aligned_alloc): Initialize the new name member of the macro.
        * traditional.c (copy_comment, _cpp_scan_out_logical_line):
        Likewise.
        * errors.c (cpp_diagnostic): Adjust to new linemap API.

2011-08-28  Dodji Seketeli  <dodji@redhat.com>

        * line-map.c (linemap_add): Assert that reason must not be
        LC_RENAME when called for the first time on a "main input file".

2011-08-22  Gabriel Charette  <gchare@google.com>

        * init.c (cpp_create_reader): Inititalize forced_token_location_p.
        * internal.h (struct cpp_reader): Add field forced_token_location_p.
        * lex.c (_cpp_lex_direct): Use forced_token_location_p.
        (cpp_force_token_locations): New.
        (cpp_stop_forcing_token_locations): New.

2011-08-18  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR libstdc++/1773
        * init.c (cpp_init_builtins): Define __cplusplus 19971L.

2011-08-18  Joseph Myers  <joseph@codesourcery.com>

        * include/cpplib.h (struct cpp_options): Fix typo.

2011-08-18  Joseph Myers  <joseph@codesourcery.com>

        * include/cpplib.h (struct cpp_options): Add rliterals.
        * init.c  (struct lang_flags, lang_defaults): Add rliterals.
        (cpp_set_lang): Set rliterals option.
        (cpp_init_builtins): Define __STDC_UTF_16__ and __STDC_UTF_32__.
        * lex.c (_cpp_lex_direct): Only accept raw strings if rliterals.

2011-08-15  Gabriel Charette  <gchare@google.com>

        * include/line-map.h (LINEMAP_POSITION_FOR_COLUMN): Remove.
        Update all users to use linemap_position_for_column instead.

2011-07-28  Gabriel Charette  <gchare@google.com>

        * include/line-map.h (struct line_maps):
        Remove unused field last_listed. Update all users.

2011-07-28  H.J. Lu  <hongjiu.lu@intel.com>

        * configure.ac: Set need_64bit_hwint to yes for x86 targets.
        * configure: Regenerated.

2011-07-25  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * system.h [__cplusplus]: Wrap C function declarations in extern "C".

2011-07-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
            Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR bootstrap/49794
        * configure.ac: Test AM_ICONV with CXX.
        * configure: Regenerate.
        * system.h (HAVE_DESIGNATED_INITIALIZERS): Never define for C++.

2011-07-15  Dodji Seketeli  <dodji@redhat.com>

        * directives.c (struct if_stack): Use source_location as type
        here.
        * include/cpplib.h (struct cpp_callbacks)<include, define, undef,
        indent, def_pragma, used_define, used_undef>: Properly use
        source_location as parameter type, rather than unsigned int.

2011-07-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR target/39150
        * configure.ac (host_wide_int): Handle x86_64-*-solaris2.1[0-9]
        like i[34567]86-*-solaris2.1[0-9]*.
        * configure: Regenerate.

2011-06-16  Jason Merrill  <jason@redhat.com>

        PR c++/45399
        * lex.c (lex_raw_string): Don't check for embedded NUL.

2011-06-06  Dodji Seketeli  <dodji@redhat.com>

        PR preprocessor/48532
        * directives.c (do_pragma): Don't forget the invocation location
        when parsing the pragma name of a namespaced pragma directive.

2011-05-29  John Tytgat  <John.Tytgat@aaug.net>

        * files.c (read_file_guts): Add test on non-zero value of S_ISREG.

2011-05-22  Uros Bizjak  <ubizjak@gmail.com>

        PR target/49104
        * lex.c (init_vectorized_lexer): Do not set "minimum" when __3dNOW_A__
        is defined.  Check bit_MMXEXT and bit_CMOV to use search_line_mmx.

2011-04-25  Jan Kratochvil  <jan.kratochvil@redhat.com>

        * system.h (ENUM_BITFIELD): Remove.

2011-04-24  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/48740
        * lex.c (lex_raw_string): When raw string ends with
        ??) followed by raw prefix and ", ensure it is preprocessed
        with ??) rather than ??].

2011-04-20  Jim Meyering  <meyering@redhat.com>

        * files.c (destroy_cpp_file): Remove useless if-before-free.
        * init.c (cpp_destroy): Likewise.
        * macro.c (replace_args): Likewise.
        * pch.c (cpp_valid_state): Likewise.

2011-03-25  Kai Tietz  <ktietz@redhat.com>

        * files.c (file_hash_eq): Use filename_cmp
        instead of strcmp.
        (nonexistent_file_hash_eq): Likewise.
        (remap_filename): Likewise.
        Handle absolute DOS-path,
        (append_file_to_dir): Check for IS_DIR_SEPARATOR
        instead of slash.
        (read_name_map): Likewise.
        * linemap.c (linemap_add): Use filename_cmp
        instead of strcmp.
        * mkdeps.c (apply_vpath): Use filename_ncmp
        instead of strncmp.
        (deps_restore): Use filename_cmp instead of
        strcmp.
        * init.c (read_original_directory): Use
        IS_DIR_SEPARATOR instead of checking for slash.

2011-03-21  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR preprocessor/48192
        * directives.c (do_ifdef): Do not consider conditional macros as
        being defined.
        (do_ifndef): Ditto.
        * expr.c (parse_defined): Ditto.

2011-03-18  Richard Henderson  <rth@redhat.com>

        PR bootstrap/45381
        * lex.c [ALTIVEC] (search_line_fast): Require gcc version 4.5.

2011-11-04  Eric Botcazou  <ebotcazou@adacore.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/39213
        * directives.c (end_directive): Call _cpp_remove_overlay for deferred
        pragmas as well in traditional mode.

2010-11-17  Ian Lance Taylor  <iant@google.com>

        PR bootstrap/45538
        * configure.ac: Use AC_USE_SYSTEM_EXTENSIONS.  Remove switch of
        AC_LANG based on ENABLE_BUILD_WITH_CXX.

2010-11-16  Kai Tietz  <kai.tietz@onevision.com>

        PR preprocessor/17349
        * lex.c (save_comment): Handle in argument passing c++
        comments special.

2010-11-02  Ian Lance Taylor  <iant@google.com>

        * configure.ac: Use AC_SYS_LARGEFILE.
        * configure: Rebuild.
        * config.in: Rebuild.

2010-10-19  Basile Starynkevitch  <basile@starynkevitch.net>

        * line-map.h (source_location): Remove obsolete comment
        mentioning location_s.

2010-09-29  Kai Tietz  <kai.tietz@onevision.com>

        PR preprocessor/45362
        * directives.c (cpp_pop_definition): Make static.
        (do_pragma_push_macro): Reworked to store text
        definition.
        (do_pragma_pop_macro): Add free text definition.
        (cpp_push_definition): Removed.
        * include/cpplib.h (cpp_push_definition): Removed.
        (cpp_pop_definition): Likewise.
        * internal.h (def_pragma_macro): Remove member 'value'
        and add new members 'definition', 'line',
        'syshdr', 'sued' and 'is_undef'.
        * pch.c (_cpp_restore_pushed_macros): Rework to work
        on text definition and store additional macro flags.
        (_cpp_save_pushed_macros): Likewise.

2010-09-29  Joseph Myers  <joseph@codesourcery.com>

        * include/cpplib.h (cpp_options): Rename warn_deprecated,
        warn_traditional, warn_long_long and pedantic.
        * directives.c (directive_diagnostics, _cpp_handle_directive):
        Update names of cpp_options members.
        * expr.c (cpp_classify_number, eval_token): Update names of
        cpp_options members.
        * init.c (cpp_create_reader, post_options): Update names of
        cpp_options members.
        * internal.h (CPP_PEDANTIC, CPP_WTRADITIONAL): Update names of
        cpp_options members.
        * macro.c (parse_params): Update names of cpp_options members.

2010-09-15  Ian Lance Taylor  <iant@google.com>

        * init.c: Fix type name in comment.

2010-08-31  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/45457
        * expr.c (parse_defined): Call pfile->cb.user_builtin_macro hook if
        needed.
        * directives.c (do_ifdef, do_ifndef): Likewise.

2010-08-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * system.h [HAVE_INTTYPES_H]: Include inttypes.h.

2010-08-24  Richard Henderson  <rth@redhat.com>

        PR bootstrap/45376
        * configure.ac (HAVE_SSE4): New check.
        * configure, config.in: Rebuild.
        * lex.c (search_line_sse42): Omit if !HAVE_SSE4.

2010-08-24  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * lex.c [__sun__ && __svr4__]: Disable init_vectorized_lexer
        etc. on Solaris 2/x86.

2010-08-21  Richard Henderson  <rth@redhat.com>
            Andi Kleen <ak@linux.intel.com>
            David S. Miller  <davem@davemloft.net>

        * configure.ac (AC_C_BIGENDIAN, AC_TYPE_UINTPTR_T): New tests.
        (ssize_t): Check via AC_TYPE_SSIZE_T instead of AC_CHECK_TYPE.
        (ptrdiff_t): Check via AC_CHECK_TYPE.
        * config.in, configure: Rebuild.
        * system.h: Include stdint.h, if available.
        * lex.c (WORDS_BIGENDIAN): Provide default.
        (acc_char_mask_misalign, acc_char_replicate, acc_char_cmp,
        acc_char_index, search_line_acc_char, repl_chars, search_line_mmx,
        search_line_sse2, search_line_sse42, init_vectorized_lexer,
        search_line_fast): New.
        (_cpp_clean_line): Use search_line_fast.  Restructure the fast
        loop to make it clear when we're leaving the loop.  Stay in the
        fast loop for non-trigraph '?'.

2010-06-11  Jakub Jelinek  <jakub@redhat.com>

        * include/cpplib.h (struct cpp_callbacks): Add user_builtin_macro
        callback.
        (enum cpp_builtin_type): Add BT_FIRST_USER and BT_LAST_USER.
        (cpp_macro_definition): Remove const qual from second argument.
        * macro.c (enter_macro_context): Call user_builtin_macro callback for
        NODE_BUILTIN !NODE_USED macros.
        (warn_of_redefinition): Likewise.  Remove const qual from second
        argument.
        (cpp_macro_definition): Likewise.
        * pch.c (write_macdef, save_macros): Call user_builtin_macro callback
        for NODE_BUILTIN !NODE_USED macros.

2010-06-10  Joseph Myers  <joseph@codesourcery.com>

        * include/cpplib.h (struct cpp_options): Remove show_column.
        * init.c (cpp_create_reader, post_options): Don't set show_column.

2010-06-09  Joern Rennecke  <joern.rennecke@embecosm.com>

        PR bootstrap/44432
        * configure.ac: Before using ZW_PROG_COMPILER_DEPENDENCIES for C++,
        check that C++ compiler works.
        * configure: Regenerate.

2010-06-08  Laurynas Biveinis  <laurynas.biveinis@gmail.com>

        * include/symtab.h (ht_identifier_ptr): New.

2010-06-03  Joern Rennecke <joern.rennecke@embecosm.com>
            Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR bootstrap/42798
        * configure.ac: Check for declaration of 'basename(char *)'.
        * configure: Regenerate.
        * config.in: Regenerate.

2010-04-25  Joseph Myers  <joseph@codesourcery.com>

        * include/cpplib.h (enum c_lang): Add CLK_GNUC1X and CLK_STDC1X.
        * init.c (lang_defaults): Add entries for new language variants.
        (cpp_init_builtins): Define __STDC_VERSION__ to 201000L for C1X
        variants.

2010-04-09  Manuel López-Ibáñez <manu@gcc.gnu.org>

        PR cpp/43195
        * files.c (report_missing_guard): Test for #pragma once.

2010-04-07  Simon Baldwin  <simonb@google.com>

        * directives.c (do_diagnostic): Add warning reason argument,
        call appropriate error reporting function for code.
        (directive_diagnostics): Call specific warning functions with
        warning reason where appropriate.
        (do_error, do_warning, do_pragma_dependency): Add warning reason
        argument to do_diagnostic calls.
        * macro.c (_cpp_warn_if_unused_macro, enter_macro_context,
        _cpp_create_definition): Call specific warning functions with
        warning reason where appropriate.
        * Makefile.in: Add new diagnostic functions to gettext translations.
        * include/cpplib.h (struct cpp_callbacks): Add warning reason code
        to error callback.
        (CPP_DL_WARNING, CPP_DL_WARNING_SYSHDR, CPP_DL_PEDWARN, CPP_DL_ERROR,
        CPP_DL_ICE, CPP_DL_NOTE, CPP_DL_FATAL): Replace macros with enums.
        (CPP_W_NONE, CPP_W_DEPRECATED, CPP_W_COMMENTS,
        CPP_W_MISSING_INCLUDE_DIRS, CPP_W_TRIGRAPHS, CPP_W_MULTICHAR,
        CPP_W_TRADITIONAL, CPP_W_LONG_LONG, CPP_W_ENDIF_LABELS,
        CPP_W_NUM_SIGN_CHANGE, CPP_W_VARIADIC_MACROS,
        CPP_W_BUILTIN_MACRO_REDEFINED, CPP_W_DOLLARS, CPP_W_UNDEF,
        CPP_W_UNUSED_MACROS, CPP_W_CXX_OPERATOR_NAMES, CPP_W_NORMALIZE,
        CPP_W_INVALID_PCH, CPP_W_WARNING_DIRECTIVE): New enums for cpp
        warning reason codes.
        (cpp_warning, cpp_pedwarning, cpp_warning_syshdr,
        cpp_warning_with_line, cpp_pedwarning_with_line,
        cpp_warning_with_line_syshdr): New specific error reporting functions.
        * pch.c (cpp_valid_state): Call specific warning functions with
        warning reason where appropriate.
        * errors.c (cpp_diagnostic, cpp_diagnostic_with_line): New central
        diagnostic handlers.
        (cpp_warning, cpp_pedwarning, cpp_warning_syshdr,
        cpp_warning_with_line, cpp_pedwarning_with_line,
        cpp_warning_with_line_syshdr): New specific error reporting functions.
        * expr.c (cpp_classify_number, eval_token, num_unary_op): Call
        specific warning functions with warning reason where appropriate.
        * lex.c (_cpp_process_line_notes, _cpp_skip_block_comment,
        warn_about_normalization, lex_identifier_intern, lex_identifier,
        _cpp_lex_direct): Ditto.
        * charset.c (_cpp_valid_ucn, convert_hex, convert_escape,
        narrow_str_to_charconst): Ditto.

2010-04-06  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/43642
        * lex.c (lex_raw_string): Change type of TYPE variable to
        unsigned char.

2010-04-02  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * aclocal.m4: Regenerate.

2010-03-29  Jason Merrill  <jason@redhat.com>

        More N3077 raw string changes
        * charset.c (cpp_interpret_string): Don't transform UCNs in raw
        strings.
        * lex.c (bufring_append): Split out from...
        (lex_raw_string): ...here.  Undo trigraph and line splicing
        transformations.  Do process line notes in multi-line literals.
        (_cpp_process_line_notes): Ignore notes that were already handled.

        Some raw string changes from N3077
        * charset.c (cpp_interpret_string): Change inner delimiters to ().
        * lex.c (lex_raw_string): Likewise.  Also disallow '\' in delimiter.

2010-02-11  Jakub Jelinek  <jakub@redhat.com>

        * init.c (read_original_filename): Don't call read_original_directory
        if _cpp_handle_directive returns 0.

2010-01-01  Joseph Myers  <joseph@codesourcery.com>

        PR preprocessor/41947
        * expr.c (cpp_classify_number): Give error for hexadecimal
        floating-point constant with no digits before or after point.

2009-11-20  Arnaud Charlet  <charlet@adacore.com>

        * macro.c (enter_macro_context): Call cb.used callback if defined.
        * directives.c (do_idef, do_ifndef): Ditto.
        * include/cpplib.h (struct cpp_callbacks): Add used callback.

2009-11-11  Kai Tietz  <kai.tietz@onevision.com>

        * directives.c (do_pragma_push_macro): New pragma handler.
        (do_pragma_pop_macro): Likewise.
        (_cpp_init_internal_pragmas): Add push_macro and
        pop_macro handler to internal pragmas.
        (lex_macro_node_from_str): Removed.
        (cpp_push_definition): Replace lex_macro_node_from_str
        by _cpp_lex_identifier.
        (cpp_pop_definition): Likewise.
        * internal.h (_cpp_lex_identifier): New prototype.
        (def_pragma_macro): New structure.
        (cpp_reader): New member pushed_macros.
        * lex.c (_cpp_lex_identifier): New function.
        (lex_identifier_intern): New function.
        * init.c (cpp_create_reader): Initialize pushed_macros
        member.
        (cpp_destroy): Free elements in pushed_macros member.
        * pch.c (_cpp_save_pushed_macros): New function.
        (_cpp_restore_pushed_macros): Likewise.
        (_cpp_restore_pushed_macros): Use _cpp_save_pushed_macros.
        (cpp_read_state): Use _cpp_restore_pushed_macros.

2009-10-19  Jakub Jelinek  <jakub@redhat.com>

        * charset.c (cpp_init_iconv): Initialize utf8_cset_desc.
        (_cpp_destroy_iconv): Destroy utf8_cset_desc, char16_cset_desc
        and char32_cset_desc.
        (converter_for_type): Handle CPP_UTF8STRING.
        (cpp_interpret_string): Handle CPP_UTF8STRING and raw-strings.
        * directives.c (get__Pragma_string): Handle CPP_UTF8STRING.
        (parse_include): Reject raw strings.
        * include/cpplib.h (CPP_UTF8STRING): New token type.
        * internal.h (struct cpp_reader): Add utf8_cset_desc field.
        * lex.c (lex_raw_string): New function.
        (lex_string): Handle u8 string literals, call lex_raw_string
        for raw string literals.
        (_cpp_lex_direct): Call lex_string even for u8" and {,u,U,L,u8}R"
        sequences.
        * macro.c (stringify_arg): Handle CPP_UTF8STRING.

2009-10-14  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/41543
        * include/line-map.h (RESERVED_LOCATION_COUNT): Define.
        * line-map.c (linemap_init): Initialize highest_location and
        highest_line to RESERVED_LOCATION_COUNT-1 instead of 0.

2009-10-09  Jason Merrill  <jason@redhat.com>

        * charset.c (_cpp_valid_ucn): Update C++0x restrictions.

2009-10-09  Neil Vachharajani <nvachhar@google.com>

        * directives.c (DIRECTIVE_TABLE): Remove DEPRECATED from ident and
        sccs.

2009-09-23  Loren J. Rittle  <ljrittle@acm.org>

        * configure.ac (AC_CHECK_HEADERS after AC_LANG(C++)): Add sys/stat.h.
        * configure: Rebuilt.

2009-09-22  Richard Guenther  <rguenther@suse.de>

        PR pch/38987
        * files.c (pch_open_file): Disallow non-toplevel PCH inclusion.

2009-09-18  Chris Demetriou  <cgd@google.com>

        PR preprocessor/28435:
        * include/cpplib.h (struct cpp_options): Add new member
        deps.need_preprocessor_output.
        * files.c (open_file_failed): If preprocessor output is needed
        always report an error.

2009-09-13  Kai Tietz  <kai.tietz@onevision.com>

        * configure.ac: Set for i?86-w64-mingw*
        need_64bit_hwint to yes.
        * configure: Regenerated.

2009-09-10  Jason Merrill  <jason@redhat.com>

        * directives.c (cpp_define): constify.

2009-09-02  Ian Lance Taylor  <iant@google.com>

        * macro.c (stringify_arg): Escape CPP_WCHAR tokens.

2009-08-24  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * configure.ac (AC_PREREQ): Bump to 2.64.

2009-08-22  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * aclocal.m4: Regenerate.
        * config.in: Regenerate.
        * configure: Regenerate.

2009-08-17  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/41067:
        * charset.c (convert_escape): Add missing ":" to error text.

2009-07-27  Douglas B Rupp  <rupp@gnat.com>

        * include/cpplib.h (INO_T_CPP): New macro.
        (struct cpp_dir): Use it.

2009-07-20  Jerry Quinn  <jlquinn@optonline.net>

        PR regression/40800
        * configure.ac: Use = instead of == for testing
        ENABLE_BUILD_WITH_CXX.
        * configure: Rebuild.

2009-07-17  Jerry Quinn  <jlquinn@optonline.net>

        * directives.c (do_linemarker, do_line): Use CPP_STRING for
        ignored enum value.
        * files.c (find_file_in_dir): Add cast from void* to char*.
        * symtab.c (ht_lookup_with_hash): Add cast from void* to char*.
        * Makefile.in: (WARN_CFLAGS): Use general and C-specific
        warnings.
        (CXX, CXXFLAGS, WARN_CXXFLAGS, ALL_CXXFLAGS,
        ENABLE_BUILD_WITH_CXX, CCDEPMODE, CXXDEPMODE, COMPILER,
        COMPILER_FLAGS): New.
        (DEPMODE): Set from CCDEPMODE or CXXDEPMODE.
        (COMPILE.base): Use COMPILER instead of CC.  Use COMPILER_FLAGS
        instead of ALL_CFLAGS.
        * configure.ac: Invoke AC_PROG_CXX.  Separate C-specific warnings
        from other warnings.  Add -Wc++-compat to C-specific warnings.
        Check for --enable-build-with-cxx.  Set and substitute
        ENABLE_BUILD_WITH_CXX.  Invoke ZW_PROG_COMPILER_DEPENDENCIES
        according to ENABLE_BUILD_WITH_CXX.  Invoke AC_LANG before
        AC_CHECK_HEADERS.
        * configure: Rebuild.
        * include/cpp-id-data.h: Remove extern "C".
        * include/line-map.h: Likewise.
        * include/mkdeps.h: Likewise.
        * include/symtab.h: Likewise.
        * internal.h: Likewise.

2009-06-23  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * directives.c (parse_include): Add location argument. Update all
        calls.
        (parse_answer): Likewise.
        (do_include_common): Error with exact location.
        (parse_assertion): Likewise.

2009-06-18  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * expr.c (num_div_op): Take explicit location.

2009-06-17  Ian Lance Taylor  <iant@google.com>

        * include/cpplib.h (progname): Don't declare.

2009-06-12  Ian Lance Taylor  <iant@google.com>

        * include/cpplib.h (struct cpp_options): Add
        warn_cxx_operator_names field.
        (NODE_WARN_OPERATOR): Define.
        (struct cpp_hashnode): Increase flags field to 10 bits, decrease
        type to 6 bits.
        * init.c (mark_named_operators): Add flags parameter.
        (cpp_post_options): Pick flags value to pass to
        mark_named_operators.
        * lex.c (lex_identifier): If NODE_WARN_OPERATOR is set, warn that
        identifier is an operator name in C++.

2009-06-01  Aldy Hernandez  <aldyh@redhat.com>

        * include/line-map.h (LAST_SOURCE_COLUMN): New.

2009-06-01  Ian Lance Taylor  <iant@google.com>

        * include/cpp-id-data.h: Add extern "C".
        * include/line-map.h: Likewise.
        * include/mkdeps.h: Likewise.
        * include/symtab.h: Likewise.
        * internal.h: Likewise.

2009-05-15  Ian Lance Taylor  <iant@google.com>

        * include/cpplib.h (enum cpp_builtin_type): Rename from enum
        builtin_type.  Change all uses.

2009-05-14  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR cpp/36674
        * directives (do_linemarker): Compensate for the increment in
        location that occurs when we reach the end of line.
        * files (_cpp_stack_include): Mention _cpp_find_file in the
        comment.

2009-05-10  Joseph Myers  <joseph@codesourcery.com>

        * include/cpplib.h (enum cpp_token_fld_kind): Add
        CPP_TOKEN_FLD_TOKEN_NO.
        (struct cpp_macro_arg, struct cpp_identifier): Define.
        (union cpp_token_u): Use struct cpp_identifier for identifiers.
        Use struct cpp_macro_arg for macro arguments.  Add token_no for
        CPP_PASTE token numbers.
        * directives.c (_cpp_handle_directive, lex_macro_node, do_pragma,
        do_pragma_poison, parse_assertion): Use val.node.node in place of
        val.node.
        * expr.c (parse_defined, eval_token): Use val.node.node in place
        of val.node.
        * lex.c (cpp_ideq, _cpp_lex_direct, cpp_token_len,
        cpp_spell_token, cpp_output_token, _cpp_equiv_tokens,
        cpp_token_val_index): Use val.macro_arg.arg_no or val.token_no in
        place of val.arg_no.  Use val.node.node in place of val.node.
        * macro.c (replace_args, cpp_get_token, parse_params,
        lex_expansion_token, create_iso_definition, cpp_macro_definition):
        Use val.macro_arg.arg_no or val.token_no in place of val.arg_no.
        Use val.node.node in place of val.node.

2009-05-03  Joseph Myers  <joseph@codesourcery.com>

        * charset.c (one_utf8_to_cppchar): Correct mask used for 5-byte
        UTF-8 sequences.

2009-04-25  Joseph Myers  <joseph@codesourcery.com>

        PR preprocessor/39559
        * expr.c (cpp_interpret_integer): Use a pedwarn for decimal
        constants larger than intmax_t in C99 mode.

2009-04-21  Taras Glek <tglek@mozilla.com>

        * include/cpp-id-data.h: Update GTY annotations to new syntax.
        * include/cpplib.h: Likewise.
        * include/line-map.h: Likewise.
        * include/symtab.h: Likewise.

2009-04-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/14875
        * lex.c (cpp_type2name): Take a flags parameter. Call
        cpp_named_operator2name for named operators and cpp_digraph2name
        for digraphs.
        (cpp_digraph2name): New.
        (cpp_spell_token): Use it.
        (cpp_output_token): Likewise.
        * include/cpplib.h (cpp_type2name): Update declaration.
        * init.c (cpp_named_operator2name): New.
        * internal.h (cpp_named_operator2name): Declare.

2009-04-21  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/13358
        * init.c (cpp_create_reader): Wlong_long is disabled by default.
        * expr.c (cpp_classify_number): Give different messages for C and
        C++ front-ends.

2009-04-19  Joseph Myers  <joseph@codesourcery.com>

        PR preprocessor/20078
        * include/cpp-id-data.h (struct cpp_macro): Add extra_tokens
        field.
        * include/cpplib.h (SP_DIGRAPH, SP_PREV_WHITE): Define.
        (struct cpp_token): Change flags to unsigned short.
        * lex.c (_cpp_lex_direct): Initialize arg_no for CPP_PASTE tokens.
        (_cpp_equiv_tokens): Check arg_no for CPP_PASTE tokens.
        (cpp_token_val_index): Return CPP_TOKEN_FLD_ARG_NO for CPP_PASTE
        tokens.
        * macro.c (macro_real_token_count): New.
        (enter_macro_context, replace_args): Use macro_real_token_count.
        (create_iso_definition): Record whitespace surrounding and digraph
        spelling of # and ## tokens using SP_PREV_WHITE and SP_DIGRAPH.
        Set extra_tokens and save CPP_PASTE tokens with arg_no set for
        multiple consecutive ## tokens.
        (_cpp_create_definition): Initialize extra_tokens.
        (cpp_macro_definition): Use macro_real_token_count.

2009-04-18  Joseph Myers  <joseph@codesourcery.com>

        * directives.c (parse_include): Pass true to check_eol.

2009-04-18  Joseph Myers  <joseph@codesourcery.com>

        PR preprocessor/39646
        * include/line-map.h (enum lc_reason): Add LC_RENAME_VERBATIM.
        * line-map.c (linemap_add): Handle LC_RENAME_VERBATIM.
        * directives.c (do_line, do_linemarker): Use LC_RENAME_VERBATIM in
        place of LC_RENAME.

2009-04-18  Joseph Myers  <joseph@codesourcery.com>

        PR preprocessor/39647
        * directives.c (check_eol): Add parameter expand.
        (do_undef, parse_include, do_line, do_linemarker, do_ident,
        do_pragma_once, do_pragma_system_header, do_ifdef, do_ifndef,
        do_else, do_endif, do_assert, do_unassert): All callers changed.
        Pass true from do_line, false elsewhere.

2009-04-12  Joseph Myers  <joseph@codesourcery.com>

        PR preprocessor/31869
        * macro.c (stringify_arg): Handle NULL source token in padding
        token where previous padding token did not have source token with
        preceding whitespace.

2009-04-09  Jakub Jelinek  <jakub@redhat.com>

        * Makefile.in: Change copyright header to refer to version
        3 of the GNU General Public License and to point readers at the
        COPYING3 file and the FSF's license web page.
        * charset.c: Likewise.
        * directives-only.c: Likewise.
        * directives.c: Likewise.
        * errors.c: Likewise.
        * expr.c: Likewise.
        * files.c: Likewise.
        * identifiers.c: Likewise.
        * include/cpp-id-data.h: Likewise.
        * include/cpplib.h: Likewise.
        * include/line-map.h: Likewise.
        * include/mkdeps.h: Likewise.
        * include/symtab.h: Likewise.
        * init.c: Likewise.
        * internal.h: Likewise.
        * lex.c: Likewise.
        * line-map.c: Likewise.
        * macro.c: Likewise.
        * makeucnid.c: Likewise.
        * mkdeps.c: Likewise.
        * pch.c: Likewise.
        * symtab.c: Likewise.
        * system.h: Likewise.
        * traditional.c: Likewise.
        * ucnid.tab: Likewise.
        * ucnid.h: Regenerate.

2009-04-01  Janis Johnson  <janis187@us.ibm.com>

        PR c/39027
        * include/cpplib.h (CPP_N_DEFAULT): Define.
        * expr.c (interpret_float_suffix): Recognize d or D for double,
        return new value for default.
        (cpp_classify_number): Issue pedwarn for use of d or D in suffix.

        PR c/33466
        * expr.c (interpret_float_suffix): Reject invalid suffix that uses
        letters from decimal float and fixed-point suffixes.

2009-03-31  Joseph Myers  <joseph@codesourcery.com>

        PR preprocessor/15638
        * files.c (_cpp_find_file): Call open_file_failed after diagnosing
        invalid PCH.
        (open_file_failed): Make error for missing file fatal.
        * include/cpplib.h (CPP_DL_FATAL): Define.

2009-03-30  Sergiy Vyshnevetskiy  <serg@vostok.net>

        PR preprocessor/31932:
        * internal.h: Don't mention HAVE_ICONV_H.
        * configure, config.in: Rebuild.
        * configure.ac: Don't check for iconv.h.

2009-03-30  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/39512:
        * line-map.c (linemap_init): Initialize 'reallocator' field.

2009-03-30  Jakub Jelinek  <jakub@redhat.com>

        PR target/39558
        * macro.c (cpp_get_token): If macro_to_expand returns NULL
        and used some tokens, add CPP_PADDING before next token.

2009-03-29  Joseph Myers  <joseph@codesourcery.com>

        PR preprocessor/34695
        * makedepend.c: Remove.
        * Makefile.in (makedepend_OBJS, makedepend$(EXEEXT)): Remove.
        (all, clean, TAGS_SOURCES, include): Remove makedepend handling.
        * directives.c (cpp_errors): Remove.
        * errors.c (print_location, _cpp_begin_message, v_message):
        Remove.
        (cpp_error, cpp_error_with_line): Always use error callback.
        (cpp_error, cpp_error_with_line, cpp_errno): Return bool.
        * include/cpplib.h (cpp_options): Remove pedantic_errors,
        inhibit_warnings, warn_system_headers, inhibit_errors,
        warnings_are_errors, client_diagnostic.
        (cpp_callbacks): Add extra arguments to error callback; make it
        return bool.
        (cpp_finish): Return void.
        (cpp_destroy): Remove inaccurate comment about return value.
        (cpp_errors, CPP_DL_EXTRACT, CPP_DL_WARNING_P): Remove.
        (CPP_DL_NOTE): Define.
        * include/line-map.h (linemap_print_containing_files): Remove.
        * init.c (cpp_finish): Do not check for or return number of
        errors.
        * internal.h (cpp_reader): Remove errors field.
        * line-map.c (linemap_print_containing_files): Remove.
        * macro.c (_cpp_create_definition): Use CPP_DL_NOTE for message
        about previous definition.  Only emit it if previous diagnostic
        was emitted.

2009-03-28  Joseph Myers  <joseph@codesourcery.com>

        * Makefile.in (po/$(PACKAGE).pot): Use $(mkinstalldirs) not
        mkinstalldirs.

2009-03-18  Jakub Jelinek  <jakub@redhat.com>

        * include/cpplib.h (struct cpp_dir): Reorder fields for 64-bit hosts.

2009-02-21  Joseph Myers  <joseph@codesourcery.com>

        * lex.c (lex_string): Return a CPP_LESS token for missing '>' in a
        header name.
        (_cpp_lex_direct): Handle this.

2009-02-15  Richard Guenther  <rguenther@suse.de>

        Revert last change.

2009-02-13  Richard Guenther  <rguenther@suse.de>

        * configure.ac: Enable LFS.
        * configure: Re-generate.
        * config.in: Likewise.

2009-01-05  Ben Elliston  <bje@au.ibm.com>

        * Makefile.in (.po.gmo): Use mkinstalldirs, not test -d || mkdir.
        (.po.pox): Likewise.
        (po/$(PACKAGE).pot): Likewise.

2008-12-10  Alexandre Oliva  <aoliva@redhat.com>

        PR target/37033
        * pch.c (cpp_valid_state): Improve message for poisoned symbols.
        Allow for differences in __GCC_HAVE_DWARF2_CFI_ASM.

2008-11-29  Joseph Myers  <joseph@codesourcery.com>

        * lex.c (cpp_token_len): Use 6 as default length.

2008-10-31  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * expr.c (struct op): Add location.
        (_cpp_parse_expr): Propagate locations throught the stack
        of expressions.
        (reduce): Likewise.
        (check_promotion): Use explicit location in errors.

2008-10-05  Matthew Gingell  <gingell@adacore.com>
            Arnaud Charlet  <charlet@adacore.com>

        * include/cpplib.h (cpp_comments, cpp_comment_table): New structs.
        (cpp_get_comments): New function.
        * internal.h (struct cpp_reader): Add comments field.
        * init.c (cpp_destroy): Free comments.
        * lex.c (store_comment, cpp_get_comments): New functions.
        (comments): New struct.
        (save_comment): Store comments in comments struct.

2008-09-18  Simon Baldwin  <simonb@google.com>

        * include/cpplib.h (struct cpp_options): Add new boolean flag
        warn_builtin_macro_redefined.
        * init.c (cpp_create_reader): Initialize warn_builtin_macro_redefined.
        * (struct builtin_operator): Split out from previous struct builtin,
        enhance extra const correctness.
        * (struct builtin_macro): Split out from previous struct builtin, add
        new always_warn_if_redefined flag, enhance const correctness.
        * (mark_named_operators): Use struct builtin_operator.
        * (cpp_init_special_builtins): Use struct builtin_macro, add NODE_WARN
        to builtins selectively.
        * macro.c (warn_of_redefinition): Return false if a builtin macro
        is not flagged with NODE_WARN.

2008-07-31  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/36649
        * files.c (struct report_missing_guard_data): New type.
        (report_missing_guard): Put paths into an array instead of printing
        them right away.  Return 1 rather than 0.
        (report_missing_guard_cmp): New function.
        (_cpp_report_missing_guards): Sort and print paths gathered by
        report_missing_guard callback.

2008-07-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 28079
        * directives.c (strtolinenum): Handle overflow.
        (do_line): Give a warning if line number overflowed.
        (do_linemarker): Update call to strtolinenum.

2008-07-21  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * include/line-map.h (linenum_type): New typedef.
        (struct line_map): Use it.
        (SOURCE_LINE): Second arguments is a LOCATION not a LINE.
        (SOURCE_COLUMN): Likewise.
        * macro.c (_cpp_builtin_macro_text): Use linenum_type. Don't store
        source_location values in a variable of type linenum_type.
        * directives.c (struct if_stack): Use linenum_type.
        (strtoul_for_line): Rename as strtolinenum.
        (do_line): Use linenum_type.
        (do_linemarker): Use linenum_type and strtolinenum.
        (_cpp_do_file_change): Use linenum_t.
        * line-map.c (linemap_add): Likewise.
        (linemap_line_start): Likewise.
        * traditional.c (struct fun_macro): 'line' is a source_location.
        * errors.c (print_location): Use linenum_type.
        * directives-only.c (_cpp_preprocess_dir_only): Likewise.
        * internal.h (CPP_INCREMENT_LINE): Likewise.
        * lex.c (_cpp_skip_block_comment): Use source_location.

2008-07-14  Ben Elliston  <bje@au.ibm.com>

        * include/cpplib.h (NODE_CONDITIONAL): New.
        (struct cpp_callbacks): New macro_to_expand field.
        (struct cpp_hashnode): Adjust size of flags and type fields.
        (cpp_peek_token): Prototype.
        * lex.c (cpp_peek_token): New function.
        (_cpp_temp_token): Protect pre-existing lookaheads.
        * macro.c (cpp_get_token): Expand any conditional macros.
        (_cpp_backup_tokens_direct): New.
        (_cpp_backup_tokens): Call _cpp_backup_tokens_direct.
        (warn_of_redefinition): Silently allow redefined conditional
        macros.
        (_cpp_create_definition): Remove the conditional flag when a user
        defines one of the conditional macros.
        * internal.h (_cpp_backup_tokens_direct): New prototype.

2008-06-13  Andrew Haley  <aph@redhat.com>

        PR preprocessor/33305
        * macro.c (replace_args): Print a warning for empty macro
        arguments in C89 and C++.

2008-06-17  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * Makefile.in ($(srcdir)/aclocal.m4): Update dependencies.
        * configure: Regenerate.

2008-06-16  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * Makefile.in (datarootdir): New variable.

2008-06-12  H.J. Lu  <hongjiu.lu@intel.com>

        PR preprocessor/36479
        * charset.c (cpp_interpret_string_notranslate): Also set
        narrow_cset_desc.width.

2008-06-07  Joseph Myers  <joseph@codesourcery.com>

        * configure.ac (parisc*64*-*-*): Remove.
        * configure: Regenerate.

2008-05-30  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/36320:
        * internal.h (_cpp_parse_expr): Update.
        * expr.c (_cpp_parse_expr): Add 'is_if' argument.  Update error
        messages.
        * directives.c (do_if): Update.
        (do_elif): Require expression if processing group.

2008-05-30  Danny Smith  <dannysmith@users.sourceforge.net>

        * include/cpplib.h (struct cpp_dir): Add new field, canonical_name.

2008-05-21  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/27777:
        * lex.c (cpp_output_line_to_string): New function.
        * internal.h (_cpp_begin_message): Don't declare.
        * errors.c (_cpp_begin_message): Now static.
        * include/cpplib.h (cpp_output_line_to_string): Declare.
        * directives.c (do_diagnostic): Rewrote.  Use
        cpp_output_line_to_string.  Don't use _cpp_begin_message.

2008-05-21  Tom Tromey  <tromey@redhat.com>

        * include/symtab.h (HT_ALLOCED): Remove.
        (ht_purge): Declare.
        * symtab.c (DELETED): New define.
        (ht_lookup): Update comment.
        (ht_lookup_with_hash): Handle deleted entries.  Remove HT_ALLOCED
        code.  Use subobject allocator for strings, if it exists.
        (ht_expand): Handle deleted entries.
        (ht_forall): Likewise.
        (ht_purge): New function.
        (ht_dump_statistics): Print deletion statistics.

2008-05-13  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/22168:
        * include/cpplib.h (struct cpp_options) <objc>: Update
        documentation.
        * expr.c (eval_token): Warn for use of assertions.
        * directives.c (directive_diagnostics): Warn about extensions.
        (DEPRECATED): New define.
        (DIRECTIVE_TABLE): Use it.

2008-05-06  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/35313, PR preprocessor/36088:
        * expr.c (optab) <QUERY, COMMA>: Set precedence to 4.
        (reduce) <case CPP_QUERY>: Special case CPP_COMMA and CPP_COLON.

2008-05-04  David S. Miller  <davem@davemloft.net>

        * configure.ac (sparc*-*-*): Always set need_64bit_hwint to yes.
        * configure: Regenerate.

2008-04-22  Daniel Franke  <franke.daniel@gmail.com>

        * include/cpplib.h (cpp_define_formatted): New.
        * directives.c (cpp_define_formatted): New.

2008-04-21  Tom Tromey  <tromey@redhat.com>

        PR libcpp/33415:
        * charset.c (_cpp_convert_input): Add buffer_start argument.
        Ignore UTF-8 BOM if seen.
        * internal.h (_cpp_convert_input): Add argument.
        * files.c (struct _cpp_file) <buffer_start>: New field.
        (destroy_cpp_file): Free buffer_start, not buffer.
        (_cpp_pop_file_buffer): Likewise.
        (read_file_guts): Update.

2008-04-18  Kris Van Hees <kris.van.hees@oracle.com>

        * include/cpp-id-data.h (UC): Was U, conflicts with U"..." literal.
        * include/cpplib.h (CHAR16, CHAR32, STRING16, STRING32): New tokens.
        (struct cpp_options): Added uliterals.
        (cpp_interpret_string): Update prototype.
        (cpp_interpret_string_notranslate): Idem.
        * charset.c (init_iconv_desc): New width member in cset_converter.
        (cpp_init_iconv): Add support for char{16,32}_cset_desc.
        (convert_ucn): Idem.
        (emit_numeric_escape): Idem.
        (convert_hex): Idem.
        (convert_oct): Idem.
        (convert_escape): Idem.
        (converter_for_type): New function.
        (cpp_interpret_string): Use converter_for_type, support u and U prefix.
        (cpp_interpret_string_notranslate): Match changed prototype.
        (wide_str_to_charconst): Use converter_for_type.
        (cpp_interpret_charconst): Add support for CPP_CHAR{16,32}.
        * directives.c (linemarker_dir): Macro U changed to UC.
        (parse_include): Idem.
        (register_pragma_1): Idem.
        (restore_registered_pragmas): Idem.
        (get__Pragma_string): Support CPP_STRING{16,32}.
        * expr.c (eval_token): Support CPP_CHAR{16,32}.
        * init.c (struct lang_flags): Added uliterals.
        (lang_defaults): Idem.
        * internal.h (struct cset_converter) <width>: New field.
        (struct cpp_reader) <char16_cset_desc>: Idem.
        (struct cpp_reader) <char32_cset_desc>: Idem.
        * lex.c (digraph_spellings): Macro U changed to UC.
        (OP, TK): Idem.
        (lex_string): Add support for u'...', U'...', u"..." and U"...".
        (_cpp_lex_direct): Idem.
        * macro.c (_cpp_builtin_macro_text): Macro U changed to UC.
        (stringify_arg): Support CPP_CHAR{16,32} and CPP_STRING{16,32}.

2008-04-18  Paolo Bonzini  <bonzini@gnu.org>

        PR bootstrap/35457
        * aclocal.m4: Regenerate.
        * configure: Regenerate.

2008-04-17  Tom Tromey  <tromey@redhat.com>

        PR libcpp/34866:
        * errors.c (cpp_error): Don't reference a token before the start
        of the current run.

2008-04-16  Tom Tromey  <tromey@redhat.com>

        * Makefile.in (TAGS_SOURCES): New variable.
        (TAGS): New target.

2008-04-11  Kaz Kojima  <kkojima@gcc.gnu.org>

        * configure.ac: (need_64bit_hwint): Need 64bit hwint for sh-*-*
        and shbe-*-*.
        * configure: Rebuilt.

2008-04-02  Joseph Myers  <joseph@codesourcery.com>

        * include/cpplib.h (struct cpp_callbacks): Add used_define,
        used_undef and before_define.
        (NODE_USED): Define.
        * directives.c (do_define, do_undef, undefine_macros, do_ifdef,
        do_ifndef, cpp_pop_definition): Handle new flag and use new
        callbacks.
        * expr.c (parse_defined): Handle new flag and use new callbacks.
        * macro.c (enter_macro_context, _cpp_free_definition): Handle new
        flag and use new callbacks.

2008-04-01  Jakub Jelinek  <jakub@redhat.com>

        PR pch/13675
        * files.c (struct _cpp_file): Remove pch field.
        (pch_open_file): Don't set file->pch, just file->pchname.
        (should_stack_file): After pfile->cb.read_pch call
        free pchname and clear pchname, don't close file->fd.
        Test file->pchname instead of file->pch.  Don't close fd after cb.
        (_cpp_stack_include): Test file->pchname instead of file->pch.

2008-03-28  Tom Tromey  <tromey@redhat.com>

        * Makefile.in (POSTCOMPILE): New variable.
        (.c.o): Use it.

2008-03-13  Tom Tromey  <tromey@redhat.com>

        PR libcpp/35322:
        * directives.c (destringize_and_run): Set pfile->directive.

2008-03-06  Markus Milleder  <markus.milleder@generali.at>

        PR preprocessor/35458
        * mkdeps.c (munge): Quote '#' with a '\'.

2008-02-27  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR preprocessor/35379
        * mkdeps.c (deps_write): Ensure the first target always appears
        in the first column, without leading backslash newline.  Avoid
        some more extra whitespace.

2008-02-25  Thiemo Seufer <ths@mips.com>

        * Makefile.in ($(srcdir)/config.in): Depend on configure.ac.

2008-02-19  Tom Tromey  <tromey@redhat.com>

        * traditional.c (lex_identifier): Use CPP_HASHNODE.
        * lex.c (lex_identifier): Use CPP_HASHNODE.
        * include/line-map.h (LINEMAP_POSITION_FOR_COLUMN): Wrap in
        do-while.
        * identifiers.c (alloc_node): Change return type.
        (_cpp_init_hashtable): Don't cast 'alloc_node'.
        (proxy_assertion_broken): New declaration.
        (cpp_forall_identifiers): Move comment.
        * line-map.c (linemap_add): Comment fix.
        (linemap_line_start): Indentation fix.

2008-01-25  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/34692
        * macro.c (collect_args): Add pragma_buff argument.  Push
        CPP_PRAGMA ... CPP_PRAGMA_EOL tokens to *pragma_buff, rather
        than into arguments.  Reset prevent_expansion and parsing_args
        state at CPP_PRAGMA_EOL/CPP_EOF.
        (funlike_invocation_p): Add pragma_buff argument, pass it through
        to collect_args.
        (enter_macro_context): Add result argument.  Adjust
        funlike_invocation_p caller.  Emit all deferred pragma tokens
        gathered during collect_args before the expansion, add a padding
        token.  Return 2 instead of 1 if any pragma tokens were prepended.
        (cpp_get_token): If enter_macro_context returns 2, don't return
        a padding token, instead cycle to grab CPP_PRAGMA token.
        * directives.c (_cpp_handle_directive): If was_parsing_args
        in deferred pragma, leave parsing_args and prevent_expansion as is.

2008-01-22  Tom Tromey  <tromey@redhat.com>

        PR c++/34859
        * macro.c (_cpp_create_definition): Handle __STDC_LIMIT_MACROS and
        __STDC_CONSTANT_MACROS.

2008-01-07  Fred Fish  <fnf@specifix.com>

        PR preprocessor/30363
        * traditional.c (replace_args_and_push): Add local variable
        cxtquote, calculate the replacement text size assuming a
        worst case of every input character quoted with backslash,
        and properly handle output quoting of quote characters in
        actual arguments used in function-like macros.

2008-01-03  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/34602
        * directives.c (do_line): Don't try to spell EOF token.
        (do_linemarker): Add comment.

2007-12-11  DJ Delorie  <dj@redhat.com>

        * charset.c (convert_using_iconv): Close out any shift states,
        returning to the initial state.

2007-12-06  Tom Tromey  <tromey@redhat.com>

        PR c/29172
        * internal.h (struct cpp_reader) <file_hash_entries>: Changed
        type.
        <file_hash_entries_allocated, file_hash_entries_used>: Removed.
        * files.c (FILE_HASH_POOL_SIZE): New macro.
        (struct file_hash_entry_pool): New.
        (destroy_all_cpp_files): New function.
        (allocate_file_hash_entries): Allocate a file_hash_entry_pool.
        (new_file_hash_entry): Update.
        (free_file_hash_entries): New function.
        (_cpp_cleanup_files): Call free_file_hash_entries and
        destroy_all_cpp_files.
        (cpp_clear_file_cache): New function.
        * include/cpplib.h (cpp_clear_file_cache): Declare.

2007-12-03  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/34288
        * configure.ac, config.in: Rebuilt.
        * configure.ac: Check for ssize_t.

2007-11-30  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/32868
        * macro.c (_cpp_create_definition): Special case
        __STDC_FORMAT_MACROS.

2007-11-16  Michael Matz  <matz@suse.de>

        * files.c (search_path_head): Fix check for absolute paths.

2007-11-11  Tom Tromey  <tromey@redhat.com>

        PR c++/17557
        * include/cpplib.h (cpp_included_before): Declare.
        * files.c (struct file_hash_entry) <location>: New field.
        (_cpp_find_file): Initialize new field.
        (make_cpp_dir): Likewise.
        (cpp_included_before): New function.

2007-11-01  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/30805
        * macro.c (paste_tokens): Handle padding token.
        (paste_tokens): Don't abort unless padding has PASTE_LEFT flag.

2007-10-31  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/30786
        * macro.c (builtin_macro): Return result of _cpp_do__Pragma.
        * directives.c (_cpp_do__Pragma): Return error status.
        * internal.h (_cpp_do__Pragma): Update.
        * directives.c (get__Pragma_string): Back up if EOF seen.

2007-09-06  Tom Tromey  <tromey@redhat.com>

        * internal.h (struct cpp_reader) <invocation_location>: New
        field.
        (struct cpp_reader) <set_invocation_location>: Likewise.
        * init.c (cpp_set_line_map): New function.
        * line-map.c (linemap_add): Use linemap's allocator.
        * include/line-map.h (GTY): Define.
        (line_map_realloc): New typedef.
        (struct line_map): Mark with GTY.
        (struct line_maps): Likewise.
        (struct line_maps) <maps>: Likewise.
        (struct line_maps) <reallocator>: New field.
        * include/symtab.h (GTY): Conditionally define.
        * include/cpplib.h (cpp_set_line_map): Declare.
        (cpp_get_token_with_location): Declare.
        * macro.c (cpp_get_token): Set invocation_location on the reader.
        (cpp_get_token_with_location): New function.

2007-08-30  Chao-ying Fu  <fu@mips.com>

        * expr.c (interpret_float_suffix): Support hr, r, lr, llr, uhr, ur,
        ulr, ullr, hk, k, lk, llk, uhk, uk, ulk, ullk.
        (cpp_classify_number): Support decimal fixed-point constants without
        exponents.
        Warn about fixed-point constants when -pedantic.
        * include/cpplib.h (CPP_N_SMALL, CPP_N_MEDIUM, CPP_N_LARGE): Change
        comments to support fixed-point values.
        (CPP_N_FRACT, CPP_N_ACCUM): Define.

2007-08-18  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/32974
        * directives.c (parse_include): Don't check for EOL when
        processing #pragma dependency.

2007-07-30  Ollie Wild  <aaw@google.com>

        * directives-only.c: New file.
        * internal.h (struct _cpp_dir_only_callbacks): New.
        (_cpp_preprocess_dir_only): New function.
        * directives.c (_cpp_handle_directive): Check directives_only before
        disabling execution of indented directives.
        * files.c (_cpp_stack_file): Add directives_only check.
        * include/cpplib.h (struct cpp_options): Add directives_only.
        (cpp_init_special_builtins): New function.
        * init.c (cpp_init_special_builtins): New function.
        (cpp_init_builtins): Move builtin_array initialization to
        cpp_init_special_builtins.
        (post_options): Check directives_only before setting
        pfile->state.prevent_expansion = 1.
        * macro.c (_cpp_builtin_macro_text): Print an error if __COUNTER__
        is expanded inside a directive while -fdirectives-only is enabled.
        * Makefile.in (libcpp_a_OBJS): Add directives-only.o.
        (libcpp_a_SOURCES): Add directives-only.c.

2007-07-04  Uros Bizjak  <ubizjak@gmail.com>

        * traditional.c (_cpp_scan_out_logical_line): Initialize
        fmacro.args, fmacro.node, fmacro.offset, fmacro.line and
        fmacro.args to prevent 'may be used uninitialized' warning.

2007-07-03  Uros Bizjak  <ubizjak@gmail.com>

        * include/cpplib.h (CPP_N_WIDTH_MD, CPP_N_MD_W, CPP_N_MD_Q):
        Add new constants.
        * expr.c (interpret_float_suffix): Process 'w', 'W', 'q' and 'Q'
        suffixes.  Return CPP_N_MD_W for 'w' or 'W' suffixes and CPP_N_MD_Q
        for 'q' or 'Q' suffixes.

2007-06-17  Danny Smith  <dannysmith@users.sourceforge.net

        * files.c (open_file): Correct typo.

2007-06-16  Vladimir Prus  <vladimir@codesourcery.com>

        * files.c (open_file): Prevent the call
        for stat from overwriting errno.

2007-06-09  Vladimir Prus  <vladimir@codesourcery.com>

        * files.c (open_file): Account for the
        fact that on windows, opening a directory gives
        EACCES.

2007-06-05  Joerg Wunsch  <j.gnu@uriah.heep.sax.de>

        PR preprocessor/23479
        * expr.c (cpp_classify_number): Implement 0b-prefixed binary
        integer constants.
        (append_digit): Likewise.
        * include/cpplib.h: Add CPP_N_BINARY, to be used for 0b-prefixed
        binary integer constants.

2007-05-31  Dave Korn  <dave.korn@artimi.com>

        PR preprocessor/14331
        * lex.c (_cpp_get_fresh_line):  Don't warn if no newline at EOF.

2007-05-24  Ollie Wild  <aaw@google.com>

        * macro.c (_cpp_builtin_macro_text): Handle BT_COUNTER.
        * pch.c (cpp_write_pch_deps): Save __COUNTER__ state.
        (cpp_write_pch_state): Save __COUNTER__ state.
        (cpp_valid_state): Check valid __COUNTER__ state.
        (cpp_read_state): Read new __COUNTER__ state.
        * include/cpplib.h (enum builtin_type): Add BT_COUNTER enumerator.
        * init.c (builtin_array): Add __COUNTER__/BT_COUNTER.
        * internal.h (struct cpp_reader): Add counter member.

2007-05-23  Simon Martin  <simartin@users.sourceforge.net>

        PR preprocessor/20077
        * macro.c (create_iso_definition): Fixed the method to determine
        whether the token-pasting operator appears at the beginning or the end
        of a macro.

2007-05-21  Ian Lance Taylor  <iant@google.com>

        * internal.h (struct cpp_reader): Add new fields:
        nonexistent_file_hash and nonexistent_file_ob.
        * files.c: Include "obstack.h".
        (find_file_in_dir): Before trying to open the file, look up the
        path name in the hash table of nonexistent files.  After failing
        to open the file, add the path name to the hash table.
        (_cpp_find_file): Cache the results of looking up the file name
        starting with the quote and bracket chain heads, if we can.
        (nonexistent_file_hash_eq): New static function.
        (_cpp_init_files): Initialize pfile->nonexistent_file_hash and
        pfile->nonexistent_file_ob.
        (_cpp_cleanup_files): Free pfile->nonexistent_file_hash and
        pfile->nonexistent_file_ob.

2007-05-14  Janis Johnson  <janis187@us.ibm.com>

        * expr.c (cpp_classify_number): Warn about dfp constant for -pedantic.

        PR c/31924
        * expr.c (interpret_float_suffix): Check for invalid suffix.

2007-05-02  Eric Christopher  <echristo@apple.com>

        * expr.c (num_div_op): Don't overflow if the result is
        zero.

2007-05-02  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/28709
        * macro.c (paste_tokens): Remove PASTE_LEFT from the old lhs.

2007-03-30  Michael Meissner  <michael.meissner@amd.com>

        * directives.c (lex_macro_node_from_str): Fix alloca call to be
        type correct.

2007-03-30  Richard Henderson  <rth@redhat.com>

        * directives.c (lex_macro_node_from_str): New.
        (cpp_push_definition, cpp_pop_definition): New.
        * include/cpplib.h (cpp_push_definition, cpp_pop_definition): Declare.

2007-03-01  Brooks Moses  <brooks.moses@codesourcery.com>

        * Makefile.in: Add dummy install-pdf target.

2007-01-30  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/30468
        * mkdeps.c (apply_vpath): Strip successive '/'s if we stripped
        './'.

2007-01-30  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/29966
        * macro.c (lex_expansion_token): Save and restore cpp_reader's
        cur_token.
        (_cpp_create_definition): Don't restore cur_token here.
        * lex.c (_cpp_lex_token): Added assertion.

2007-01-27  Tom Tromey  <tromey@redhat.com>

        * configure: Rebuilt.

2007-01-12  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/28227
        * directives.c (lex_macro_node): Added 'is_def_or_undef'
        argument.
        (do_define): Update.
        (do_undef): Update.
        (do_ifdef): Update.
        (do_ifndef): Update.

2007-01-11  Paolo Bonzini  <bonzini@gnu.org>

        * configure: Regenerate.

2007-01-11  Paolo Bonzini  <bonzini@gnu.org>

        * configure: Regenerate.

2007-01-04  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/28165
        * internal.h (cpp_in_primary_file): New function.
        * directives.c (do_include_next): Use cpp_in_primary_file.
        (do_pragma_once): Likewise.
        (do_pragma_system_header): Likewise.

2006-12-29  Ian Lance Taylor  <iant@google.com>

        * lex.c (_cpp_clean_line): Add uses of __builtin_expect.  Don't
        look backward at the end of the line unless we saw a backslash.

2006-12-29  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/29612
        * directives.c (do_linemarker): Set pfile->buffer->sysp always, not
        only when new_sysp is non-zero.

2006-12-28  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/30001
        * charset.c (_cpp_convert_input): Check that to.len is greater
        than zero.

2006-11-20  Trevor Smigiel <Trevor_Smigiel@playstation.sony.com>

        * configure.ac (need_64bit_hwint): Need 64bit hwint for SPU.
        * configure: Rebuilt.

2006-11-01      Douglas Gregor <doug.gregor@gmail.com>

        * include/cpplib.h (enum c_lang): Add CLK_GNUCXX0X and CLK_CXX0X
        for experimental C++0x mode.
        * init.c (lang_defaults): Add defaults for C++0x modes. C++0x has
        adopted the preprocessor changes introduced in C99.

2006-10-29  Joseph Myers  <joseph@codesourcery.com>

        * configure.ac (need_64bit_hwint): Set for i[34567]86-*-linux*
        depending on --enable-targets=all.
        * configure: Regenerate.

2006-10-12  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/28709
        * macro.c (paste_tokens): Do error reporting here, use BUF with the
        spelled LHS token as opposed to spelling it again.
        (paste_all_tokens): Don't report errors here, just break on failure.

2006-10-10  Brooks Moses  <bmoses@stanford.edu>

        * Makefile.in: Added empty "pdf" target.

2006-09-22  Geoffrey Keating  <geoffk@apple.com>

        * configure.ac: Make need_64_bit_hwint case for x86-darwin
        match exactly the glob in gcc/config.gcc.
        * configure: Regenerate.

2006-09-13  Joseph S. Myers  <joseph@codesourcery.com>

        PR c/28768
        PR preprocessor/14634
        * lex.c (lex_string): Pedwarn for unterminated literals.

2006-09-08  Eric Christopher  <echristo@apple.com>

        * configure.ac: Add 64-bit HWI support for i?86-darwin.

2006-08-14  Steve Ellcey  <sje@cup.hp.com>

        PR c++/28288
        PR c++/14556
        * include/cpplib.h: Remove <?, >?, <?=, and >?= tokens.
        (CPP_LAST_EQ): Change.
        (CPP_LAST_PUNCTUATOR): Change.
        * expr.c (cpp_operator): Remove MIN and MAX.
        (reduce): Remove CPP_MIN and CPP_MAX.
        (num_binary_op): Ditto.
        * lex.c (_cpp_lex_direct): Ditto.
        (cpp_avoid_paste): Remove ? as legal symbol after > or <.

2006-06-09  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/27746
        * directives.c (do_pragma): Handle pragma with valid namespace
        and invalid name coming from macro expansion.
        * directives.c (destringize_and_run): Initialize next field in
        context.

        PR c/27747
        PR c++/27748
        * directives.c (destringize_and_run): Set NO_EXPAND on the
        tokens.

        * macro.c (_cpp_backup_tokens): Fix comment typo.

2006-05-31  Daniel Jacobowitz  <dan@codesourcery.com>

        * Makefile.in (CATALOGS): Add po/ prefix.
        * configure: Regenerated.

2006-05-23  Carlos O'Donell  <carlos@codesourcery.com>

        * Makefile.in: Add install-html target. Add install-html to .PHONY

2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>

        * macro.c (_cpp_builtin_macro_text): Handle BT_TIMESTAMP.
        * files.c (_cpp_get_file_stat): New function.
        * include/cpplib.h (builtin_type): Add BT_TIMESTAMP.
        * init.c (builtin_array): Add support for __TIMESTAMP__/BT_TIMESTAMP.
        * internal.h (_cpp_get_file_stat): Prototype.
        (struct cpp_buffer): Add timestamp.

2006-01-23  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/25717
        * init.c (cpp_init_builtins): If __STDC__ will not change value
        between system headers and other sources, define it as a normal
        macro rather than a builtin.
        * macro.c (_cpp_builtin_macro_text) <case BT_STDC>: Only check
        cpp_in_system_header condition.

2006-01-05  Paolo Bonzini  <bonzini@gnu.org>

        * Makefile.in: Use -MMD instead of -MD.

2006-01-04  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
            Richard Henderson  <rth@redhat.com>

        Merge from gomp branch:
        * directives.c (struct pragma_entry): Add is_deferred.  Add ident
        entry to value union.
        (end_directive): Don't eat the line if in_deferred_pragma.
        (run_directive): Remove pragma hacks.
        (insert_pragma_entry): Remove.
        (new_pragma_entry): New.
        (register_pragma_1): Split out of register_pragma.  Only handle
        the lookup tree and return the new entry.
        (cpp_register_pragma): Fill in the pragma entry here.
        (cpp_register_deferred_pragma): New.
        (register_pragma_internal): New.
        (_cpp_init_internal_pragmas): Use register_pragma_internal.
        (do_pragma): Allow pragma expansion after namespace.  For deferred
        pragmas, don't slurp the line into a string.
        (destringize_and_run): Save tokens for deferred pragmas.
        (cpp_handle_deferred_pragma): Remove.
        * macro.c (builtin_macro): Remove pragma token hack.
        (_cpp_push_token_context): Rename from push_token_context and export.
        * internal.h (struct lexer_state): Add pragma_allow_expansion.
        (_cpp_push_token_context): Declare.
        * lex.c (_cpp_lex_token): Allow _cpp_handle_directive to return
        a token.  Update the line number correctly if so.
        (_cpp_lex_direct): Emit CPP_PRAGMA_EOL tokens.
        (cpp_token_val_index): Return CPP_TOKEN_FLD_PRAGMA for pragmas.
        * include/cpplib.h (PRAGMA_EOL): New.
        (CPP_TOKEN_FLD_PRAGMA): New.
        (struct cpp_token): Add val.pragma.
        (struct cpp_options): Remove defer_pragmas.
        (cpp_handle_deferred_pragma): Remove.
        (cpp_register_deferred_pragma): Declare.

2006-01-01  Jakub Jelinek  <jakub@redhat.com>

        PR c++/25294
        * directives.c (do_pragma): If pragma line ends with multi-line
        block comment, end the saved deferred pragma string before that
        comment.  Handle embedded '\0' chars on the pragma line.

2005-12-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR c++/23333
        * include/cpplib.h: Add PURE_ZERO to flags for the cpp_token structure.

2005-12-07  Jon Grimm  <jgrimm2@us.ibm.com>
            Ben Elliston  <bje@au.ibm.com>

        * include/cpplib.h (CPP_N_DFLOAT): New.
        * expr.c (interpret_float_suffix): Identify df, dd, and dl
        suffixes as decimal floating point constants.
        (cpp_classify_number): Disallow hexadecimal DFP constants.

2005-11-14  Gerald Pfeifer  <gerald@pfeifer.com>
            Ian Lance Taylor  <ian@airs.com>

        * include/cpplib.h (struct cpp_callbacks): Annotate error with
        ATTRIBUTE_FPTR_PRINTF(3,0) instead of ATTRIBUTE_PRINTF(3,0).

2005-11-09  Per Bothner  <per@bothner.com>
            Uros Bizjak  <uros@kss-loka.si>

        PR c/24101
        * init.c (read_original_filename): Temporarily set
        state.in_directive before calling _cpp_lex_direct for
        CPP_HASH tokens.

2005-11-03  James E Wilson  <wilson@specifix.com>

        PR preprocessor/24202
        * files.c (_cpp_pop_file_buffer): Set buffer_valid to false.

2005-11-04  Joseph S. Myers  <joseph@codesourcery.com>

        * include/cpplib.h (struct cpp_callbacks): Make error take
        va_list* parameter.
        * errors.c (cpp_error): Update call to callback.

2005-11-03  Andrew Pinski  <pinskia@physics.uc.edu>

        PR preprocessor/22042
        * macro.c (_cpp_builtin_macro_text): Lower the needed max
        buffer size.
        (cpp_quote_string): Don't octalify non printable
        charactors.

2005-11-03  Joseph S. Myers  <joseph@codesourcery.com>

        PR c++/17964
        * include/cpplib.h (struct cpp_options): Add client_diagnostic.
        (struct cpp_callbacks): Add error.
        * errors.c (cpp_error): If client_diagnostic, use error callback.
        * charset.c (convert_escape): Don't use %03o in diagnostic.

2005-10-21  James E Wilson  <wilson@specifix.com>

        PR preprocessor/15220
        * files.c (_cpp_find_file): New parameter angle_brackets.  Fix all
        callers.  Pass to open_file_failed.
        (open_file_failed): New parameter angle_brackets.  Fix all callers.
        Use in print_dep assignment.
        * init.c (cpp_read_main_file): Pass additional arg to _cpp_find_file.
        * internal.h (_cpp_find_file): Add new parm to declaration.

2005-10-08  Kazu Hirata  <kazu@codesourcery.com>

        * configure.ac: Require 64-bit int for arm*-*-*eabi*.
        * configure: Regenerate.

2005-10-04  Ian Lance Taylor  <ian@airs.com>

        PR preprocessor/13726
        * directives.c (check_eol_return_comments): New static function.
        (parse_include): Add buf parameter.  Change all callers.
        (do_include_common): If not discard comments, turn on
        save_comments.  Pass collected comments to include callback.
        * include/cpplib.h (struct cpp_callbacks): Add new parameter to
        include callback: cpp_token list.

2005-09-20  Joseph S. Myers  <joseph@codesourcery.com>

        * include/cpplib.h (struct cpp_options): Add extended_identifiers.
        * init.c (struct lang_flags, lang_defaults): Add
        extended_identifiers.
        (cpp_set_lang): Use it.
        * lex.c (forms_identifier_p): Check extended_identifiers.

2005-08-30  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/20348
        PR preprocessor/20356
        * files.c (_cpp_find_file, search_cache): Revert 2004-06-26 and
        2004-06-05 changes.

2005-07-23  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * configure.ac (ACX_PROG_CC_WARNING_OPTS): add
        -Wmissing-format-attribute.

        * configure: Regenerate.

2005-06-29  Kelley Cook  <kcook@gcc.gnu.org>

        * all files: Update FSF address in copyright headers.
        * makeucnid.c (write_copyright): Update outputted FSF address.

2005-06-13  Zack Weinberg  <zack@codesourcery.com>

        * configure.ac: Invoke ZW_CREATE_DEPDIR and
        ZW_PROG_COMPILER_DEPENDENCIES.
        * aclocal.m4, configure: Regenerate.
        * Makefile.in (DEPMODE, DEPDIR, depcomp, COMPILE.base, COMPILE):
        New variables.
        (distclean): Clean up $(DEPDIR) and its contents.
        (.c.o): Use $(COMPILE).
        Include $(DEPDIR)/*.Po for most object->header dependencies.

2005-05-28  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * configure.ac: Check declarations for asprintf and vasprintf.
        * config.in: Regenerate.
        * configure: Likewise.

        * charset.c (conversion_loop): Use XRESIZEVEC.
        (convert_no_conversion): Likewise.
        (convert_using_iconv): Likewise.
        (init_iconv_desc): Cast return value of alloca.
        (cpp_host_to_exec_charset): Use XNEWVEC.
        (emit_numeric_escape): Use XRESIZEVEC.
        (cpp_interpret_string): Use XNEWVEC.
        (cpp_interpret_string): Use XRESIZEVEC.
        (_cpp_interpret_identifier): Cast return value of alloca.
        (_cpp_convert_input): Use XNEWVEC and XRESIZEVEC.
        * directives.c (glue_header_name): Use XNEWVEC and XRESIZEVEC.
        (parse_include): Use XNEWVEC.
        (insert_pragma_entry): Rename local variable "new" to
        "new_entry".
        (save_registered_pragmas): Cast return value of xmemdup.
        (destringize_and_run): Same for alloca.
        (parse_assertion): Likewise.
        (do_assert): Cast allocated storage to proper type.
        (cpp_define): Likewise.
        (_cpp_define_builtin): Likewise.
        (cpp_undef): Likewise.
        (handle_assertion): Likewise.
        (cpp_push_buffer): Rename local variable "new" to "new_buffer".
        * expr.c (CPP_UPLUS): Cast value to type cpp_ttype.
        (CPP_UMINUS): Likewise.
        (struct cpp_operator): Rename from struct operator.
        (_cpp_expand_op_stack): Use XRESIZEVEC.
        * files.c (pch_open_file): Use XNEWVEC.
        (pch_open_file): Use XRESIZEVEC.
        (read_file_guts): Use XNEWVEC and XRESIZEVEC.
        (dir_name_of_file): Use XNEWVEC.
        (make_cpp_file): Use XCNEW.
        (make_cpp_dir): Likewise.
        (allocate_file_hash_entries): USE XNEWVEC.
        (cpp_included): Cast return value of htab_find_with_hash.
        (append_file_to_dir): Use XNEWVEC.
        (read_filename_string): Likewise. Use XRESIZEVEC too.
        (read_name_map): Cast return value of alloca.  Use XRESIZEVEC.
        (remap_filename): Use XNEWVEC.
        (struct pchf_entry): Move definition out of struct pchf_data.
        (_cpp_save_file_entries): Use XCNEWVAR.
        (_cpp_read_file_entries): Use XNEWVAR.
        * identifiers.c (alloc_node): Use XOBNEW.
        * init.c (cpp_create_reader): Use XCNEW.
        (cpp_init_builtins): Cast of b->value to enum builtin_type.
        (read_original_directory): Cast return value of alloca.
        * lex.c (add_line_note): Use XRESIZEVEC.
        (warn_about_normalization): Use XNEWVEC.
        (_cpp_lex_direct): Cast node->directive_index to (enum cpp_ttype).
        (new_buff): Use XNEWVEC.
        * line-map.c (linemap_add): Use XRESIZEVEC.
        * macro.c (builtin_macro): Cast return value of alloca.
        (paste_tokens): Likewise.
        (expand_arg): Use XNEWVEC and XRESIZEVEC.
        (_cpp_save_parameter): Use XRESIZEVEC.
        (create_iso_definition): Cast allocated storage to proper type.
        (_cpp_create_definition): Likewise.
        (cpp_macro_definition): Use XRESIZEVEC.
        * makedepend.c (add_clm): Use XNEW.
        (add_dir): Likewise.
        * mkdeps.c (munge): Use XNEWVEC.
        (deps_init): Use XCNEW.
        (deps_add_target): Use XRESIZEVEC.
        (deps_add_default_target): Cast return value of alloca.
        (deps_add_dep): Use XRESIZEVEC.
        (deps_add_vpath): Likewise.  Use XNEWVEC too.
        (deps_restore): Likewise.
        * pch.c (save_idents): Use XNEW and XNEWVEC.
        (cpp_save_state): Use XNEW.
        (count_defs): Cast return value of htab_find.
        (write_defs): Likewise.
        (cpp_write_pch_deps): Use XNEWVEC.
        (collect_ht_nodes): Use XRESIZEVEC.
        (cpp_valid_state): Use XNEWVEC.
        (save_macros): Use XRESIZEVEC.  Cast return value of xmemdup.
        * symtab.c (ht_create): Use XCNEW.
        (ht_lookup_with_hash): Cast return value of obstack_copy0.
        (ht_expand): Use XCNEWVEC.
        * system.h (HAVE_DESIGNATED_INITIALIZERS): False if __cplusplus.
        (bool): Do not define if __cplusplus.

2005-05-12  Zack Weinberg  <zack@codesourcery.com>

        * directives.c (#sccs table entry): Mark IN_I, consistent with #ident.
        (do_sccs): Delete function definition, #define to do_ident.
        (do_ident): Don't hardwire directive name.

2005-05-12  Ryota Kunisawa  <kunisawa@access.co.jp>

        PR bootstrap/21230
        * configure: Regenerate.

2005-04-27  Andris Pavenis  <pavenis@latnet.lv>

        * files.c: Include io.h for DJGPP to get prototype of setmode.

2005-04-19  Per Bothner  <per@bothner.com>

        PR preprocessor/20907
        * line-map.c (linemap_line_start): Fix bug when we need to increse
        column_bits but can re-use the current line_map.

2005-04-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * system.h (fopen, fdopen, freopen): Define these to the unlocked
        libiberty functions.

2005-04-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * configure.ac (libcpp_UNLOCKED_FUNCS): New.
        (AC_CHECK_FUNCS, AC_CHECK_DECLS): Check for libcpp_UNLOCKED_FUNCS.
        * system.h (putchar, getc, getchar, clearerr, feof, fileno,
        fflush, fgetc, fgets, ferror, fread): Redefine to the associated
        _unlocked function.
        (fwrite_unlocked): Fix prototype.

        * configure, config.in: Regenerate.

2005-04-05  Jakub Jelinek  <jakub@redhat.com>

        PR preprocessor/19475
        * macro.c (create_iso_definition): For < ISO C99, don't
        pedwarn if there is no whitespace between macro name and its
        replacement, but the replacement starts with a basic character
        set character.

2005-03-28  Andreas Jaeger  <aj@suse.de>

        * lex.c (warn_about_normalization): Cast field width to int to
        avoid warning.

2005-03-19  Joseph S. Myers  <joseph@codesourcery.com>

        * configure.ac: Consistently use solaris2.1[0-9]* instead of
        solaris2.1[0-9].
        * configure: Regenerate.

2005-03-15  Geoffrey Keating  <geoffk@apple.com>

        * charset.c (_cpp_valid_ucn): In identifiers, reject a partial
        UCN rather than printing an error.

2005-03-14  Geoffrey Keating  <geoffk@apple.com>

        * lex.c (forms_identifier_p): Disable UCNs in C89 mode.

2005-03-14  Geoffrey Keating  <geoffk@apple.com>

        * init.c (cpp_create_reader): Default warn_normalize to normalized_C.
        * charset.c: Update for new format of ucnid.h.
        (ucn_valid_in_identifier): Update for new format of ucnid.h.
        Add NST parameter, and update it; update callers.
        (cpp_valid_ucn): Add NST parameter, update callers.  Replace abort
        with cpp_error.
        (convert_ucn): Pass normalize_state to cpp_valid_ucn.
        * internal.h (struct normalize_state): New.
        (INITIAL_NORMALIZE_STATE): New.
        (NORMALIZE_STATE_RESULT): New.
        (NORMALIZE_STATE_UPDATE_IDNUM): New.
        (_cpp_valid_ucn): New.
        * lex.c (warn_about_normalization): New.
        (forms_identifier_p): Add normalize_state parameter, update callers.
        (lex_identifier): Add normalize_state parameter, update callers.  Keep
        the state current.
        (lex_number): Likewise.
        (_cpp_lex_direct): Pass normalize_state to subroutines.  Check
        it with warn_about_normalization.
        * makeucnid.c: New.
        * ucnid.h: Replace.
        * ucnid.pl: Remove.
        * ucnid.tab: Make appropriate for input to makeucnid.c.  Remove
        comments about obsolete version of C++.
        * include/cpplib.h (enum cpp_normalize_level): New.
        (struct cpp_options): Add warn_normalize field.

2005-03-11  Geoffrey Keating  <geoffk@apple.com>

        * directives.c (glue_header_name): Update call to cpp_spell_token.
        * internal.h (_cpp_interpret_identifier): New.
        * charset.c (_cpp_interpret_identifier): New.
        (_cpp_valid_ucn): Allow UCN version of '$'.
        * lex.c (lex_identifier): Add extra parameter to indicate if initial
        character was '$' or '\'.  Support identifiers with UCNs.
        (forms_identifier_p): Allow UCNs.
        (_cpp_lex_direct): Pass extra parameter to lex_identifier.
        (utf8_to_ucn): New.
        (cpp_spell_token): Add FORSTRING parameter.  Use it.
        (cpp_token_as_text): Update call to cpp_spell_token.
        (cpp_output_token): Write UCNs back out.
        (stringify_arg): Update call to cpp_spell_token.
        (paste_tokens): Likewise.
        (cpp_macro_definition): Likewise.
        * macro.c (stringify_arg): Likewise.
        (paste_tokens): Likewise.
        (cpp_macro_definition): Likewise.
        * include/cpplib.h: Add parameter to cpp_spell_token.

2005-03-04  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/20282
        PR bootstrap/20305
        * macro.c (replace_args, cpp_get_token): Copy whole
        cpp_token_u instead of just cpp_string field from it.

2005-02-28  Devang Patel  <dpatel@apple.com>

        * directives.c (do_line): Save sysp early before line table is
        realloc'ed.

2005-02-20  Zack Weinberg  <zack@codesourcery.com>

        PR 18785
        * charset.c (LAST_POSSIBLY_BASIC_SOURCE_CHAR): New helper macro.
        (cpp_host_to_exec_charset): New function.
        * include/cpplib.h: Declare cpp_host_to_exec_charset.

2005-02-19  Devang Patel  <dpatel@apple.com>

        * charset.c (_cpp_convert_input): Check '\r' before inserting
        '\n' at the end.

2005-02-15  Eric Christopher  <echristo@redhat.com>

        PR preprocessor/19077
        * macro.c (cpp_macro_definition): Move handling of whitespace
        to PREV_WHITE conditional. Remove overloading of len
        variable.

2005-02-14  Kazu Hirata  <kazu@cs.umass.edu>

        * directives.c, files.c, init.c, internal.h, macro.c, pch.c,
        traditional.c: Update copyright.

2005-02-14  Paolo Bonzini  <bonzini@gnu.org>

        PR bootstrap/19818
        * configure.ac: Check for declaration of basename and getopt.
        * config.in: Regenerate.
        * configure: Regenerate.
        * internal.h (ustrcspn): New.
        * macro.c (create_iso_definition): Fix allocation of memory.
        (padding_token): Add cast to remove const-ness.
        * pch.c (cpp_read_state): Use ustrcspn.

2005-02-08  Mike Stump  <mrs@apple.com>

        * files.c (pchf_adder): Remove.
        (struct pchf_adder_info): Likewise.
        (_cpp_save_file_entries): Write out all files so that #import works.

2005-01-23  Joseph S. Myers  <joseph@codesourcery.com>

        * configure: Regenerate.

2005-01-11  Tobias Schlueter  <tobias.schlueter@physik.uni-muenchen.de>

        * include/cpplib.h (c_lang): Fix comment to say cpp_create_reader.

        * include/cpplib.h: Also update copyright years.

2005-01-03  Geoffrey Keating  <geoffk@apple.com>

        * files.c (_cpp_find_file): Add files found by search_path_exhausted
        to the list of all files.

2005-01-01  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * internal.h: Update references to Cpp lib filenames.
        * directives.c: Likewise.
        * init.c: Likewise.
        * macro.c: Likewise.
        * traditional.c: Likewise.

2004-12-15  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR preprocessor/15167
        * files.c (destroy_cpp_file): New function.
        (should_stack_file): Make a new file if the
        compared file is still stacked.

2004-11-28  Nathanael Nerode  <neroden@gcc.gnu.org>

        PR preprocessor/17610
        * directives.c (do_include_common): Error out if an empty filename
        is given for #include (or #include_next or #import).

2004-11-27  Roger Sayle  <roger@eyesopen.com>
            Zack Weinberg  <zack@codesourcery.com>

        * internal.h: Replace all uses of uchar with unsigned char.
        * include/cpp-id-data.h: Likewise.  Guard typedef of uchar
        with !IN_GCC, so uchar is only defined whilst building libcpp.

2004-11-24  Kelley Cook  <kcook@gcc.gnu.org>

        * aclocal.m4: Regenerate.

2004-11-24  Roger Sayle  <roger@eyesopen.com>

        PR preprocessor/15824
        * configure.ac: Correct HAVE_UCHAR test to #include <sys/types.h>
        directly, instead of the non-existant "system.h" and "ansidecl.h".
        * configure: Regenerate.

2004-11-23  Daniel Jacobowitz  <dan@codesourcery.com>
            Joseph Myers  <joseph@codesourcery.com>

        * internal.h (struct lexer_state): Add in_deferred_pragma.
        * directives.c (struct pragma_entry): Add allow_expansion.
        (insert_pragma_entry): Take allow_expansion flag.
        (register_pragma): Likewise.
        (cpp_register_pragma): Likewise.
        (_cpp_init_internal_pragmas): Update calls to cpp_register_pragma.
        (do_pragma): Honor allow_expansion.
        (cpp_handle_deferred_pragma): Set in_deferred_pragma.
        * include/cpplib.h (cpp_register_pragma): Update prototype.

2004-11-18  Daniel Jacobowitz  <dan@codesourcery.com>
            Mark Mitchell  <mark@codesourcery.com>

        * configure.ac (i[34567]86-*-solaris2.1[0-9]*): Set
        need_64bit_hwint=yes.
        * configure: Regenerate.

2004-11-09  Joseph S. Myers  <joseph@codesourcery.com>

        * Makefile.in ($(PACKAGE).pot): New rule.  Depend on
        po/$(PACKAGE).pot.
        (po/$(PACKAGE).pot): Use ":" instead of "," in --keyword
        arguments.  Add keywords _, N_, SYNTAX_ERROR and SYNTAX_ERROR2.
        Remove local srcdir path from generated file.

2004-11-04  Zack Weinberg  <zack@codesourcery.com>
            Gerald Pfeifer  <gerald@pfeifer.com>

        * internal.h (HAVE_ICONV): Undefine if we do not have HAVE_ICONV_H
        as well.

2004-10-27  Zack Weinberg  <zack@codesourcery.com>

        PR 18075
        * directives.c (do_pragma): Do not defer pragmas which are unknown.
        (cpp_handle_deferred_pragma): Add cast to silence warning.

2004-10-14  Joseph S. Myers  <jsm@polyomino.org.uk>

        * errors.c (_cpp_begin_message): Print "error: " for errors.

2004-10-10  Andreas Jaeger  <aj@suse.de>

        * makedepend.c: Include mkdeps.h for prototype of deps_add_vpath.
        * Makefile.in (makedepend.o): Add dependency on mkdeps.h.

2004-10-08  Andrew Pinski  <pinskia@physics.uc.edu>

        * pch.c (cpp_write_pch_state): Remove variable z as it is not
        used.
        (cpp_read_state): Remove unused variables, m, d and mac_count.

2004-09-29  Per Bothner  <per@bothner.com>

        * directives.c (cpp_handle_deferred_pragma):  Save, clear and restore
        cb.line_change.  Otherwise do_pragma will call the line_change
        call-back with a meaningless line number.

2004-09-24  Zack Weinberg  <zack@codesourcery.com>

        * configure.ac: Move AC_PROG_MAKE_SET, AC_PROG_INSTALL to
        programs cluster. Use ACX_PROG_CC_WARNING_OPTS,
        ACX_PROG_CC_WARNING_ALMOST_PEDANTIC, ACX_PROG_CC_WARNINGS_ARE_ERRORS.
        * aclocal.m4, configure: Regenerate.
        * init.c: Include localedir.h.
        * Makefile.in (WARN_CFLAGS, ALL_CFLAGS): New variables.
        (DEFS): Delete.
        (.c.o): Use $(ALL_CFLAGS).
        (localedir.h, localedir.hs): New rules.
        (clean): Use rm -rf to remove directories.
        (distclean): Also delete localedir.h and localedir.hs.
        (init.o): Update dependencies.

2004-09-22  Kelley Cook  <kcook@gcc.gnu.org>

        * Makefile.in (aclocal.m4): Update dependencies.
        * configure.ac (AC_CONFIG_MACRO_DIR): New.
        * aclocal.m4, configure: Regenerate.

2004-09-17  Zack Weinberg  <zack@codesourcery.com>

        * charset.c (_cpp_destroy_iconv, emit_numeric_escape)
        (_cpp_convert_input, _cpp_default_encoding): Add comments.
        Some other comments in this file also tweaked.

        * directives.c (do_pragma): Save current buffer position
        before lexing the pragma keywords; don't call
        _cpp_backup_tokens in the defer_pragmas case.

2004-09-15  Per Bothner  <per@bothner.com>

        * include/line-map.h (line_map_start):  Add parameter names so
        preceding comment makes sense.
        (linemap_add):  Remove from comment mention of non-existing parameter.

2004-09-09  Matt Austern  <austern@apple.com>
            Zack Weinberg  <zack@codesourcery.com>

        * include/cpplib.h (TTYPE_TABLE): Remove CPP_ and SPELL_
        prefixes throughout.  Add entry for PRAGMA.  Remove
        unnecessary "= 0" from EQ.
        (enum cpp_ttype): Adjust OP and TK definitions to restore
        prefixes, via token-paste.
        (CPP_LAST_EQ, CPP_FIRST_DIGRAPH, CPP_LAST_PUNCTUATOR, CPP_LAST_CPP_OP):
        Change from #defines to additional cpp_ttype enumerators.
        (struct cpp_options): Add defer_pragmas.
        (cpp_handle_deferred_pragma): Prototype new interface.

        * internal.h (struct cpp_reader): Add directive_result.
        * directives.c (struct pragma_entry): Add is_internal field;
        give boolean fields type bool.
        (start_directive): Initialize pfile->directive_result.type.
        (_cpp_do__Pragma): Likewise.
        (run_directive): Do not crash if pfile->buffer->prev is NULL.
        (insert_pragma_entry): Add 'internal' argument; set new->is_internal
        from it.
        (register_pragma): New static function, bulk of former
        cpp_register_pragma here; add 'internal' argument, pass along
        to insert_pragma_entry.
        (cpp_register_pragma): Now a wrapper around register_pragma which
        always passes false for 'internal' argument.
        (_cpp_init_internal_pragmas): Call register_pragma directly, passing
        true for 'internal'.
        (do_pragma): If CPP_OPTION (pfile, defer_pragmas) and this isn't
        an internal pragma, save text till the end of the line as a CPP_PRAGMA
        token instead of executing the pragma.
        (cpp_handle_deferred_pragma): New interface.
        * lex.c (token_spellings): Adjust OP and TK definitions to
        match changes to cpplib.h.
        (_cpp_lex_token): Check for a directive-result token and
        return it if present.
        (cpp_token_val_index): Handle CPP_PRAGMA.
        * macro.c (cpp_builtin_macro_text): Correct comment.
        (builtin_macro): Handle directive-result tokens from _cpp_do__Pragma.

2004-09-06  Serge Belyshev  <belyshev@lubercy.com>

        PR preprocessor/14699
        * symtab.c (ht_dump_statistics): Change type of sum_of_squares
        from size_t to double.

2004-08-28  Andreas Schwab  <schwab@suse.de>
            Andreas Jaeger <aj@suse.de>

        * configure.ac: Set PACKAGE correctly.
        * configure: Regenerated.

2004-08-25  Paolo Bonzini  <bonzini@gnu.org>

        * Makefile.in: Add back top_builddir.

2004-08-25  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac: Replace Automake macro invocations
        with manual Autoconf checks and substitutions.
        * configure: Regenerate.
        * aclocal.m4: Regenerate.
        * config.in: Regenerate.
        * Makefile.am: Removed.
        * Makefile.in: Heavy simplification and reorganization.

2004-08-09  Mark Mitchell  <mark@codesourcery.com>

        * configure.ac (arm*-*-eabi*): New target.
        (arm*-*-symbianelf*): Likewise.
        * configure: Regenerated.

2004-07-24  Bernardo Innocenti  <bernie@develer.com>

        * internal.h (xnew, xcnew, xnewvec, xcnewvec, xobnew): Remove.
        * directives.c: Use XNEW-family macros from libiberty.
        * lex.c: Likewise.
        * macro.c: Likewise.
        * cpplib.h (cpp_deps_style): Export enum with name.

2004-07-23  Matthias Klose  <doko@debian.org>

        * init.c (init_library): Use PACKAGE for the text domain.

2004-07-16  Andris Pavenis  <pavenis@latnet.lv>

        PR preprocessor/16366
        * internal.h (struct cpp_reader): New field dir_hash.
        * files.c (make_cpp_dir): Use dir_hash, not file_hash.
        (_cpp_init_files, _cpp_cleanup_files): Update for new field.

2004-07-04  Neil Booth  <neil@duron.akihabara.co.uk>

        PR preprocessor/16192
        PR preprocessor/15913
        PR preprocessor/15572
        * expr.c (_cpp_parse_expr): Handle remaining cases where an
        expression is missing.
        * init.c (post_options): Traditional cpp doesn't do // comments.

2004-06-30  Per Bothner  <per@bothner.com>

        * include/line-map.h (fileline):  Remove old typedef.
        * internal.h (struct cpp_reader):  Use source_location typedef instead.

2004-06-26  Zack Weinberg  <zack@codesourcery.com>

        Partially revert patch of 2004-06-05.
        * files.c (search_cache): Remove pfile argument.  Don't check
        for file that would be found by "" or <> search here...
        (_cpp_find_file): ...do it here, before calling find_file_in_dir.
        Do not apply directory-of-current-file correction to files
        found by this check.  Rearrange code slightly.

2004-06-21  Geoffrey Keating  <geoffk@apple.com>

        * files.c (should_stack_file): Correct swapped parameters to call
        to cb.read_pch.
        * pch.c (cpp_valid_state): Handle -fpreprocessed.

2004-06-15  Paolo Bonzini  <bonzini@gnu.org>

        * Makefile.in: Regenerate with automake 1.8.5.
        * aclocal.m4: Likewise.
        * configure: Regenerate.

2004-06-11  Zack Weinberg  <zack@codesourcery.com>

        * configure.ac: Don't invoke ACX_HEADER_STDBOOL.
        * configure, config.in: Regenerate.
        * system.h: Unconditionally define bool as unsigned char,
        BOOL_BITFIELD as unsigned int.
        * .cvsignore: New file.

2004-06-09  Geoffrey Keating  <geoffk@apple.com>

        * traditional.c (push_replacement_text): Set macro->traditional.
        (save_replacement_text): Likewise.
        * pch.c (cpp_write_pch_state): Don't write list of defined macros.
        (struct save_macro_item): Delete.
        (struct save_macro_data): Use a character array not the previous
        structured format.
        (save_macros): Save macro as text not as internal structures.
        (cpp_prepare_state): Update for changes to save_macro_data.
        (cpp_read_state): Don't read macros defined in PCH.  Restore
        -D macros as text.
        * macro.c (create_iso_definition): Honour alloc_subobject.
        Clear traditional flag.
        (_cpp_create_definition): Honour alloc_subobject.
        * lex.c (cpp_token_val_index): New.
        * internal.h: Include cpp-id-data.h.
        (uchar): Move definition to cpp-id-data.h.
        (U): Likewise.
        (cpp_macro): Likewise.
        * directives.c (struct answer): Move to cpp-id-data.h.
        (do_assert): Honour alloc_subobject.

        * include/symtab.h (struct ht): Add field 'alloc_subobject'.
        * include/cpplib.h (struct cpp_string): Add GTY marker.
        (enum cpp_token_fld_kind): New.
        (struct cpp_token): Add GTY markers.
        (cpp_token_val_index): Prototype.
        (CPP_HASHNODE_VALUE_IDX): New.
        (struct cpp_hashnode): Don't skip fields of 'value' when marking.
        * include/cpp-id-data.h: New file.

2004-06-09  Paolo Bonzini  <bonzini@gnu.org>

        * Makefile.am (all-local): New.
        * Makefile.in: Regenerate.

2004-06-06  Roger Sayle  <roger@eyesopen.com>

        * Makefile.am (LIBICONV): Declare.
        (makedepend_LDADD): Use LIBICONV.
        * Makefile.in: Regenerate.

2004-06-05  Andrew Pinski  <pinskia@physics.uc.edu>

        * Makefile.am (LIBINTL): Declare
        (makedepend_LDADD): Use LIBINTL.
        * Makefile.in: Regenerate.

2004-06-05  Zack Weinberg  <zack@codesourcery.com>

        * Makefile.am: Add makedepend.
        * Makefile.in, aclocal.m4: Regenerate.
        * charset.c: Insert a space to avoid a warning.
        * directives.c: Include mkdeps.h.
        (_cpp_handle_directive): Reenable macro expander if appropriate.
        (undefine_macros): Inline body of _cpp_free_definition for speed.
        Do not call undef callback or _cpp_warn_if_unused_macro.
        (cpp_get_deps): New interface.
        * files.c (search_cache): Add pfile argument.  Check for file
        that would be found by "" or <> search here...
        (_cpp_find_file): ...not here.  Correct recorded start_dir of
        files found by directory-of-current-file search that would be
        found by "" or <> search.
        * init.c (cpp_add_dependency_target): Delete.
        * internal.h (struct lexer_state): Add discarding_output flag.
        * lex.c (lex_identifier): Compute hash function while scanning.
        * macro.c (cpp_scan_nooutput): Disable macro expansion outside
        directives.
        * makedepend.c: New file.
        * mkdeps.c (struct deps): Add vpath vector.
        (apply_vpath, deps_add_vpath): New function.
        (deps_free): Free vpath vector.
        (deps_add_dep, deps_add_target): Use apply_vpath.
        * symtab.c (calc_hash): Use HT_HASHSTEP and HT_FINISH.
        (ht_lookup_with_hash): New function.
        * cpplib.h, mkdeps.h: Update prototypes.
        * symtab.h: Update prototypes.
        (HT_HASHSTEP, HT_FINISH): New macros.

2004-05-29  Geoffrey Keating  <geoffk@apple.com>

        * symtab.c (ht_create): Set entries_owned.
        (ht_destroy): Honour entries_owned.
        (ht_expand): Likewise.
        (ht_load): New.
        * include/symtab.h (struct ht): New field 'entries_owned'
        (ht_load): New prototype.

2004-05-26  Paolo Bonzini  <bonzini@gnu.org>

        PR bootstrap/15651
        * configure.ac: Fix m4 quoting when picking
        the size of HOST_WIDE_INT.
        * configure: Regenerate.

2004-05-25  Paolo Bonzini  <bonzini@gnu.org>

        * Makefile.am: the correct directory for
        gettext include files is given by @INCINTL@.
        * Makefile.in: Regenerate.

2004-05-24  Paolo Bonzini  <bonzini@gnu.org>

        * system.h [!ENABLE_NLS]: dgettext takes two
        parameters.

2004-05-23  Paolo Bonzini  <bonzini@gnu.org>

        Moved libcpp from the gcc subdirectory to the toplevel.
        * Makefile.am: New file.
        * Makefile.in: Regenerate.
        * configure.ac: New file.
        * configure: Regenerate.
        * config.in: Regenerate.
        * charset.c: Moved from gcc/cppcharset.c.  Add note about
        brokenness of input charset detection.  Adjust for change
        in name of cppucnid.h.
        * errors.c: Moved from gcc/cpperror.c.  Do not include intl.h.
        * expr.c: Moved from gcc/cppexp.c.
        * files.c: Moved from gcc/cppfiles.c.  Do not include intl.h.
        Remove #define of O_BINARY, it is in system.h.
        * identifiers.c: Moved from gcc/cpphash.c.
        * internal.h: Moved from gcc/cpphash.h.  Change header
        guard name.  All other files adjusted to match name change.
        * init.c: Moved from gcc/cppinit.c.
        (init_library) [ENABLE_NLS]: Call bindtextdomain.
        * lex.c: Moved from gcc/cpplex.c.
        * directives.c: Moved from gcc/cpplib.c.
        * macro.c: Moved from gcc/cppmacro.c.
        * pch.c: Moved from gcc/cpppch.c.  Do not include intl.h.
        * traditional.c: Moved from gcc/cpptrad.c.
        * ucnid.h: Moved from gcc/cppucnid.h.  Change header
        guard name.
        * ucnid.pl: Moved from gcc/cppucnid.pl.
        * ucnid.tab: Moved from gcc/cppucnid.tab.  Change header
        guard name.
        * symtab.c: Moved from gcc/hashtable.c.
        * line-map.c: Moved from gcc.  Do not include intl.h.
        * mkdeps.c: Moved from gcc.
        * system.h: New file.
        * include/cpplib.h: Moved from gcc.  Change header guard name.
        * include/line-map.h: Moved from gcc.  Change header guard name.
        * include/mkdeps.h: Moved from gcc.  Change header guard name.
        * include/symtab.h: Moved from gcc/hashtable.h.  Change header
        guard name.
\f
Copyright (C) 2004-2016 Free Software Foundation, Inc.

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are permitted in any medium without royalty provided the copyright
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