+2020-12-01 JeanHeyd Meneide <phdofthehouse@gmail.com>
+
+ * charset.c (init_iconv_desc): Initialize "to" and "from" fields.
+ * directives.c (cpp_get_narrow_charset_name): New function.
+ (cpp_get_wide_charset_name): Likewise.
+ * include/cpplib.h (cpp_get_narrow_charset_name): Prototype.
+ (cpp_get_wide_charset_name): Likewise.
+ * internal.h (cset_converter): Add "to" and "from" fields.
+
+2020-11-27 Joseph Myers <joseph@codesourcery.com>
+
+ PR preprocessor/97602
+ * directives.c (strtolinenum): Check for overflow before it
+ occurs. Correct comment.
+
+2020-11-24 Nathan Sidwell <nathan@acm.org>
+
+ * include/cpplib.h (struct cpp_hashnode): Add deferred field.
+ (cpp_set_deferred_macro): Define.
+ (cpp_get_deferred_macro): Declare.
+ (cpp_macro_definition): Reformat, add overload.
+ (cpp_macro_definition_location): Deal with deferred macro.
+ (cpp_alloc_token_string, cpp_compare_macro): Declare.
+ * internal.h (_cpp_notify_macro_use): Return bool
+ (_cpp_maybe_notify_macro_use): Likewise.
+ * directives.c (do_undef): Check macro is not undef before
+ warning.
+ (do_ifdef, do_ifndef): Deal with deferred macro.
+ * expr.c (parse_defined): Likewise.
+ * lex.c (cpp_allocate_token_string): Break out of ...
+ (create_literal): ... here. Call it.
+ (cpp_maybe_module_directive): Deal with deferred macro.
+ * macro.c (cpp_get_token_1): Deal with deferred macro.
+ (warn_of_redefinition): Deal with deferred macro.
+ (compare_macros): Rename to ...
+ (cpp_compare_macro): ... here. Make extern.
+ (cpp_get_deferred_macro): New.
+ (_cpp_notify_macro_use): Deal with deferred macro, return bool
+ indicating definedness.
+ (cpp_macro_definition): Deal with deferred macro.
+
+2020-11-19 Nathan Sidwell <nathan@acm.org>
+
+ * include/cpplib.h (enum cpp_main_search): New.
+ (struct cpp_options): Add main_search field.
+ (cpp_main_loc): Declare.
+ (cpp_retrofit_as_include): Declare.
+ * internal.h (struct cpp_reader): Add main_loc field.
+ (_cpp_in_main_source_file): Not main if main is a header.
+ * init.c (cpp_read_main_file): Use main_search option to locate
+ main file. Set main_loc
+ * files.c (cpp_retrofit_as_include): New.
+
+2020-11-19 Nathan Sidwell <nathan@acm.org>
+
+ * internal.h (cpp_in_system_header): Rename to ...
+ (_cpp_in_system_header): ... here.
+ (cpp_in_primary_file): Rename to ...
+ (_cpp_in_main_source_file): ... here. Compare main_file equality
+ and check main_search value.
+ * lex.c (maybe_va_opt_error, _cpp_lex_direct): Adjust for rename.
+ * macro.c (_cpp_builtin_macro_text): Likewise.
+ (replace_args): Likewise.
+ * directives.c (do_include_next): Likewise.
+ (do_pragma_once, do_pragma_system_header): Likewise.
+ * files.c (struct _cpp_file): Delete main_file field.
+ (pch_open): Check pfile->main_file equality.
+ (make_cpp_file): Drop cpp_reader parm, don't set main_file.
+ (_cpp_find_file): Adjust.
+ (_cpp_stack_file): Check pfile->main_file equality.
+ (struct report_missing_guard_data): Add cpp_reader field.
+ (report_missing_guard): Check pfile->main_file equality.
+ (_cpp_report_missing_guards): Adjust.
+
+2020-11-18 Nathan Sidwell <nathan@acm.org>
+
+ * include/cpplib.h (struct cpp_options): Add module_directives
+ option.
+ (NODE_MODULE): New node flag.
+ (struct cpp_hashnode): Make rid-code a bitfield, increase bits in
+ flags and swap with type field.
+ * init.c (post_options): Create module-directive identifier nodes.
+ * internal.h (struct lexer_state): Add directive_file_token &
+ n_modules fields. Add module node enumerator.
+ * lex.c (cpp_maybe_module_directive): New.
+ (_cpp_lex_token): Call it.
+ (cpp_output_token): Add '"' around CPP_HEADER_NAME token.
+ (do_peek_ident, do_peek_module): New.
+ (cpp_directives_only): Detect module-directive lines.
+ * macro.c (cpp_get_token_1): Deal with directive_file_token
+ triggering.
+
+2020-11-18 Nathan Sidwell <nathan@acm.org>
+
+ * files.c (struct _cpp_file): Add header_unit field.
+ (_cpp_stack_file): Add header unit support.
+ (cpp_find_header_unit): New.
+ * include/cpplib.h (cpp_find_header_unit): Declare.
+
+2020-11-18 Nathan Sidwell <nathan@acm.org>
+
+ * include/cpplib.h (struct cpp_options): Add modules to
+ dep-options.
+ * include/mkdeps.h (deps_add_module_target): Declare.
+ (deps_add_module_dep): Declare.
+ * mkdeps.c (class mkdeps): Add modules, module_name, cmi_name,
+ is_header_unit fields. Adjust cdtors.
+ (deps_add_module_target, deps_add_module_dep): New.
+ (make_write): Write module dependencies, if enabled.
+
+2020-11-17 Nathan Sidwell <nathan@acm.org>
+
+ * include/cpplib.h (struct cpp_callbacks): Add
+ user_deferred_macro & translate_include.
+
+2020-11-17 Nathan Sidwell <nathan@acm.org>
+
+ * include/line-map.h (enum lc_reason): Add LC_MODULE.
+ (MAP_MODULE_P): New.
+ (line_map_new_raw): Declare.
+ (linemap_enter_macro): Move declaration from internal.h
+ (linemap_module_loc, linemap_module_reparent)
+ (linemap_module_restore): Declare.
+ (linemap_lookup_macro_indec): Declare.
+ * internal.h (linemap_enter_macro): Moved to line-map.h.
+ * line-map.c (linemap_new_raw): New, broken out of ...
+ (new_linemap): ... here. Call it.
+ (LAST_SOURCE_LINE_LOCATION): New.
+ (liemap_module_loc, linemap_module_reparent)
+ (linemap_module_restore): New.
+ (linemap_lookup_macro_index): New, broken out of ...
+ (linemap_macro_map_lookup): ... here. Call it.
+ (linemap_dump): Add module dump.
+
+2020-11-17 Nathan Sidwell <nathan@acm.org>
+
+ PR preprocessor/97858
+ * mkdeps.c (munge): Drop varadic args, we only ever use one.
+
+2020-11-13 Joseph Myers <joseph@codesourcery.com>
+
+ * expr.c (cpp_classify_number): Update diagnostic for binary
+ constants for C. Also diagnose binary constants for
+ -Wc11-c2x-compat.
+ * init.c (lang_defaults): Enable binary constants for GNUC2X and
+ STDC2X.
+
+2020-11-13 Piotr H. Dabrowski <phd@phd.re>
+
+ PR c++/91318
+ * include/cpplib.h: Added cpp_define_unused(), cpp_define_formatted_unused()
+ * directives.c: Likewise.
+
+2020-11-12 Joseph Myers <joseph@codesourcery.com>
+
+ * include/cpplib.h (struct cpp_callbacks): Add bool argument to
+ has_attribute.
+ (enum cpp_builtin_type): Add BT_HAS_STD_ATTRIBUTE.
+ * init.c (builtin_array): Add __has_c_attribute.
+ (cpp_init_special_builtins): Handle BT_HAS_STD_ATTRIBUTE.
+ * macro.c (_cpp_builtin_macro_text): Handle BT_HAS_STD_ATTRIBUTE.
+ Update call to has_attribute for BT_HAS_ATTRIBUTE.
+ * traditional.c (fun_like_macro): Handle BT_HAS_STD_ATTRIBUTE.
+
+2020-11-12 Nicholas Guriev <guriev-ns@ya.ru>
+
+ PR pch/86674
+ * files.c (_cpp_find_file): Use CPP_DL_NOTE not CPP_DL_ERROR in call to
+ cpp_error.
+
+2020-11-07 Lewis Hyatt <lhyatt@gmail.com>
+
+ * generated_cpp_wcwidth.h: Regenerated from Unicode 13.0.0 data.
+
+2020-11-06 Nathan Sidwell <nathan@acm.org>
+
+ * include/cpplib.h (enum class CPP_time_kind): New.
+ (cpp_get_date): Declare.
+ * internal.h (struct cpp_reader): Replace source_date_epoch with
+ time_stamp and time_stamp_kind.
+ * init.c (cpp_create_reader): Initialize them.
+ * macro.c (_cpp_builtin_macro_text): Use cpp_get_date.
+ (cpp_get_date): Broken out from _cpp_builtin_macro_text and
+ genericized.
+
+2020-11-03 Nathan Sidwell <nathan@acm.org>
+
+ * lex.c (cpp_peek_token): Do not peek past CPP_PRAGMA.
+ (_cpp_lex_direct): Handle EOF in pragma when setting need_line,
+ not when needing a line.
+
+2020-11-03 Nathan Sidwell <nathan@acm.org>
+
+ * lex.c (_cpp_clean_line): Fix DOS off-by-one error.
+
+2020-11-03 Nathan Sidwell <nathan@acm.org>
+
+ * init.c (cpp_read_main_file): Use cpp_get_deps result.
+
+2020-11-03 Nathan Sidwell <nathan@acm.org>
+
+ * include/mkdeps.h: Include cpplib.h
+ (deps_write): Adjust first parm type.
+ * mkdeps.c: Include internal.h
+ (make_write): Adjust first parm type. Check phony option
+ directly.
+ (deps_write): Adjust first parm type.
+ * init.c (cpp_read_main_file): Use get_deps.
+ * directives.c (cpp_get_deps): Check option before initializing.
+
+2020-11-02 Nathan Sidwell <nathan@acm.org>
+
+ * internal.h (_cpp_notify_macro_use): Add location parm.
+ (_cpp_maybe_notify_macro_use): Likewise.
+ * directives.c (_cpp_do_file_change): Check we've not changed file
+ when optimizing a rewind.
+ (do_ifdef): Pass location to _cpp_maybe_notify_macro_use.
+ (do_ifndef): Likewise. Delete obsolete comment about powerpc.
+ * expr.c (parse_defined): Pass location to
+ _cpp_maybe_notify_macro_use.
+ * macro.c (enter_macro_context): Likewise.
+ (warn_of_redefinition): Break out helper function. Call it.
+ (compare_macros): New function broken out of warn_of_redefinition.
+ (_cpp_new_macro): Zero all fields.
+ (_cpp_notify_macro_use): Add location parameter.
+
+2020-10-20 Nathan Sidwell <nathan@acm.org>
+
+ * lex.c (_cpp_lex_direct): Do not complete EOF processing when
+ parsing_args.
+ * macro.c (collect_args): Do not unwind fake EOF.
+ (funlike_invocation_p): Do not unwind fake EOF.
+ (cpp_context): Replace abort with gcc_assert.
+
+2020-10-19 Nathan Sidwell <nathan@acm.org>
+
+ * internal.h (struct cpp_reader): Rename 'eof' field to 'endarg'.
+ * init.c (cpp_create_reader): Adjust.
+ * macro.c (collect_args): Use endarg for separator. Always rewind
+ in the not-fn case.
+
+2020-10-08 Nathan Sidwell <nathan@acm.org>
+
+ * internal.h (enum include_type): Rename IT_MAIN_INJECT to
+ IT_PRE_MAIN.
+ * init.c (cpp_read_main_file): If there is no line marker, adjust
+ the initial line marker.
+ (read_original_filename): Return bool, peek the buffer directly
+ before trying to tokenize.
+ (read_original_directory): Likewise. Directly prod the string
+ literal.
+ * files.c (_cpp_stack_file): Adjust for IT_PRE_MAIN change.
+
+2020-09-26 Jakub Jelinek <jakub@redhat.com>
+
+ PR bootstrap/97163
+ * lex.c (search_line_fast): Only use _ARCH_PWR8 Altivec version
+ for GCC >= 4.5.
+
+2020-09-17 Patrick Palka <ppalka@redhat.com>
+
+ PR c/80076
+ * include/line-map.h (first_map_in_common): Declare.
+ * line-map.c (first_map_in_common): Remove static.
+
+2020-09-07 Martin Storsjö <martin@martin.st>
+
+ * files.c (remap_filename): Make a strchr return value pointer
+ to const.
+
+2020-07-30 H.J. Lu <hjl.tools@gmail.com>
+
+ PR bootstrap/96202
+ * configure: Regenerated.
+
+2020-07-29 Tiziano Müller <tiziano.mueller@chem.uzh.ch>
+
+ * init.c (builtin_array): Add xref comment.
+ * traditional.c (fun_like_macro): Add HAS_INCLUDE codes.
+
+2020-07-28 Jakub Jelinek <jakub@redhat.com>
+
+ PR preprocessor/96323
+ * lex.c (lex_raw_string): For c == '\n' don't continue after reporting
+ an prefix delimiter error.
+
+2020-07-28 Nathan Sidwell <nathan@acm.org>
+
+ * init.c (cpp_read_main_file): Always use the last map for
+ the return value.
+
+2020-07-20 Nathan Sidwell <nathan@acm.org>
+
+ * line-map.c (linemap_add): Simplify column overflow calculation.
+ Add comment about range and column bit init.
+ (linemap_ordinary_map_lookup): Refactor for RAII
+ (linemap_macro_map_lookup): Likewise.
+
+2020-07-14 Lewis Hyatt <lhyatt@gmail.com>
+
+ PR preprocessor/49973
+ PR other/86904
+ * include/cpplib.h (struct cpp_options): Removed support for -ftabstop,
+ which is now handled by diagnostic_context.
+ (class cpp_display_width_computation): New class.
+ (cpp_byte_column_to_display_column): Add optional tabstop argument.
+ (cpp_display_width): Likewise.
+ (cpp_display_column_to_byte_column): Likewise.
+ * charset.c
+ (cpp_display_width_computation::cpp_display_width_computation): New
+ function.
+ (cpp_display_width_computation::advance_display_cols): Likewise.
+ (compute_next_display_width): Removed and implemented this
+ functionality in a new function...
+ (cpp_display_width_computation::process_next_codepoint): ...here.
+ (cpp_byte_column_to_display_column): Added tabstop argument.
+ Reimplemented in terms of class cpp_display_width_computation.
+ (cpp_display_column_to_byte_column): Likewise.
+ * init.c (cpp_create_reader): Remove handling of -ftabstop, which is now
+ handled by diagnostic_context.
+
+2020-07-07 Nathan Sidwell <nathan@acm.org>
+
+ * directives.c (do_linemarker): Optimize rewinding to line zero.
+ * files.c (_cpp_stack_file): Start on line zero when about to inject
+ headers.
+ (cpp_push_include, cpp_push_default_include): Use highest_line as
+ the location.
+ * include/cpplib.h (cpp_read_main_file): Add injecting parm.
+ * init.c (cpp_read_main_file): Likewise, inform _cpp_stack_file.
+ * internal.h (enum include_type): Add IT_MAIN_INJECT.
+
+2020-05-29 H.J. Lu <hjl.tools@gmail.com>
+
+ PR bootstrap/95413
+ * configure: Regenerated.
+
+2020-05-23 David Edelsohn <dje.gcc@gmail.com>
+
+ * Makefile.in (AR): Substitute @AR@.
+ * configure.ac (CHECK_PROG AR): New.
+ * configure: Regenerate.
+
+2020-05-20 Nathan Sidwell <nathan@acm.org>
+
+ * internal.h (typedef _cpp_file): Delete, unnecessary in C++.
+ (enum _cpp_find_file_kind): New.
+ (_cpp_find_file): Use it, not 3 bools.
+ * files.c (_cpp_find_file): Use _cpp_find_file_kind enum, not
+ bools.
+ (cpp_make_system_header): Break overly long line.
+ (_cpp_stack_include, _cpp_fake_include)
+ (_cpp_do_file_change, _cpp_compare_file_date, _cpp_has_header): Adjust.
+ * init.c (cpp_read_main): Adjust _cpp_find_file call.
+
+2020-05-18 Nathan Sidwell <nathan@acm.org>
+
+ * include/cpplib.h (cpp_get_otions, cpp_get_callbacks)
+ (cpp_get_deps): Mark as PURE.
+ * include/line-map.h (get_combined_adhoc_loc)
+ (get_location_from_adhoc_loc, get_pure_location): Reformat decls.
+ * internal.h (struct lexer_state): Clarify comment.
+ * system.h: Remove now-unneeded bool hackery.
+ * files.c (_cpp_find_file): Store LOC not highest_location.
+
+ PR preprocessor/95149
+ * lex.c (struct lit_accum): New.
+ (bufring_append): Replace by lit_accum::append.
+ (lex_raw_string): Reimplement, using fragments of the old version.
+ (lex_string): Adjust lex_raw_string call.
+
+ PR preprocessor/95182
+ * macro.c (collect_args): Preserve EOFif we fell out of the main
+ file.
+ (cpp_get_token_1): Reformat a couple of short lines.
+
+2020-05-14 H.J. Lu <hongjiu.lu@intel.com>
+
+ * configure: Regenerated.
+
+2020-05-13 Jason Merrill <jason@redhat.com>
+
+ * include/cpplib.h (enum c_lang): Change CXX2A to CXX20.
+ * init.c, lex.c: Adjust.
+
+2020-05-12 Nathan Sidwell <nathan@acm.org>
+
+ EOF location is at end of file
+ PR preprocessor/95013
+ * lex.c (lex_raw_string): Process line notes before incrementing.
+ Correct incrementing condition. Adjust for new
+ _cpp_get_fresh_line EOF behaviour.
+ (_cpp_get_fresh_line): Do not pop buffer at EOF, increment line
+ instead.
+ (_cpp_lex_direct): Adjust for new _cpp_get_fresh_line behaviour.
+ (cpp_directive_only_process): Assert we got a fresh line.
+ * traditional.c (_cpp_read_logical_line_trad): Adjust for new
+ _cpp_get_fresh_line behaviour.
+
+2020-05-12 H.J. Lu <hongjiu.lu@intel.com>
+
+ * Makefile.in (CET_HOST_FLAGS): New.
+ (COMPILER): Add $(CET_HOST_FLAGS).
+ * configure.ac: Add GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) and
+ AC_SUBST(CET_HOST_FLAGS). Clear CET_HOST_FLAGS if jit isn't
+ enabled.
+ * aclocal.m4: Regenerated.
+ * configure: Likewise.
+
+2020-05-08 Nathan Sidwell <nathan@acm.org>
+
+ Reimplement directives only processing, support raw literals.
+ * directives-only.c: Delete.
+ * Makefile.in (libcpp_a_OBJS, libcpp_a_SOURCES): Remove it.
+ * include/cpplib.h (enum CPP_DO_task): New enum.
+ (cpp_directive_only_preprocess): Declare.
+ * internal.h (_cpp_dir_only_callbacks): Delete.
+ (_cpp_preprocess_dir_only): Delete.
+ * lex.c (do_peek_backslask, do_peek_next, do_peek_prev): New.
+ (cpp_directives_only_process): New implementation.
+
+2020-02-14 Jakub Jelinek <jakub@redhat.com>
+
+ Partially implement P1042R1: __VA_OPT__ wording clarifications
+ PR preprocessor/92319
+ * macro.c (expand_arg): Move declarations before vaopt_state
+ definition.
+ (class vaopt_state): Move enum update_type definition earlier. Remove
+ m_allowed member, add m_arg and m_update members.
+ (vaopt_state::vaopt_state): Change last argument from bool any_args
+ to macro_arg *arg, initialize m_arg and m_update instead of m_allowed.
+ (vaopt_state::update): When bumping m_state from 1 to 2 and m_update
+ is ERROR, determine if __VA_ARGS__ expansion has any non-CPP_PADDING
+ tokens and set m_update to INCLUDE if it has any, DROP otherwise.
+ Return m_update instead of m_allowed ? INCLUDE : DROP in m_state >= 2.
+ (replace_args, create_iso_definition): Adjust last argument to
+ vaopt_state ctor.
+
+2020-02-05 Martin Sebor <msebor@redhat.com>
+
+ * include/cpplib.h (cpp_builtin_type): Remove trailing comma to
+ avoid pedantic warnings in C++ 98 mode.
+
+2020-02-04 Jakub Jelinek <jakub@redhat.com>
+
+ * macro.c (builtin_has_include): Diagnose __has_include* use outside
+ of preprocessing directives.
+
+ PR preprocessor/93545
+ * macro.c (cpp_get_token_no_padding): New function.
+ (builtin_has_include): Use it instead of cpp_get_token. Don't check
+ SEEN_EOL.
+
+2020-02-01 Andrew Burgess <andrew.burgess@embecosm.com>
+
+ * configure: Regenerate.
+
+2020-01-28 Nathan Sidwell <nathan@acm.org>
+
+ PR preprocessor/93452
+ * internal.h (struct spec_nodes): Drop n__has_include{,_next}.
+ * directives.c (lex_macro_node): Don't check __has_include redef.
+ * expr.c (eval_token): Drop __has_include eval.
+ (parse_has_include): Move to ...
+ * macro.c (builtin_has_include): ... here.
+ (_cpp_builtin_macro_text): Eval __has_include{,_next}.
+ * include/cpplib.h (enum cpp_builtin_type): Add BT_HAS_INCLUDE{,_NEXT}.
+ * init.c (builtin_array): Add them.
+ (cpp_init_builtins): Drop __has_include{,_next} init here ...
+ * pch.c (cpp_read_state): ... and here.
+ * traditional.c (enum ls): Drop has_include states ...
+ (_cpp_scan_out_logical_line): ... and here.
+
+2020-01-27 Andrew Burgess <andrew.burgess@embecosm.com>
+
+ * configure: Regenerate.
+
+2020-01-24 Nathan Sidwell <nathan@acm.org>
+
+ * expr.c (parse_has_include): Remove bogus controlling macro code.
+
+2020-01-20 Nathan Sidwell <nathan@acm.org>
+
+ PR preprocessor/80005
+ * include/cpplib.h (BT_HAS_ATTRIBUTE): Fix comment.
+ * internal.h (struct lexer_state): Delete in__has_include field.
+ (struct spec_nodes): Rename n__has_include{,_next}__ fields.
+ (_cpp_defined_macro_p): New.
+ (_cpp_find_file): Add has_include parm.
+ * directives.c (lex_macro_node): Combine defined,
+ __has_inline{,_next} checking.
+ (do_ifdef, do_ifndef): Use _cpp_defined_macro_p.
+ (_cpp_init_directives): Refactor.
+ * expr.c (parse_defined): Use _cpp_defined_macro_p.
+ (eval_token): Adjust parse_has_include calls.
+ (parse_has_include): Add OP parameter. Reimplement.
+ * files.c (_cpp_find_file): Add HAS_INCLUDE parm. Use it to
+ inhibit error message.
+ (_cpp_stack_include): Adjust _cpp_find_file call.
+ (_cpp_fake_include, _cpp_compare_file_date): Likewise.
+ (open_file_failed): Remove in__has_include check.
+ (_cpp_has_header): Adjust _cpp_find_file call.
+ * identifiers.c (_cpp_init_hashtable): Don't init
+ __has_include{,_next} here ...
+ * init.c (cpp_init_builtins): ... init them here. Define as
+ macros.
+ (cpp_read_main_file): Adjust _cpp_find_file call.
+ * pch.c (cpp_read_state): Adjust __has_include{,_next} access.
+ * traditional.c (_cpp_scan_out_locgical_line): Likewise.
+
+ PR preprocessor/93306
+ * expr.c (parse_has_include): Refactor. Check skip_eval before
+ looking.
+
+2020-01-10 David Malcolm <dmalcolm@redhat.com>
+
+ * include/line-map.h (class diagnostic_path): New forward decl.
+ (rich_location::get_path): New accessor.
+ (rich_location::set_path): New function.
+ (rich_location::m_path): New field.
+ * line-map.c (rich_location::rich_location): Initialize m_path.
+
+2020-01-01 Jakub Jelinek <jakub@redhat.com>
+
+ Update copyright years.
+
+2019-12-18 David Malcolm <dmalcolm@redhat.com>
+
+ PR preprocessor/92982
+ * charset.c
+ (cpp_string_location_reader::cpp_string_location_reader): Delete
+ initialization of m_line_table.
+ * include/cpplib.h (cpp_string_location_reader::m_line_table):
+ Delete unused member.
+
+2019-12-14 Jakub Jelinek <jakub@redhat.com>
+
+ PR preprocessor/92919
+ * charset.c (wide_str_to_charconst): If str contains just the
+ NUL terminator, punt quietly.
+
+2019-12-09 David Malcolm <dmalcolm@redhat.com>
+
+ * include/line-map.h (label_text::label_text): Make private.
+ (label_text::borrow): New.
+ (label_text::take): New.
+ (label_text::take_or_copy): New.
+
+2019-12-09 Lewis Hyatt <lhyatt@gmail.com>
+
+ PR preprocessor/49973
+ * generated_cpp_wcwidth.h: New file generated by
+ ../contrib/unicode/gen_wcwidth.py, supports new cpp_wcwidth function.
+ * charset.c (compute_next_display_width): New function to help
+ implement display columns.
+ (cpp_byte_column_to_display_column): Likewise.
+ (cpp_display_column_to_byte_column): Likewise.
+ (cpp_wcwidth): Likewise.
+ * include/cpplib.h (cpp_byte_column_to_display_column): Declare.
+ (cpp_display_column_to_byte_column): Declare.
+ (cpp_wcwidth): Declare.
+ (cpp_display_width): New function.
+
+2019-11-14 Joseph Myers <joseph@codesourcery.com>
+
+ * charset.c (narrow_str_to_charconst): Make CPP_UTF8CHAR constants
+ unsigned for C.
+ * init.c (lang_defaults): Set utf8_char_literals for GNUC2X and
+ STDC2X.
+
+2019-11-07 Jakub Jelinek <jakub@redhat.com>
+
+ PR c++/91370 - Implement P1041R4 and P1139R2 - Stronger Unicode reqs
+ * charset.c (narrow_str_to_charconst): Add TYPE argument. For
+ CPP_UTF8CHAR diagnose whenever number of chars is > 1, using
+ CPP_DL_ERROR instead of CPP_DL_WARNING.
+ (wide_str_to_charconst): For CPP_CHAR16 or CPP_CHAR32, use
+ CPP_DL_ERROR instead of CPP_DL_WARNING when multiple char16_t
+ or char32_t chars are needed.
+ (cpp_interpret_charconst): Adjust narrow_str_to_charconst caller.
+
+2019-11-05 Tim van Deurzen <tim@kompiler.org>
+
+ * cpplib.h: Add spaceship operator for C++.
+ * lex.c: Implement conditional lexing of spaceship operator for C++20.
+
+2019-10-31 Jakub Jelinek <jakub@redhat.com>
+
+ PR preprocessor/92296
+ * internal.h (struct def_pragma_macro): Add is_builtin bitfield.
+ (_cpp_restore_special_builtin): Declare.
+ * init.c (_cpp_restore_special_builtin): New function.
+ * directives.c (do_pragma_push_macro): For NT_BUILTIN_MACRO
+ set is_builtin and don't try to grab definition.
+ (cpp_pop_definition): Use _cpp_restore_special_builtin to restore
+ builtin macros.
+
+2019-10-15 Nathan Sidwell <nathan@acm.org>
+
+ * include/line-map.h (struct maps_info_ordinary): Make cache
+ mutable.
+ (struct maps_info_macro): Likewise.
+ (LINEMAPS_CACHE): Remove non-ref accessor. Constify ref accessor.
+ (LINEMAPS_ORDINARY_CACHE, LINEMAPS_MACRO_CACHE): Likewise.
+ (LINEMAPS_ORDINARY_MAP_AT, LINEMAPS_MACRO_MAP_AT): Use
+ LINEMAPS_USED and LINEMAPS_MAP_AT.
+ (linemap_lookup): Constify line_map arg.
+ linemap.c (linemap_ordinary_map_lookup, linemap_macro_map_lookup):
+ Constify line_map arg.
+
+2019-10-11 Joseph Myers <joseph@codesourcery.com>
+
+ * include/cpplib.h (struct cpp_options): Add dfp_constants and
+ cpp_warn_c11_c2x_compat.
+ (enum cpp_warning_reason): Add CPP_W_C11_C2X_COMPAT.
+ * init.c (struct lang_flags): Add dfp_constants.
+ (lang_defaults): Set dfp_constants to 1 for GNUC2X and STDC2X and
+ 0 for other languages.
+ (cpp_set_lang): Set dfp_constants from language.
+ (cpp_create_reader): Set cpp_warn_c11_c2x_compat to -1.
+ * expr.c (interpret_float_suffix): Mention DFP constants as C2X in
+ comment.
+ (cpp_classify_number): Do not diagnose DFP constants for languages
+ setting dfp_constants, unless cpp_warn_c11_c2x_compat.
+
+2019-10-04 Nathan Sidwell <nathan@acm.org>
+
+ PR preprocessor/91991
+ * line-map.c (linemap_line_start): Clear max_column_hint if we run
+ out of locations.
+
+2019-10-02 Richard Biener <rguenther@suse.de>
+
+ * internal.h (enum include_type): Remove trailing comma.
+
+2019-10-02 Joseph Myers <joseph@codesourcery.com>
+
+ * include/cpplib.h (struct cpp_options): Add member scope.
+ * init.c (struct lang_flags, lang_defaults): Likewise.
+ (cpp_set_lang): Set scope member of pfile.
+ * lex.c (_cpp_lex_direct): Test CPP_OPTION (pfile, scope) not
+ CPP_OPTION (pfile, cplusplus) for creating CPP_SCOPE tokens.
+
+2019-09-26 Eric Botcazou <ebotcazou@adacore.com>
+
+ * charset.c (UCS_LIMIT): New macro.
+ (ucn_valid_in_identifier): Use it instead of a hardcoded constant.
+ (_cpp_valid_ucn): Issue a pedantic warning for UCNs larger than
+ UCS_LIMIT outside of identifiers in C and in C++2a or later.
+
+2019-09-19 Lewis Hyatt <lhyatt@gmail.com>
+
+ PR c/67224
+ * charset.c (_cpp_valid_utf8): New function to help lex UTF-8 tokens.
+ * internal.h (_cpp_valid_utf8): Declare.
+ * lex.c (forms_identifier_p): Use it to recognize UTF-8 identifiers.
+ (_cpp_lex_direct): Handle UTF-8 in identifiers and CPP_OTHER tokens.
+ Do all work in "default" case to avoid slowing down typical code paths.
+ Also handle $ and UCN in the default case for consistency.
+
+2019-08-30 Nathan Sidwell <nathan@acm.org>
+
+ New # semantics for popping to "" name.
+ libcpp/
+ * directives.c (do_linemarker): Popping to "" name means get the
+ name from the include stack..
+
+2019-09-05 Nathan Sidwell <nathan@acm.org>
+
+ PR preprocessor/91639
+ * directives.c (do_include_common): Tell lexer we're a #include.
+ * files.c (_cpp_stack_file): Lexer will have always incremented.
+ * internal.h (struct cpp_context): Extend in_directive's
+ semantics.
+ * lex.c (_cpp_lex_direct): Increment line for final \n when lexing
+ for an ISO #include.
+ * line-map.c (linemap_line_start): Remember if we overflowed.
+
+2019-09-03 Ulrich Weigand <uweigand@de.ibm.com>
+
+ * directives.c: Remove references to spu from comments.
+ * expr.c: Likewise.
+
+2019-08-29 Nathan Sidwell <nathan@acm.org>
+
+ * internal.h (enum include_type): Add IT_MAIN, IT_DIRECTIVE_HWM,
+ IT_HEADER_HWM.
+ (_cpp_stack_file): Take include_type, not a bool.
+ * files.c (_cpp_find_file): Refactor to not hide an if inside a
+ for conditional.
+ (should_stack_file): Break apart to ...
+ (is_known_idempotent_file, has_unique_contents): ... these.
+ (_cpp_stack_file): Replace IMPORT boolean with include_type enum.
+ Refactor to use new predicates. Do linemap compensation here ...
+ (_cpp_stack_include): ... not here.
+ * init.c (cpp_read_main_file): Pass IT_MAIN to _cpp_stack_file.
+
+2019-08-28 Nathan Sidwell <nathan@acm.org>
+
+ * directives-only.c (_cpp_preprocess_dir_only): Use false, not
+ zero for _cpp_handle_directive call.
+ * directives.c (_cpp_handle_directive): Indented is bool.
+ * files.c (struct _cpp_file): Make bools 1 bit bitfields.
+ * internal.h (enum include_type): Reformat and comment.
+ (struct cpp_buffer): Make flags 1 bit bitfields.
+ (_cpp_handle_directive): Indented is bool.
+
+2019-07-09 Martin Sebor <msebor@redhat.com>
+
+ * include/line-map.h: Change class-key from class to struct and vice
+ versa to match convention and avoid -Wclass-is-pod and -Wstruct-no-pod.
+ * mkdeps.c: Same.
+
+2019-07-03 Martin Liska <mliska@suse.cz>
+
+ * line-map.c (linemap_get_expansion_filename): Remove
+ dead assignemts.
+ * mkdeps.c (make_write): Likewise.
+
+2019-07-02 qing zhao <qing.zhao@oracle.com>
+
+ PR preprocessor/90581
+ * directives.c (do_include_common): Replace CPP_STACK_MAX with
+ CPP_OPTION (pfile, max_include_depth).
+ * include/cpplib.h (struct cpp_options): Add new field
+ max_include_depth.
+ * init.c (cpp_create_reader): Initiate new field max_include_depth.
+ * internal.h: Delete CPP_STACK_MAX.
+
+2019-06-26 Nathan Sidwell <nathan@acm.org>
+
+ PR preprocessor/90927
+ * mkdeps.c (mkdeps::vec::operator[]): Add non-const variant.
+ (deps_add_target): Deal with out of order unquoted targets.
+
+2019-05-19 Andrew Pinski <apinski@marvell.com>
+
+ PR pch/81721
+ * lex.c (cpp_token_val_index <case SPELL_OPERATOR>): If tok->flags
+ has NAMED_OP set, then return CPP_TOKEN_FLD_NODE.
+
+2019-05-14 Martin Liska <mliska@suse.cz>
+
+ PR preprocessor/90382
+ * line-map.c (first_map_in_common_1): Handle ADHOC
+ locations.
+
+2019-05-14 Martin Liska <mliska@suse.cz>
+
+ PR preprocessor/90382
+ * include/line-map.h (get_data_from_adhoc_loc): Add const to
+ the first argument.
+ (get_location_from_adhoc_loc): Likewise.
+ * line-map.c(get_data_from_adhoc_loc): Add const to
+ the first argument.
+ (get_location_from_adhoc_loc): Likewise.
+ (get_combined_adhoc_loc): Use get_location_from_adhoc_loc
+ (or get_data_from_adhoc_loc).
+ (get_range_from_adhoc_loc): Likewise.
+ (get_pure_location): Likewise.
+ (linemap_position_for_loc_and_offset): Likewise.
+ (linemap_lookup): Likewise.
+ (linemap_ordinary_map_lookup): Likewise.
+ (linemap_macro_map_lookup): 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_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.
+
+2019-05-07 Nathan Sidwell <nathan@acm.org>
+
+ * files.c (_cpp_stack_file): Empty filenames aren't dependencies.
+ * mkdeps.c (deps_add_dep): Assert not empty.
+
+ * include/mkdeps.h (deps_write): Add PHONY arg.
+ (deps_phony_targets): Delete.
+ * init.c (cpp_finish): Just call deps_write.
+ * mkdeps.c (struct mkdeps): Add local vector class. Reimplement
+ vector handling.
+ (munge): Munge to static buffer.
+ (apply_vpath): Adjust vector handling.
+ (deps_init, deps_free): Use new, delete.
+ (deps_add_target): Do not munge here. Record quoting low water mark.
+ (deps_add_dep): Do not munge here.
+ (deps_add_vpath): Adjust vector handling.
+ (make_write_name): New. Munge on demand here.
+ (make_write_vec): New.
+ (deps_phony_targets): Delete.
+ (make_write): New.
+ (deps_write): Forward to deps_Write.
+ (deps_save, deps_restore): Adjust vector handling.
+
+2019-05-06 Nathan Sidwell <nathan@acm.org>
+
+ * include/mkdeps.h: Rename struct deps to struct mkdeps.
+ * mkdeps.c: Likewise.
+ * include/cpplib.h (cpp_get_deps): Rename return type..
+ * directives.c (cpp_get_deps): Likewise.
+ * internal.h (struct cpp_reader): Rename deps field type.
+
+2019-04-03 Jonathan Wakely <jwakely@redhat.com>
+
+ * files.c (search_path_exhausted): Fix typo in comment.
+
+2019-02-26 Martin Liska <mliska@suse.cz>
+
+ * symtab.c (ht_dump_statistics): Make
+ horizontal alignment for statistics.
+
+2019-02-20 David Malcolm <dmalcolm@redhat.com>
+
+ PR c/89410
+ * include/line-map.h (linenum_arith_t): New typedef.
+ (compare): Use it.
+
+2019-02-18 Martin Liska <mliska@suse.cz>
+
+ PR c++/89383
+ * line-map.c (linemap_line_start): Use 1UL in order
+ to not overflow.
+
+2019-02-11 Martin Liska <mliska@suse.cz>
+
+ PR lto/88147
+ * line-map.c (linemap_line_start): Don't reuse the existing line
+ map if the line offset is sufficiently large to cause overflow
+ when computing location_t values.
+
+2019-01-26 Jakub Jelinek <jakub@redhat.com>
+
+ PR preprocessor/88974
+ * directives.c (SEEN_EOL): Move macro to ...
+ * internal.h (SEEN_EOL): ... here.
+ * expr.c (parse_has_include): Don't cpp_get_token if SEEN_EOL ().
+
+2019-01-01 Jakub Jelinek <jakub@redhat.com>
+
+ Update copyright years.
+
+2018-11-27 Mike Gulick <mgulick@mathworks.com>
+
+ PR preprocessor/83173
+ * location-example.txt: Update example -fdump-internal-locations
+ output.
+
+2018-11-27 Mike Gulick <mgulick@mathworks.com>
+
+ PR preprocessor/83173
+ * files.c (_cpp_stack_include): Check if
+ line_table->highest_location is past current line before
+ decrementing.
+
+2018-11-13 David Malcolm <dmalcolm@redhat.com>
+
+ * charset.c: Replace "source_location" with "location_t".
+ * directives-only.c: Likewise.
+ * directives.c: Likewise.
+ * errors.c: Likewise.
+ * expr.c: Likewise.
+ * files.c: Likewise.
+ * include/cpplib.h: Likewise. Rename MAX_SOURCE_LOCATION to
+ MAX_LOCATION_T.
+ * include/line-map.h: Likewise.
+ * init.c: Likewise.
+ * internal.h: Likewise.
+ * lex.c: Likewise.
+ * line-map.c: Likewise.
+ * location-example.txt: Likewise.
+ * macro.c: Likewise.
+ * pch.c: Likewise.
+ * traditional.c: Likewise.
+
+2018-11-07 Hafiz Abid Qadeer <abidh@codesourcery.com>
+
+ * configure: Regenerated.
+
+2018-11-05 Martin Liska <mliska@suse.cz>
+
+ * symtab.c (ht_dump_statistics): Replace %zu with %lu format.
+
+2018-11-05 Martin Liska <mliska@suse.cz>
+
+ * symtab.c (ht_dump_statistics): Fix format and
+ pass missing argument.
+
+2018-11-05 Martin Liska <mliska@suse.cz>
+
+ * symtab.c (ht_dump_statistics): Make dump conditional
+ based on alloc_subobject.
+
+2018-10-31 Joseph Myers <joseph@codesourcery.com>
+
+ PR bootstrap/82856
+ * configure.ac: Remove AC_PREREQ. Use AC_LANG_SOURCE.
+ * aclocal.m4, config.in, configure: Regenerate.
+
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