"-gnatwi " &
"NOIMPLEMENTATION " &
"-gnatwI " &
+ "OVERLAPPING_ACTUALS " &
+ "-gnatw.i " &
+ "NOOVERLAPPING_ACTUALS " &
+ "-gnatw.I " &
"OBSOLESCENT " &
"-gnatwj " &
"NOOBSOLESCENT " &
"-gnatwl " &
"NOELABORATION " &
"-gnatwL " &
+ "INHERITED_ASPECTS " &
+ "-gnatw.l " &
+ "NOINHERITED_ASPECTS " &
+ "-gnatw.L " &
"MODIFIED_UNREF " &
"-gnatwm " &
"NOMODIFIED_UNREF " &
"-gnatw.M " &
"NORMAL " &
"-gnatwn " &
+ "ATOMIC_SYNCHRONIZATION " &
+ "-gnatw.n " &
+ "NOATOMIC_SYNCHRONIZATION " &
+ "-gnatw.N " &
"OVERLAYS " &
"-gnatwo " &
"NOOVERLAYS " &
"-gnatwp " &
"NOINEFFECTIVE_INLINE " &
"-gnatwP " &
- "MISSING_PARENS " &
- "-gnatwq " &
"PARAMETER_ORDER " &
"-gnatw.p " &
"NOPARAMETER_ORDER " &
"-gnatw.P " &
+ "MISSING_PARENS " &
+ "-gnatwq " &
"NOMISSING_PARENS " &
"-gnatwQ " &
"REDUNDANT " &
"-gnatwt " &
"NODELETED_CODE " &
"-gnatwT " &
+ "SUSPICIOUS_CONTRACT " &
+ "-gnatw.t " &
+ "NOSUSPICIOUS_CONTRACT " &
+ "-gnatw.T " &
"UNINITIALIZED " &
"-Wuninitialized " &
"UNUSED " &
"-gnatw.x " &
"NOLOCAL_RAISE_HANDLING " &
"-gnatw.X " &
- "ADA_2005_COMPATIBILITY " &
+ "ADA_COMPATIBILITY " &
"-gnatwy " &
- "NOADA_2005_COMPATIBILITY " &
+ "NOADA_COMPATIBILITY " &
"-gnatwY " &
"WHY_SPEC_NEEDS_BODY " &
"-gnatw.y " &
-- error. Second, if the compiler detects a situation that is sure to
-- raise an exception at runtime, it generates a warning message.
--
- -- You may specify the following keywords to change this behavior:
- --
- -- DEFAULT (D) The default behavior above.
- --
- -- ALL Activate all optional warnings.
- -- Activates most optional warning messages,
- -- see remaining list in this section for
- -- details on optional warning messages that
- -- can be individually controlled.
- -- The warnings that are not turned on by
- -- this option are BIASED_ROUNDING,
- -- IMPLICIT_DEREFERENCE, HIDING and
- -- ELABORATION. All other optional Ada
- -- warnings are turned on.
- --
- -- EVERY Activate every optional warning.
- -- Activates all optional warnings, including
- -- those listed above as exceptions for ALL.
- --
- -- NOALL Suppress all optional errors.
- -- Suppresses all optional warning messages
- -- that can be activated by option ALL.
- --
- -- ALL_GCC Request additional messages from the GCC
- -- backend. Most of these are not relevant
- -- to Ada.
- --
- -- CONDITIONALS Activate warnings for conditional
- -- Expressions used in tests that are known
- -- to be True or False at compile time. The
- -- default is that such warnings are not
- -- generated.
+ -- You may specify the following keywords to change this behavior.
+ --
+ -- DEFAULT (D) The default behavior. This includes the
+ -- following categories of warnings:
+ --
+ -- ADA_COMPATIBILITY
+ -- ADDRESS_CLAUSE_OVERLAY
+ -- BIASED_REPRESENTATION
+ -- IMPORT_EXPORT_PRAGMAS
+ -- FAILING_ASSERTIONS
+ -- IMPLEMENTATION
+ -- LOWBOUND_ASSUMED
+ -- MISSING_PARENS
+ -- OVERLAPPING_ACTUALS
+ -- REVERSE_BIT_ORDER
+ -- SUSPICIOUS_CONTRACT
+ -- SUSPICIOUS_MODULUS
+ -- UNCHECKED_CONVERSIONS
+ -- UNRECOGNIZED_PRAGMA
+ -- VARIABLES_UNINITIALIZED
+ --
+ -- as well as all warnings that cannot be
+ -- individually suppressed.
+ --
+ -- ALL Activate all optional warnings.
+ -- Activates the most commong used optional
+ -- warning messages. The warnings that are not
+ -- turned on by this are:
+ --
+ -- ADDRESS_CLAUSE_OVERLAY
+ -- ATOMIC_SYNCHRONIZATION
+ -- AVOID_GAPS
+ -- BAD_FIXED_VALUE
+ -- BIASED_ROUNDING
+ -- DELETED_CODE
+ -- ELABORATION
+ -- HIDING
+ -- IMPLICIT_DEREFERENCE
+ -- INHERITED_ASPECTS
+ -- OUT_PARAM_UNREF
+ -- OVERLAPPING_ACTUALS
+ -- OVERRIDING_SIZE
+ -- STANDARD_REDEFINITION
+ -- SUSPICIOUS_MODULUS
+ -- UNORDERED_ENUMERATION
+ -- WARNINGS_OFF_PRAGMAS
+ -- WHY_BODY_NEEDED
+ --
+ -- All other optional warnings are turned on.
+ --
+ -- OPTIONAL Turn on standard optional warnings.
+ -- This has the same effect as ALL.
+ --
+ -- NOALL Suppress all optional errors.
+ -- Suppresses all optional warning messages
+ -- including those not activated by ALL.
+ --
+ -- NOOPTIONAL Turn off standard optional warnings.
+ -- This has the same effect as NOALL
+ --
+ -- EVERY Activate every optional warning.
+ -- Activates all optional warnings, including
+ -- those listed above as exceptions for ALL.
+ --
+ -- ALL_GCC Request additional messages from the GCC
+ -- backend. Most of these are not Ada-relevant.
+ --
+ -- UNINITIALIZED Activate warnings for uninitialized
+ -- variables. This is a GCC option, not an Ada
+ -- option. You must also specify the /OPTIMIZE
+ -- qualifier with a value other than NONE (in
+ -- other words, this option is effective only
+ -- if optimization is turned on).
+
+ -- ERRORS Warning messages are to be treated as errors.
+ -- The warning string still appears, but the
+ -- warning messages are counted as errors, and
+ -- prevent the generation of an object file.
+ --
+ -- SUPPRESS Completely suppress the output of all warning
+ -- messages. Same as /NOWARNINGS.
+ --
+ -- NORMAL Sets normal warning mode, in which enabled
+ -- warnings are issued and treated as warnings
+ -- rather than errors. This is the default mode.
+ -- It can be used to cancel the effect of an
+ -- explicit /WARNINGS=SUPPRESS or
+ -- /WARNINGS=ERRORS. It also cancels the effect
+ -- of the implicit /WARNINGS=ERRORS that is
+ -- activated by the use of /STYLE=GNAT.
+ --
+ -- TAG_WARNINGS Causes the string [xxx] to be added to
+ -- warnings that are controlled by the warning
+ -- switch -gnat??. See below for list of these
+ -- equivalent switch names.
--
- -- NOCONDITIONALS Suppress warnings for conditional
- -- expressions used in tests that are known
- -- to be True or False at compile time.
+ -- NOTAG_WARNINGS Turns off warning tag output (default setting).
--
- -- IMPLICIT_DEREFERENCE Activate warnings on implicit dereferencing.
- -- The use of a prefix of an access type in an
- -- indexed component, slice, or selected component
- -- without an explicit .all will generate
- -- a warning. With this warning enabled, access
- -- checks occur only at points where an explicit
- -- .all appears in the source code (assuming no
- -- warnings are generated as a result of this
- -- option). The default is that such warnings are
- -- not generated. Note that /WARNINGS=ALL does not
- -- affect the setting of this warning option.
- --
- -- NOIMPLICIT_DEREFERENCE Suppress warnings on implicit dereferencing.
- -- in indexed components, slices, and selected
- -- components.
- --
- -- ELABORATION Activate warnings on missing pragma
- -- Elaborate_All statements. The default is
- -- that such warnings are not generated.
- --
- -- NOELABORATION Suppress warnings on missing pragma
- -- Elaborate_All statements.
- --
- -- ERRORS Warning messages are to be treated as errors.
- -- The warning string still appears, but the
- -- warning messages are counted as errors, and
- -- prevent the generation of an object file.
+ -- The remaining entries control individual warning categories. If one
+ -- of these options is preceded by NO (e.g. NOAVOID_GAPS), then the
+ -- corresponding class of warnings is suppressed. The -gnatwxx tag
+ -- below the name indicates the non-VMS warning switch option. This is
+ -- used in the warning tags generated by TAG_WARNINGS (above)
+ --
+ -- ADA_COMPATIBILITY Activate warnings for Ada compatibility issues.
+ -- (-gnatwy) This generates warnings for usages which are
+ -- legal, but may cause difficulties with later
+ -- Ada versions (e.g. the use of INTERFACE as an
+ -- identifier, which is legal in Ada 85, but in
+ -- Ada 2005, this is a reserved word).
+ --
+ -- ATOMIC_SYNCHRONIZATION Activate info msgs for atomic synchronization.
+ -- (-gnatw.n) This generates information messages when an
+ -- access to an atomic variable requires the
+ -- generation of atomic synchronization code.
+ --
+ -- AVOID_GAPS Activate warnings for gaps in records.
+ -- (-gnatw.h) This outputs a warning if a representation
+ -- clause for a record leaves unallocated bits.
+ --
+ -- BAD_FIXED_VALUES Activate warnings on bad fixed values.
+ -- (-gnatwb) When this is enabled, a fixed-type literal
+ -- will generate a warning if its value does not
+ -- correspond to an exact value of the type and
+ -- is thus subject to rounding.
+ --
+ -- BIASED_REPRESENTATION Activate warnings for biased representations.
+ -- (-gnatw.b) A warning will be generated if a size clause
+ -- or a component clause forces use of a biased
+ -- representation (e.g. range 1..5 with size 2).
+ --
+ -- CONDITIONALS Activate warnings for conditional expressions
+ -- (-gnatwc) in tests where the expression is known to
+ -- be True or False at compile time.
+ --
+ -- DELETED_CODE Activate warning for conditional deleted code.
+ -- (-gnatwt) This option generates warnings for tracking of
+ -- code in conditionals (IF and CASE statements)
+ -- that is detected to be dead code which cannot
+ -- be executed, and which is removed by the
+ -- front end. This may be useful for detecting
+ -- deactivated code in certified applications.
+ --
+ -- CONSTANT_VARIABLES Activate warnings on constant variables.
+ -- (-gnatwk) A warning is output for a variable which could
+ -- have been declared as a constant.
+ --
+ -- ELABORATION Activate warnings on missing pragma Elaborate
+ -- (-gnatwl) and Elaborate_All statements.
+ --
+ -- FAILING_ASSERTIONS Activate warnings on failing assertions.
+ -- (-gnatw.a) Generates a warning for assertions that are
+ -- sure to fail.
--
-- HIDING Activate warnings on hiding declarations.
- -- A declaration is considered hiding if it is
- -- for a non-overloadable entity, and it declares
+ -- (-gnatwh) A declaration is considered hiding if it is
+ -- for a non-overloadable entity, and declares
-- an entity with the same name as some other
- -- entity that is directly or use-visible. The
- -- default is that such warnings are not
- -- generated.
+ -- entity that is directly or use-visible.
--
- -- NOHIDING Suppress warnings on hiding declarations.
+ -- IMPORT_EXPORT_PRAGMAS Activate warnings on import-export pragmas.
+ -- (-gnatwx) This generates a warning on an Export or Import
+ -- pragma when the compiler detects a possible
+ -- conflict between the Ada and foreign language
+ -- calling sequences. For example, the use of
+ -- default parameters in a convention C procedure
+ -- is dubious because the C compiler cannot supply
+ -- the proper default, so a warning is issued.
--
-- IMPLEMENTATION Activate warnings for a with of an internal
- -- GNAT implementation unit, defined as any unit
- -- from the Ada, Interfaces, GNAT, DEC or
- -- System hierarchies that is not documented in
- -- either the Ada Reference Manual or the GNAT
- -- Programmer's Reference Manual. Such units are
- -- intended only for internal implementation
- -- purposes and should not be with'ed by user
- -- programs. The default is that such warnings
- -- are generated.
- --
- -- NOIMPLEMENTATION Disables warnings for a with of an internal
- -- GNAT implementation unit.
- --
- -- INEFFECTIVE_INLINE Activate warnings on ineffective pragma Inlines
- -- Activates warnings for failure of front end
- -- inlining (activated by /INLINE=FULL) to inline
- -- a particular call. There are many reasons for
- -- not being able to inline a call, including most
+ -- (-gnatwi) GNAT implementation unit, defined as any unit
+ -- from the Ada, Interfaces, GNAT, DEC or System
+ -- hierarchies that is not documented in the
+ -- Ada Reference Manual or the GNAT Programmer's
+ -- Reference Manual. Such units are intended only
+ -- for internal implementation purposes and may
+ -- change from version to veresion, and should
+ -- not be with'ed by user programs.
+ --
+ -- IMPLICIT_DEREFERENCE Activate warnings on implicit dereferencing.
+ -- (-gnatwd) The use of a prefix of an access type in an
+ -- indexed component, slice, or selected component
+ -- without an explicit .all will generate a
+ -- warning. When this warning is enabled, and no
+ -- warnings of this type are generated, access
+ -- checks occur only at points where the source
+ -- program contains an explicit use of .all.
+ --
+ -- INEFFECTIVE_INLINE Activate warnings on ineffective Inlines.
+ -- (-gnatwp) Activates warnings for failure of front end
+ -- inlining (activated by /INLINE=FULL) to
+ -- inline a particular call when a pragma Inline
+ -- applies. There are many reasons for not
+ -- being able to inline a call, including most
-- commonly that the call is too complex to
-- inline. This warning can also be turned on
-- using /INLINE=FULL.
--
- -- NOINEFFECTIVE_INLINE Suppress warnings on ineffective pragma Inlines
- -- Suppresses warnings on ineffective pragma
- -- Inlines. If the inlining mechanism cannot
- -- inline a call, it will simply ignore the
- -- request silently.
+ -- INHERITED_ASPECTS Activate info messages for inherited aspects.
+ -- (-gantw.l) Outputs information messages for tagged types
+ -- that inherit aspects from a parent.
--
- -- MISSING_COMPONENT_CLAUSES
- -- Activate warnings for cases when there are
- -- component clauses for a record type, but not
- -- for every component of the record.
+ -- LOCAL_RAISE_HANDLING Activate warnings for No_Exception_Propagation.
+ -- (-gnatw.x) This generates warnings for exception usage
+ -- when the No_Exception_Propagation restriction
+ -- is in effect. Warnings are given for implicit
+ -- or explicit exception raises which are not
+ -- covered by a local handler, and for exception
+ -- handlers which do not cover a local raise.
--
- -- NOMISSING_COMPONENT_CLAUSES
- -- Suppress warnings for cases when there are
- -- missing component clauses for a record type.
+ -- LOWBOUND_ASSUMED Activate warnings for low bound assumptions.
+ -- (-gnatww) Outputs warnings if code appears to depend on
+ -- an assumption about the lower bound of one of
+ -- the subprogram parameters (for example using
+ -- S(1 .. 5) instead of S(S'First .. S'First + 4).
--
- -- MISSING_PARENS
- -- Activate warnings for cases where parentheses
+ -- MISSING_COMPONENT_CLAUSES
+ -- (-gnatw.c) Activate warnings for unrepped component.
+ -- Generates a warning for a record component
+ -- which does not have a component clause if
+ -- at least one component claused is present
+ -- for some other component of the record.
+ --
+ -- MISSING_PARENS Activate warnings for missing parentheses.
+ -- (-gnatwq) Outputs a warning for cases where parentheses
-- are not used and the result is potential
-- ambiguity from a reader's point of view.
-- For example (not a > b) when a and b are
-- modular means (not (a) > b) and very likely
-- the programmer intended (not (a > b)).
--
- -- NOMISSING_PARENS
- -- Suppress warnings for cases where parentheses
- -- are not used and the result is potential
- -- ambiguity from a reader's point of view.
- --
- -- MODIFIED_UNREF Activates warnings for variables that are
- -- assigned (using an initialization value or with
- -- one or more assignment statements) but whose
- -- value is never read. The warning is suppressed
- -- for volatile variables and also for variables
+ -- MODIFIED_UNREF Activate warning for assigned but not read.
+ -- (-gnatwm) Outputs a warning for variables that are
+ -- assigned (using an initialization value or an
+ -- assignment statements) but whose value is
+ -- never read. The warning is suppressed for
+ -- volatile variables and also for variables
-- that are renamings of other variables or for
- -- which an address clause is given. This warning
- -- can also be turned on using /WARNINGS/OPTIONAL.
- --
- -- NOMODIFIED_UNREF Disables warnings for variables that are
- -- assigned or initialized, but never read.
+ -- which an address clause is given.
--
- -- NORMAL Sets normal warning mode, in which enabled
- -- warnings are issued and treated as warnings
- -- rather than errors. This is the default mode.
- -- It can be used to cancel the effect of an
- -- explicit /WARNINGS=SUPPRESS or
- -- /WARNINGS=ERRORS. It also cancels the effect
- -- of the implicit /WARNINGS=ERRORS that is
- -- activated by the use of /STYLE=GNAT.
+ -- OBJECT_RENAME Activate warnings for non limited objects
+ -- (-gnatw.r) renaming parameterless functions.
--
-- OBSOLESCENT Activates warnings for calls to subprograms
- -- marked with pragma Obsolescent and for use of
+ -- (-gnatwj) marked with pragma Obsolescent and for use of
-- features in Annex J of the Ada Reference
-- Manual. In the case of Annex J, not all
- -- features are flagged. In particular use of the
- -- renamed packages (like Text_IO), use of package
- -- ASCII and use of the attribute 'Constrained are
- -- not flagged, since these are very common and
- -- would generate many annoying positive warnings.
- -- The default is that such warnings are not
- -- generated.
- --
- -- NOOBSOLESCENT Disables warnings on use of obsolescent
- -- features.
- --
- -- OBJECT_RENAME Activate warnings for non limited objects
- -- renaming parameterless functions.
- --
- -- NOOBJECT_RENAME Suppress warnings for non limited objects
- -- renaming parameterless functions.
- --
- -- OPTIONAL Equivalent to ALL.
- --
- -- NOOPTIONAL Equivalent to NOALL.
+ -- features are flagged. In particular use of
+ -- the renamed packages (like Text_IO), use of
+ -- package ASCII, and use of the attribute
+ -- 'Constrained are not flagged, since these are
+ -- common and would generate many annoying
+ -- false-positive warnings.
+ --
+ -- OUT_PARAM_UNREF Activate warnings on unreferenced OUT params.
+ -- (-gantw.o) This switch activates warnings for variables
+ -- that are modified by using them as actuals for
+ -- a call to a procedure with an out mode formal,
+ -- where the resulting assigned value is never
+ -- read. It is applicable in the case where there
+ -- is more than one out mode formal. If there is
+ -- only one out mode formal, the warning is issued
+ -- by default (controlled by UNUSED). The warning
+ -- is suppressed for volatile variables and also
+ -- for variables that are renamings of other
+ -- variables or for which an address clause
+ -- is given.
+ --
+ -- OVERLAPPING_ACTUALS Activate warnings on overlapping actuals.
+ -- (-gnatw.i) Enables a warning on statically detectable
+ -- overlapping actuals in a subprogram call,
+ -- when one of the actuals is an in-out
+ -- parameter, and the types of the actuals
+ -- are not by-copy types.
--
-- OVERLAYS Activate warnings for possibly unintended
- -- initialization effects of defining address
- -- clauses that cause one variable to overlap
- -- another. The default is that such warnings
- -- are generated.
- --
- -- NOOVERLAYS Suppress warnings on possibly unintended
- -- initialization effects of defining address
+ -- (-gnatwo) initialization effects of defining address
-- clauses that cause one variable to overlap
-- another.
--
- -- REDUNDANT Activate warnings for redundant constructs.
- -- In particular assignments of a variable to
- -- itself, and a type conversion that converts
- -- an object to its own type. The default
- -- is that such warnings are not generated.
+ -- OVERRIDING_SIZE Activate warning on overridden size clause.
+ -- (-gnatw.s) Generates a warning if an explicit size clause
+ -- is overridden by a component clause in a record
+ -- or a component size in an array.
--
- -- NOREDUNDANT Suppress warnings for redundant constructs.
+ -- PARAMETER_ORDER Activate warnings for suspicious parameter
+ -- (-gnatw.p) ordering. A warning is generated if positional
+ -- ordering is used and the actuals match the
+ -- formal names, but are in the wrong order (e.g.
+ -- GEN (B, A), when the formals of GEN are A, B.)
+ -- No warning is generated for named parameters,
+ -- so GEN (A => B, B => A) would be allowed.
--
- -- SUPPRESS Completely suppress the output of all warning
- -- messages. Same as /NOWARNINGS.
+ -- REDUNDANT Activate warnings for redundant constructs.
+ -- (-gnatwr) In particular assignments of a variable to
+ -- itself, and a type conversion that converts
+ -- an object to its own type.
+ --
+ -- REVERSE_BIT_ORDER Activates info messages for reverse bit order.
+ -- (-gnatw.v) Generates information messages that show the
+ -- effect of specifying reverse bit order for
+ -- a record on individual components.
+ --
+ -- STANDARD_REDEFINITION Activate warnings on standard redefinition.
+ -- (-gnatw.k) Generates a warning message if a declaration
+ -- declares an identifier that matches one that
+ -- is declared in package Standard (e.g. Float).
+ --
+ -- SUSPICIOUS_CONTRACT Activate warnings on suspicious postconditions.
+ -- (-gnatw.t) This generates warnings if a postcondition for
+ -- a function does not mention the result, or if
+ -- a postcondition for a procedure depends only on
+ -- the entry values of the parameters.
+ --
+ -- SUSPICIOUS_MODULUS Warn on suspicious modulus values, for
+ -- (-gnatw.m) example "mod 7" is suspicious for a size with
+ -- 7 bits, since it was likely intended to be
+ -- "mod 2**7". Similarly "mod 32" is considered
+ -- suspicious, since it was likely intended to
+ -- be "mod 2**32".
--
-- UNCHECKED_CONVERSIONS Activates warnings on unchecked conversions.
- -- Causes warnings to be generated for
- -- unchecked conversions when the two types are
- -- known at compile time to have different sizes.
- -- The default is that such warnings are
- -- generated.
+ -- (-gnatwz) Causes warnings to be generated for unchecked
+ -- conversions between types that are known at
+ -- compile time to have different sizes.
--
- -- NOUNCHECKED_CONVERSIONS Suppress warnings for unchecked conversions.
+ -- UNORDERED_ENUMERATION Activate warnings for unordered enumeration.
+ -- (-gnatw.u) Causes warnings to be generated if for an
+ -- enumeration type that does not have a pragma
+ -- Ordered that applies, if a subtype with a
+ -- range is used, or a comparison other than
+ -- [in]equality appears for values of the type.
--
- -- UNINITIALIZED Generate warnings for uninitialized variables.
- -- This is a GCC option, not an Ada option.
- -- You must also specify the /OPTIMIZE qualifier
- -- with a value other than NONE (in other words,
- -- this keyword works only if optimization is
- -- turned on).
+ -- UNRECOGNIZED_PRAGMAS Activate warnings for unrecognized pragmas.
+ -- (-gnatwg) Such pragmas are ignored other than generating
+ -- these warnings.
--
-- UNREFERENCED_FORMALS Activate warnings on unreferenced formals.
- -- Causes a warning to be generated if a formal
+ -- (-gnatwf) Causes a warning to be generated if a formal
-- parameter is not referenced in the body of
- -- the subprogram. This warning can also be turned
- -- on using option ALL or UNUSED.
- --
- -- NOUNREFERENCED_FORMALS Suppress warnings on unreferenced formals.
- -- Suppresses warnings for unreferenced formal
- -- parameters. Note that the combination UNUSED
- -- followed by NOUNREFERENCED_FORMALS has the
- -- effect of warning on unreferenced entities
- -- other than subprogram formals.
+ -- the subprogram. Note that the combination
+ -- UNUSED followed by NOUNREFERENCED_FORMALS
+ -- has the effect of warning on unreferenced
+ -- entities other than subprogram formals.
--
-- UNUSED Activates warnings to be generated for entities
- -- that are defined but not referenced, and for
+ -- (-gantwu) that are defined but not referenced, and for
-- units that are with'ed and not referenced. In
-- the case of packages, a warning is also
-- generated if no entities in the package are
-- referenced. This means that if the package
-- is referenced but the only references are in
- -- use clauses or renames declarations, a warning
- -- is still generated. A warning is also generated
- -- for a generic package that is with'ed but never
- -- instantiated. In the case where a package or
- -- subprogram body is compiled, and there is a
- -- with on the corresponding spec that is only
- -- referenced in the body, a warning is also
- -- generated, noting that the with can be moved
- -- to the body. The default is that such warnings
- -- are not generated.
- --
- -- NOUNUSED Suppress warnings for unused entities and
- -- packages.
+ -- in use clauses or renames declarations, a
+ -- warning is still generated. A warning is also
+ -- generated for a generic package that is
+ -- with'ed but never instantiated. In the case
+ -- where a package or subprogram body is
+ -- compiled, and there is a with on the
+ -- corresponding spec that is only referenced
+ -- in the body, a warning is also generated,
+ -- noting the with can be moved to the body.
--
-- VARIABLES_UNINITIALIZED Activates warnings on unassigned variables.
- -- Causes warnings to be generated when a variable
- -- is accessed which may not be properly
- -- uninitialized. The default is that such
- -- warnings are generated.
- --
- -- NOVARIABLES_UNINITIALIZED
- -- Suppress warnings for uninitialized variables.
+ -- (-gnatwv) Causes warnings to be generated when a
+ -- variable is accessed which may not be
+ -- properly initialized.
--
- -- TAG_WARNINGS Causes the string [xxx] to be added to warnings
- -- that are controlled by the warning string xxx,
- -- e.g. [REDUNDANT], or if the warning is enabled
- -- by default, the tag is [enabled by default].
- --
- -- NOTAG_WARNINGS Turns off warning tag output (default setting).
+ -- WARNINGS_OFF_PRAGMAS Activates warnings for pragma Warnings (Off).
+ -- (-gnatw.w) This generates a warning if the specific string
+ -- version the pragma is used as a local pragma
+ -- (i.e. not a configuration pragma) and no
+ -- warning is suppressed as a result.
--
-- WHY_SPEC_NEEDS_BODY Generates information messages showing why a
- -- package specification requires a body.
+ -- (-gnatw.y) package specification requires a body.
--
- -- NO_WHY_SPEC_NEEDS_BODY Turns off information messages showing why a
- -- package specification requires a body.
-
S_GCC_WarnX : aliased constant S := "/NOWARNINGS " &
"-gnatws";
-- NODOC (see /WARNINGS)
projects / gcc.git / commitdiff