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- /* Copyright (C) 2017-2022 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
- #ifndef DIAGNOSTICS_H
- #define DIAGNOSTICS_H
- /* If at all possible, fix the source rather than using these macros
- to silence warnings. If you do use these macros be aware that
- you'll need to condition their use on particular compiler versions,
- which can be done for gcc using ansidecl.h's GCC_VERSION macro.
- gcc versions between 4.2 and 4.6 do not allow pragma control of
- diagnostics inside functions, giving a hard error if you try to use
- the finer control available with later versions.
- gcc prior to 4.2 warns about diagnostic push and pop.
- The other macros have restrictions too, for example gcc-5, gcc-6
- and gcc-7 warn that -Wstringop-truncation is unknown, unless you
- also add DIAGNOSTIC_IGNORE ("-Wpragma"). */
- #ifdef __GNUC__
- # define DIAGNOSTIC_PUSH _Pragma ("GCC diagnostic push")
- # define DIAGNOSTIC_POP _Pragma ("GCC diagnostic pop")
- /* Stringification. */
- # define DIAGNOSTIC_STRINGIFY_1(x) #x
- # define DIAGNOSTIC_STRINGIFY(x) DIAGNOSTIC_STRINGIFY_1 (x)
- # define DIAGNOSTIC_IGNORE(option) \
- _Pragma (DIAGNOSTIC_STRINGIFY (GCC diagnostic ignored option))
- # define DIAGNOSTIC_ERROR(option) \
- _Pragma (DIAGNOSTIC_STRINGIFY (GCC diagnostic error option))
- #else
- # define DIAGNOSTIC_PUSH
- # define DIAGNOSTIC_POP
- # define DIAGNOSTIC_IGNORE(option)
- #endif
- #if defined (__clang__) /* clang */
- # define DIAGNOSTIC_IGNORE_SELF_MOVE DIAGNOSTIC_IGNORE ("-Wself-move")
- # define DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS \
- DIAGNOSTIC_IGNORE ("-Wdeprecated-declarations")
- # define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER \
- DIAGNOSTIC_IGNORE ("-Wdeprecated-register")
- # if __has_warning ("-Wenum-compare-switch")
- # define DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES \
- DIAGNOSTIC_IGNORE ("-Wenum-compare-switch")
- # endif
- # define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL \
- DIAGNOSTIC_IGNORE ("-Wformat-nonliteral")
- # define DIAGNOSTIC_ERROR_SWITCH \
- DIAGNOSTIC_ERROR ("-Wswitch")
- #elif defined (__GNUC__) /* GCC */
- # if __GNUC__ >= 7
- # define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER \
- DIAGNOSTIC_IGNORE ("-Wregister")
- # endif
- # define DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION \
- DIAGNOSTIC_IGNORE ("-Wstringop-truncation")
- # define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL \
- DIAGNOSTIC_IGNORE ("-Wformat-nonliteral")
- /* GCC 4.8's "diagnostic push/pop" seems broken when using this, -Wswitch
- remains enabled at the error level even after a pop. Therefore, don't
- use it for GCC < 5. */
- # if __GNUC__ >= 5
- # define DIAGNOSTIC_ERROR_SWITCH DIAGNOSTIC_ERROR ("-Wswitch")
- # endif
- #endif
- #ifndef DIAGNOSTIC_IGNORE_SELF_MOVE
- # define DIAGNOSTIC_IGNORE_SELF_MOVE
- #endif
- #ifndef DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS
- # define DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS
- #endif
- #ifndef DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER
- # define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER
- #endif
- #ifndef DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES
- # define DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES
- #endif
- #ifndef DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION
- # define DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION
- #endif
- #ifndef DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL
- # define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL
- #endif
- #ifndef DIAGNOSTIC_ERROR_SWITCH
- # define DIAGNOSTIC_ERROR_SWITCH
- #endif
- #endif /* DIAGNOSTICS_H */
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