| 1 | /* Copyright (C) 2017-2021 Free Software Foundation, Inc.
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| 2 | 
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| 3 |    This program is free software; you can redistribute it and/or modify
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| 4 |    it under the terms of the GNU General Public License as published by
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| 5 |    the Free Software Foundation; either version 3 of the License, or
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| 6 |    (at your option) any later version.
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| 7 | 
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| 8 |    This program is distributed in the hope that it will be useful,
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| 9 |    but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 10 |    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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| 11 |    GNU General Public License for more details.
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| 12 | 
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| 13 |    You should have received a copy of the GNU General Public License
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| 14 |    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
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| 15 | 
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| 16 | #ifndef DIAGNOSTICS_H
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| 17 | #define DIAGNOSTICS_H
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| 18 | 
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| 19 | /* If at all possible, fix the source rather than using these macros
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| 20 |    to silence warnings.  If you do use these macros be aware that
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| 21 |    you'll need to condition their use on particular compiler versions,
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| 22 |    which can be done for gcc using ansidecl.h's GCC_VERSION macro.
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| 23 | 
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| 24 |    gcc versions between 4.2 and 4.6 do not allow pragma control of
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| 25 |    diagnostics inside functions, giving a hard error if you try to use
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| 26 |    the finer control available with later versions.
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| 27 |    gcc prior to 4.2 warns about diagnostic push and pop.
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| 28 | 
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| 29 |    The other macros have restrictions too, for example gcc-5, gcc-6
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| 30 |    and gcc-7 warn that -Wstringop-truncation is unknown, unless you
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| 31 |    also add DIAGNOSTIC_IGNORE ("-Wpragma").  */
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| 32 | 
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| 33 | #ifdef __GNUC__
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| 34 | # define DIAGNOSTIC_PUSH _Pragma ("GCC diagnostic push")
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| 35 | # define DIAGNOSTIC_POP _Pragma ("GCC diagnostic pop")
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| 36 | 
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| 37 | /* Stringification.  */
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| 38 | # define DIAGNOSTIC_STRINGIFY_1(x) #x
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| 39 | # define DIAGNOSTIC_STRINGIFY(x) DIAGNOSTIC_STRINGIFY_1 (x)
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| 40 | 
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| 41 | # define DIAGNOSTIC_IGNORE(option) \
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| 42 |   _Pragma (DIAGNOSTIC_STRINGIFY (GCC diagnostic ignored option))
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| 43 | #else
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| 44 | # define DIAGNOSTIC_PUSH
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| 45 | # define DIAGNOSTIC_POP
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| 46 | # define DIAGNOSTIC_IGNORE(option)
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| 47 | #endif
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| 48 | 
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| 49 | #if defined (__clang__) /* clang */
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| 50 | 
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| 51 | # define DIAGNOSTIC_IGNORE_SELF_MOVE DIAGNOSTIC_IGNORE ("-Wself-move")
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| 52 | # define DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS \
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| 53 |   DIAGNOSTIC_IGNORE ("-Wdeprecated-declarations")
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| 54 | # define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER \
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| 55 |   DIAGNOSTIC_IGNORE ("-Wdeprecated-register")
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| 56 | # if __has_warning ("-Wenum-compare-switch")
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| 57 | #  define DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES \
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| 58 |    DIAGNOSTIC_IGNORE ("-Wenum-compare-switch")
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| 59 | # endif
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| 60 | 
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| 61 | # define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL \
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| 62 |   DIAGNOSTIC_IGNORE ("-Wformat-nonliteral")
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| 63 | 
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| 64 | #elif defined (__GNUC__) /* GCC */
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| 65 | 
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| 66 | # if __GNUC__ >= 7
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| 67 | #  define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER \
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| 68 |    DIAGNOSTIC_IGNORE ("-Wregister")
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| 69 | # endif
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| 70 | 
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| 71 | # define DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION \
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| 72 |   DIAGNOSTIC_IGNORE ("-Wstringop-truncation")
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| 73 | 
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| 74 | # define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL \
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| 75 |   DIAGNOSTIC_IGNORE ("-Wformat-nonliteral")
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| 76 | 
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| 77 | #endif
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| 78 | 
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| 79 | #ifndef DIAGNOSTIC_IGNORE_SELF_MOVE
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| 80 | # define DIAGNOSTIC_IGNORE_SELF_MOVE
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| 81 | #endif
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| 82 | 
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| 83 | #ifndef DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS
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| 84 | # define DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS
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| 85 | #endif
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| 86 | 
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| 87 | #ifndef DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER
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| 88 | # define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER
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| 89 | #endif
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| 90 | 
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| 91 | #ifndef DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES
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| 92 | # define DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES
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| 93 | #endif
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| 94 | 
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| 95 | #ifndef DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION
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| 96 | # define DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION
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| 97 | #endif
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| 98 | 
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| 99 | #ifndef DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL
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| 100 | # define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL
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| 101 | #endif
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| 102 | 
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| 103 | #endif /* DIAGNOSTICS_H */
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