diagnostics.h revision 1.1.1.4
1 /* Copyright (C) 2017-2024 Free Software Foundation, Inc. 2 3 This program is free software; you can redistribute it and/or modify 4 it under the terms of the GNU General Public License as published by 5 the Free Software Foundation; either version 3 of the License, or 6 (at your option) any later version. 7 8 This program is distributed in the hope that it will be useful, 9 but WITHOUT ANY WARRANTY; without even the implied warranty of 10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 GNU General Public License for more details. 12 13 You should have received a copy of the GNU General Public License 14 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 15 16 #ifndef DIAGNOSTICS_H 17 #define DIAGNOSTICS_H 18 19 /* If at all possible, fix the source rather than using these macros 20 to silence warnings. If you do use these macros be aware that 21 you'll need to condition their use on particular compiler versions, 22 which can be done for gcc using ansidecl.h's GCC_VERSION macro. 23 24 gcc versions between 4.2 and 4.6 do not allow pragma control of 25 diagnostics inside functions, giving a hard error if you try to use 26 the finer control available with later versions. 27 gcc prior to 4.2 warns about diagnostic push and pop. 28 29 The other macros have restrictions too, for example gcc-5, gcc-6 30 and gcc-7 warn that -Wstringop-truncation is unknown, unless you 31 also add DIAGNOSTIC_IGNORE ("-Wpragma"). */ 32 33 #ifdef __GNUC__ 34 # define DIAGNOSTIC_PUSH _Pragma ("GCC diagnostic push") 35 # define DIAGNOSTIC_POP _Pragma ("GCC diagnostic pop") 36 37 /* Stringification. */ 38 # define DIAGNOSTIC_STRINGIFY_1(x) #x 39 # define DIAGNOSTIC_STRINGIFY(x) DIAGNOSTIC_STRINGIFY_1 (x) 40 41 # define DIAGNOSTIC_IGNORE(option) \ 42 _Pragma (DIAGNOSTIC_STRINGIFY (GCC diagnostic ignored option)) 43 # define DIAGNOSTIC_ERROR(option) \ 44 _Pragma (DIAGNOSTIC_STRINGIFY (GCC diagnostic error option)) 45 #else 46 # define DIAGNOSTIC_PUSH 47 # define DIAGNOSTIC_POP 48 # define DIAGNOSTIC_IGNORE(option) 49 #endif 50 51 #if defined (__clang__) /* clang */ 52 53 # define DIAGNOSTIC_IGNORE_SELF_MOVE DIAGNOSTIC_IGNORE ("-Wself-move") 54 # define DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS \ 55 DIAGNOSTIC_IGNORE ("-Wdeprecated-declarations") 56 # define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER \ 57 DIAGNOSTIC_IGNORE ("-Wdeprecated-register") 58 # if __has_warning ("-Wenum-compare-switch") 59 # define DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES \ 60 DIAGNOSTIC_IGNORE ("-Wenum-compare-switch") 61 # endif 62 63 # define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL \ 64 DIAGNOSTIC_IGNORE ("-Wformat-nonliteral") 65 66 # if __has_warning ("-Wuser-defined-warnings") 67 # define DIAGNOSTIC_IGNORE_USER_DEFINED_WARNINGS \ 68 DIAGNOSTIC_IGNORE ("-Wuser-defined-warnings") 69 # endif 70 71 # if __has_warning ("-Wunused-but-set-variable") 72 # define DIAGNOSTIC_IGNORE_UNUSED_BUT_SET_VARIABLE \ 73 DIAGNOSTIC_IGNORE ("-Wunused-but-set-variable") 74 # endif 75 76 # define DIAGNOSTIC_ERROR_SWITCH \ 77 DIAGNOSTIC_ERROR ("-Wswitch") 78 79 # if __has_warning ("-Wenum-constexpr-conversion") 80 # define DIAGNOSTIC_IGNORE_ENUM_CONSTEXPR_CONVERSION \ 81 DIAGNOSTIC_IGNORE ("-Wenum-constexpr-conversion") 82 # endif 83 84 #elif defined (__GNUC__) /* GCC */ 85 86 # define DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS \ 87 DIAGNOSTIC_IGNORE ("-Wdeprecated-declarations") 88 89 # if __GNUC__ >= 7 90 # define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER \ 91 DIAGNOSTIC_IGNORE ("-Wregister") 92 # endif 93 94 # define DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION \ 95 DIAGNOSTIC_IGNORE ("-Wstringop-truncation") 96 97 # if __GNUC__ >= 11 98 # define DIAGNOSTIC_IGNORE_STRINGOP_OVERREAD \ 99 DIAGNOSTIC_IGNORE ("-Wstringop-overread") 100 #endif 101 102 # define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL \ 103 DIAGNOSTIC_IGNORE ("-Wformat-nonliteral") 104 105 # if __GNUC__ >= 5 106 # define DIAGNOSTIC_IGNORE_UNUSED_BUT_SET_VARIABLE \ 107 DIAGNOSTIC_IGNORE ("-Wunused-but-set-variable") 108 # endif 109 110 # if __GNUC__ >= 13 111 # define DIAGNOSTIC_IGNORE_SELF_MOVE DIAGNOSTIC_IGNORE ("-Wself-move") 112 # endif 113 114 /* GCC 4.8's "diagnostic push/pop" seems broken when using this, -Wswitch 115 remains enabled at the error level even after a pop. Therefore, don't 116 use it for GCC < 5. */ 117 # if __GNUC__ >= 5 118 # define DIAGNOSTIC_ERROR_SWITCH DIAGNOSTIC_ERROR ("-Wswitch") 119 # endif 120 121 #endif 122 123 #ifndef DIAGNOSTIC_IGNORE_SELF_MOVE 124 # define DIAGNOSTIC_IGNORE_SELF_MOVE 125 #endif 126 127 #ifndef DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS 128 # define DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS 129 #endif 130 131 #ifndef DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER 132 # define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER 133 #endif 134 135 #ifndef DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES 136 # define DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES 137 #endif 138 139 #ifndef DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION 140 # define DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION 141 #endif 142 143 #ifndef DIAGNOSTIC_IGNORE_STRINGOP_OVERREAD 144 # define DIAGNOSTIC_IGNORE_STRINGOP_OVERREAD 145 #endif 146 147 #ifndef DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL 148 # define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL 149 #endif 150 151 #ifndef DIAGNOSTIC_IGNORE_USER_DEFINED_WARNINGS 152 # define DIAGNOSTIC_IGNORE_USER_DEFINED_WARNINGS 153 #endif 154 155 #ifndef DIAGNOSTIC_IGNORE_UNUSED_BUT_SET_VARIABLE 156 # define DIAGNOSTIC_IGNORE_UNUSED_BUT_SET_VARIABLE 157 #endif 158 159 #ifndef DIAGNOSTIC_ERROR_SWITCH 160 # define DIAGNOSTIC_ERROR_SWITCH 161 #endif 162 163 #ifndef DIAGNOSTIC_IGNORE_ENUM_CONSTEXPR_CONVERSION 164 # define DIAGNOSTIC_IGNORE_ENUM_CONSTEXPR_CONVERSION 165 #endif 166 167 #endif /* DIAGNOSTICS_H */ 168
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