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_REGISTER DIAGNOSTIC_IGNORE ("-Wregister") 57 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 #elif defined (__GNUC__) /* GCC */ 80 81 # define DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS \ 82 DIAGNOSTIC_IGNORE ("-Wdeprecated-declarations") 83 84 # if __GNUC__ >= 7 85 # define DIAGNOSTIC_IGNORE_REGISTER DIAGNOSTIC_IGNORE ("-Wregister") 86 # endif 87 88 # define DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION \ 89 DIAGNOSTIC_IGNORE ("-Wstringop-truncation") 90 91 # if __GNUC__ >= 11 92 # define DIAGNOSTIC_IGNORE_STRINGOP_OVERREAD \ 93 DIAGNOSTIC_IGNORE ("-Wstringop-overread") 94 #endif 95 96 # define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL \ 97 DIAGNOSTIC_IGNORE ("-Wformat-nonliteral") 98 99 # if __GNUC__ >= 5 100 # define DIAGNOSTIC_IGNORE_UNUSED_BUT_SET_VARIABLE \ 101 DIAGNOSTIC_IGNORE ("-Wunused-but-set-variable") 102 # endif 103 104 # if __GNUC__ >= 13 105 # define DIAGNOSTIC_IGNORE_SELF_MOVE DIAGNOSTIC_IGNORE ("-Wself-move") 106 # endif 107 108 /* GCC 4.8's "diagnostic push/pop" seems broken when using this, -Wswitch 109 remains enabled at the error level even after a pop. Therefore, don't 110 use it for GCC < 5. */ 111 # if __GNUC__ >= 5 112 # define DIAGNOSTIC_ERROR_SWITCH DIAGNOSTIC_ERROR ("-Wswitch") 113 # endif 114 115 #endif 116 117 #ifndef DIAGNOSTIC_IGNORE_SELF_MOVE 118 # define DIAGNOSTIC_IGNORE_SELF_MOVE 119 #endif 120 121 #ifndef DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS 122 # define DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS 123 #endif 124 125 #ifndef DIAGNOSTIC_IGNORE_REGISTER 126 # define DIAGNOSTIC_IGNORE_REGISTER 127 #endif 128 129 #ifndef DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES 130 # define DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES 131 #endif 132 133 #ifndef DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION 134 # define DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION 135 #endif 136 137 #ifndef DIAGNOSTIC_IGNORE_STRINGOP_OVERREAD 138 # define DIAGNOSTIC_IGNORE_STRINGOP_OVERREAD 139 #endif 140 141 #ifndef DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL 142 # define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL 143 #endif 144 145 #ifndef DIAGNOSTIC_IGNORE_USER_DEFINED_WARNINGS 146 # define DIAGNOSTIC_IGNORE_USER_DEFINED_WARNINGS 147 #endif 148 149 #ifndef DIAGNOSTIC_IGNORE_UNUSED_BUT_SET_VARIABLE 150 # define DIAGNOSTIC_IGNORE_UNUSED_BUT_SET_VARIABLE 151 #endif 152 153 #ifndef DIAGNOSTIC_ERROR_SWITCH 154 # define DIAGNOSTIC_ERROR_SWITCH 155 #endif 156 157 #endif /* DIAGNOSTICS_H */ 158
Indexes created Sun Mar 01 05:31:48 UTC 2026