1 /* Copyright (C) 2017-2018 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 #else 44 # define DIAGNOSTIC_PUSH 45 # define DIAGNOSTIC_POP 46 # define DIAGNOSTIC_IGNORE(option) 47 #endif 48 49 #if defined (__clang__) /* clang */ 50 51 # define DIAGNOSTIC_IGNORE_SELF_MOVE DIAGNOSTIC_IGNORE ("-Wself-move") 52 # define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER \ 53 DIAGNOSTIC_IGNORE ("-Wdeprecated-register") 54 # define DIAGNOSTIC_IGNORE_UNUSED_FUNCTION \ 55 DIAGNOSTIC_IGNORE ("-Wunused-function") 56 # if __has_warning ("-Wenum-compare-switch") 57 # define DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES \ 58 DIAGNOSTIC_IGNORE ("-Wenum-compare-switch") 59 # endif 60 #elif defined (__GNUC__) /* GCC */ 61 62 # define DIAGNOSTIC_IGNORE_UNUSED_FUNCTION \ 63 DIAGNOSTIC_IGNORE ("-Wunused-function") 64 65 # define DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION \ 66 DIAGNOSTIC_IGNORE ("-Wstringop-truncation") 67 #endif 68 69 #ifndef DIAGNOSTIC_IGNORE_SELF_MOVE 70 # define DIAGNOSTIC_IGNORE_SELF_MOVE 71 #endif 72 73 #ifndef DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER 74 # define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER 75 #endif 76 77 #ifndef DIAGNOSTIC_IGNORE_UNUSED_FUNCTION 78 # define DIAGNOSTIC_IGNORE_UNUSED_FUNCTION 79 #endif 80 81 #ifndef DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES 82 # define DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES 83 #endif 84 85 #ifndef DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION 86 # define DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION 87 #endif 88 89 #endif /* DIAGNOSTICS_H */ 90