1 /* 2 compiler.h (09.06.13) 3 Compiler-specific definitions. Note that unknown compiler is not a 4 showstopper. 5 6 Free exFAT implementation. 7 Copyright (C) 2010-2023 Andrew Nayenko 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation, either version 2 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License along 20 with this program; if not, write to the Free Software Foundation, Inc., 21 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 22 */ 23 24 #ifndef COMPILER_H_INCLUDED 25 #define COMPILER_H_INCLUDED 26 27 #if __STDC_VERSION__ < 199901L 28 #error C99-compliant compiler is required 29 #endif 30 31 #if defined(__clang__) 32 33 #define PRINTF __attribute__((format(printf, 1, 2))) 34 #define NORETURN __attribute__((noreturn)) 35 #define PACKED __attribute__((packed)) 36 #define UNUSED __attribute__((unused)) 37 #if __has_extension(c_static_assert) 38 #define USE_C11_STATIC_ASSERT 39 #endif 40 41 #elif defined(__GNUC__) 42 43 #define PRINTF __attribute__((format(printf, 1, 2))) 44 #define NORETURN __attribute__((noreturn)) 45 #define PACKED __attribute__((packed)) 46 #define UNUSED __attribute__((unused)) 47 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6) 48 #define USE_C11_STATIC_ASSERT 49 #endif 50 51 #else 52 53 #define PRINTF 54 #define NORETURN 55 #define PACKED 56 #define UNUSED 57 58 #endif 59 60 #ifdef USE_C11_STATIC_ASSERT 61 #define STATIC_ASSERT(cond) _Static_assert(cond, #cond) 62 #else 63 #define CONCAT2(a, b) a ## b 64 #define CONCAT1(a, b) CONCAT2(a, b) 65 #define STATIC_ASSERT(cond) \ 66 extern void CONCAT1(static_assert, __LINE__)(int x[(cond) ? 1 : -1]) 67 #endif 68 69 #endif /* ifndef COMPILER_H_INCLUDED */ 70