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bigbiff bigbiff61cdc022013-08-08 08:35:06 -04001/*
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) 2010-2013 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 defined(__clang__)
28
29#define PRINTF __attribute__((format(printf, 1, 2)))
30#define NORETURN __attribute__((noreturn))
31#define PACKED __attribute__((packed))
32#if __has_extension(c_static_assert)
33#define USE_C11_STATIC_ASSERT
34#endif
35
36#elif defined(__GNUC__)
37
38#define PRINTF __attribute__((format(printf, 1, 2)))
39#define NORETURN __attribute__((noreturn))
40#define PACKED __attribute__((packed))
41#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
42#define USE_C11_STATIC_ASSERT
43#endif
44
45#else
46
47#define PRINTF
48#define NORETURN
49#define PACKED
50
51#endif
52
53#ifdef USE_C11_STATIC_ASSERT
54#define STATIC_ASSERT(cond) _Static_assert(cond, #cond)
55#else
56#define CONCAT2(a, b) a ## b
57#define CONCAT1(a, b) CONCAT2(a, b)
58#define STATIC_ASSERT(cond) \
59 extern void CONCAT1(static_assert, __LINE__)(int x[(cond) ? 1 : -1])
60#endif
61
62#endif /* ifndef COMPILER_H_INCLUDED */