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67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
/*
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compiler.h (09.06.13)
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Compiler-specific definitions. Note that unknown compiler is not a
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showstopper.
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Free exFAT implementation.
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Copyright (C) 2010-2018 Andrew Nayenko
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef COMPILER_H_INCLUDED
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#define COMPILER_H_INCLUDED
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#if __STDC_VERSION__ < 199901L
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#error C99-compliant compiler is required
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#endif
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#if defined(__clang__)
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#define PRINTF __attribute__((format(printf, 1, 2)))
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#define NORETURN __attribute__((noreturn))
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#define PACKED __attribute__((packed))
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#if __has_extension(c_static_assert)
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#define USE_C11_STATIC_ASSERT
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#endif
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#elif defined(__GNUC__)
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#define PRINTF __attribute__((format(printf, 1, 2)))
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#define NORETURN __attribute__((noreturn))
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#define PACKED __attribute__((packed))
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#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
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#define USE_C11_STATIC_ASSERT
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#endif
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#else
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#define PRINTF
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#define NORETURN
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#define PACKED
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#endif
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#ifdef USE_C11_STATIC_ASSERT
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#define STATIC_ASSERT(cond) _Static_assert(cond, #cond)
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#else
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#define CONCAT2(a, b) a ## b
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#define CONCAT1(a, b) CONCAT2(a, b)
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#define STATIC_ASSERT(cond) \
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extern void CONCAT1(static_assert, __LINE__)(int x[(cond) ? 1 : -1])
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#endif
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#endif /* ifndef COMPILER_H_INCLUDED */
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