43 lines
754 B
C
43 lines
754 B
C
/**
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* See Copyright Notice in picrin.h
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*/
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#ifndef PICRIN_UTIL_H__
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#define PICRIN_UTIL_H__
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#if defined(__cplusplus)
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extern "C" {
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#endif
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#if __STDC_VERSION__ >= 201112L
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# include <stdnoreturn.h>
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#elif __GNUC__ || __clang__
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# define noreturn __attribute__((noreturn))
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#else
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# define noreturn
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#endif
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#define FALLTHROUGH ((void)0)
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#define UNUSED(v) ((void)(v))
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#define GENSYM2__(x,y) G##x##_##y##__
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#define GENSYM1__(x,y) GENSYM2__(x,y)
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#if defined(__COUNTER__)
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# define GENSYM(x) GENSYM1__(__COUNTER__,x)
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#else
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# define GENSYM(x) GENSYM1__(__LINE__,x)
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#endif
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#if __GNUC__ || __clang__
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# define UNREACHABLE() (__builtin_unreachable())
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#else
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# include <assert.h>
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# define UNREACHABLE() (assert(false))
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#endif
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#if defined(__cplusplus)
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}
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#endif
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#endif
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