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https://github.com/TerryCavanagh/VVVVVV.git
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aa2cf3ab4b
I think this is because if you both check that __has_builtin is defined and use it in the same 'if' preprocessor statement, it can error because there's no equivalent to short-circuiting in preprocessor statements. _SDL_HAS_BUILTIN should be safer.
18 lines
428 B
C
18 lines
428 B
C
#ifndef UNREACHABLE_H
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#define UNREACHABLE_H
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#include <SDL_stdinc.h>
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SDL_NORETURN SDL_INLINE void VVV_unreachable(void)
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{
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/* __builtin_unreachable() and __assume(0) execute undefined behavior.
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* Otherwise, a noreturn function returning is also undefined behavior. */
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#if _SDL_HAS_BUILTIN(__builtin_unreachable)
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__builtin_unreachable();
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#elif defined(_MSC_VER)
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__assume(0);
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#endif
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}
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#endif /* UNREACHABLE_H */
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