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phausler/defer.h

Created March 20, 2017 15:43
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Defer for c
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defer.h
__attribute__((used))
static inline void __deferred(void (^*b)(void)) { if (b) (*b)(); }
#define ___PASTE__(x, y) x ## y
#define __PASTE__(x, y) ___PASTE__(x, y)
#define defer(block) void (^__PASTE__(__cleanup, __COUNTER__))(void) __attribute__((cleanup(__deferred), unused)) = block
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