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util: add SWAP(a,b) macro

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Equivalent to:
	auto t = a;
	a = b;
	b = t;
This commit is contained in:
Andrei Alexeyev 2023-04-28 21:51:40 +02:00
parent cc1ddbd598
commit f21d997fc6
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1 changed files with 7 additions and 0 deletions
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7
src/util/crap.h
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@ -40,3 +40,10 @@ INLINE double bits_to_double(uint64_t i) {
}
#define ARRAY_SIZE(arr) (sizeof(arr)/sizeof(*(arr)))
#define SWAP(_a, _b) ({ \
auto _swap_temp = _a; \
_a = _b; \
_b = _swap_temp; \
(void)0; \
})