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Merge 409d6215b4641547ab9765eaccde3cf5075b3482 into 7b21183a93c4a8943a2d384f207537d7330547e1

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Raine Simmons 2025-11-22 16:13:45 +00:00 committed by GitHub
commit 3b3cefe6a1
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include/fast_float/float_common.h
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@ -407,7 +407,7 @@ full_multiplication(uint64_t a, uint64_t b) {
answer.high = __umulh(a, b);
answer.low = a * b;
#elif defined(FASTFLOAT_32BIT) || \
(defined(_WIN64) && !defined(__clang__) && !defined(_M_ARM64))
(defined(_WIN64) && !defined(__clang__) && !defined(_M_ARM64) && !defined(__GNUC__))
answer.low = _umul128(a, b, &answer.high); // _umul128 not available on ARM64
#elif defined(FASTFLOAT_64BIT) && defined(__SIZEOF_INT128__)
__uint128_t r = ((__uint128_t)a) * b;