Function core::arch::x86_64::_mm_cvtsd_f64
1.27.0 · source · pub unsafe fn _mm_cvtsd_f64(a: __m128d) -> f64
Available on (x86 or x86-64) and target feature
sse2
and x86-64 only.Expand description
返回 a
的较低的双精度 (64-bit) 浮点元素。