Function core::arch::x86::_mm_cvtsd_f64 1.27.0[−][src]
pub unsafe fn _mm_cvtsd_f64(a: __m128d) -> f64
This is supported on x86 and target feature
sse2
only.Expand description
返回 a
的较低的双精度 (64-bit) 浮点元素。