# Function core::arch::x86_64::_mm_sub_ss 1.27.0[−][src]

    pub unsafe fn _mm_sub_ss(a: __m128, b: __m128) -> __m128

This is supported on x86-64 and target feature `sse` only.

Subtracts the first component of `b` from `a`, the other components are copied from `a`.

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