# Function core::arch::x86_64::_mm512_cmpnlt_pd_mask

source ·

    pub unsafe fn _mm512_cmpnlt_pd_mask(a: __m512d, b: __m512d) -> __mmask8

🔬This is a nightly-only experimental API. (`stdsimd` #48556)
Available on (x86 or x86-64) and target feature `avx512f` and x86-64 only.
Expand description

Compare packed double-precision (64-bit) floating-point elements in a and b for not-less-than, and store the results in mask vector k.

Intel’s documentation