# Function core::arch::x86::_mm512_mask_getexp_round_pd
[−][src]

    pub unsafe fn _mm512_mask_getexp_round_pd(
        src: __m512d,
        k: __mmask8,
        a: __m512d,
        sae: i32
    ) -> __m512d

🔬 This is a nightly-only experimental API. (`stdsimd` #48556)
This is supported on x86 and target feature `avx512f` only.

Convert the exponent of each packed double-precision (64-bit) floating-point element in a to a double-precision (64-bit) floating-point number representing the integer exponent, and store the results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set). This intrinsic essentially calculates floor(log2(x)) for each element.
Exceptions can be suppressed by passing _MM_FROUND_NO_EXC in the sae parameter.

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