# Function core::arch::x86::_kandn_mask64

source ·

    pub unsafe fn _kandn_mask64(a: __mmask64, b: __mmask64) -> __mmask64

🔬This is a nightly-only experimental API. (`stdarch_x86_avx512` #111137)
Available on (x86 or x86-64) and target feature `avx512bw` and x86 only.
Expand description

Compute the bitwise NOT of 64-bit masks a and then AND with b, and store the result in k.

Intel’s documentation