Function core_arch::x86::_mm_cmpestrs

pub unsafe fn _mm_cmpestrs(
    a: __m128i, 
    la: i32, 
    b: __m128i, 
    lb: i32, 
    imm8: i32
) -> i32

This is supported on x86 and target feature sse4.2 only.

Compares packed strings in a and b with lengths la and lb using the control in imm8, and return 1 if any character in a was null, and 0 otherwise.

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