Function core_arch::x86_64::_bittestandset

pub unsafe fn _bittestandset(p: *mut i32, b: i32) -> u8

🔬 This is a nightly-only experimental API. (simd_x86_bittest)

This is supported on x86-64 only.

Returns the bit in position b of the memory addressed by p, then sets the bit to 1.