Function _bittestandset64
pub unsafe fn _bittestandset64(p: *mut i64, b: i64) -> u8Returns the bit in position b of the memory addressed by p, then sets the bit to 1.
_bittestandset64pub unsafe fn _bittestandset64(p: *mut i64, b: i64) -> u8Returns the bit in position b of the memory addressed by p, then sets the bit to 1.