Function kvarn::prelude::compact_str::core::arch::x86_64::_blcmsk_u64

pub unsafe fn _blcmsk_u64(x: u64) -> u64

Available on non-crate feature miri-test-libstd and x86-64 and non-x86 only.

Sets the least significant zero bit of x and clears all bits above that bit.

If there is no zero bit in x, it sets all the bits.