Function safe_arch::bit_lowest_set_value_u64

source · 
pub fn bit_lowest_set_value_u64(a: u64) -> u64
Available with target feature bmi1 only.
Expand description

Gets the value of the lowest set bit in a u64.

If the input is 0 you get 0 back.

  • Formula: (!a) & a

  • Intrinsic: _blsi_u64

  • Assembly: blsi r64, r64