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//! blsfill
/// Fill from lowest set bit
pub trait Blsfill {
/// Sets all bits of `self` below the least significant one.
///
/// If there is no set bit in `self`, it sets all the bits.
///
/// # Instructions
///
/// - [`BLSFILL`](http://support.amd.com/TechDocs/24594.pdf):
/// - Description: Fill from lowest set bit.
/// - Architecture: x86.
/// - Instruction set: TBM.
/// - Registers: 32/64 bit.
///
/// # Example
///
/// ```
/// # use bitintr::*;
/// assert_eq!(0b0101_0100u8.blsfill(), 0b0101_0111u8);
/// assert_eq!(0b0000_0000u8.blsfill(), 0b1111_1111u8);
/// ```
fn blsfill(self) -> Self;
}
macro_rules! impl_blsfill {
($id:ident) => {
impl Blsfill for $id {
#[inline]
fn blsfill(self) -> Self {
self | (self.wrapping_sub(1))
}
}
};
}
impl_all!(impl_blsfill: u8, u16, u32, u64, i8, i16, i32, i64);