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//! blcfill
/// Fill from lowest clear bit
pub trait Blcfill {
/// Clears all bits below the least significant zero bit of `self`.
///
/// If there is no zero bit in `self`, it returns zero.
///
/// # Instructions
///
/// - [`BLCFILL`](http://support.amd.com/TechDocs/24594.pdf):
/// - Description: Fill from lowest clear bit.
/// - Architecture: x86.
/// - Instruction set: TBM.
/// - Registers: 32/64 bit.
///
/// # Example
///
/// ```
/// # use bitintr::*;
/// assert_eq!(0b0101_0111u8.blcfill(), 0b0101_0000u8);
/// assert_eq!(0b1111_1111u8.blcfill(), 0u8);
/// ```
fn blcfill(self) -> Self;
}
macro_rules! impl_blcfill {
($id:ident) => {
impl Blcfill for $id {
#[inline]
fn blcfill(self) -> Self {
self & (self.wrapping_add(1))
}
}
};
}
impl_all!(impl_blcfill: u8, u16, u32, u64, i8, i16, i32, i64);