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use int::Int; /// Resets the lowest set bit of `x`. /// /// # Panics /// /// If `x` is zero the behavior is undefined (panics in debug builds). /// /// # Assembly Instructions /// /// - [`BLSR`](http://www.felixcloutier.com/x86/BLSR.html): /// - Description: Reset lowest set bit. /// - Architecture: x86. /// - Instruction set: BMI. /// - Registers: 32/64 bit. /// /// # Example /// /// ``` /// use bitintr::x86::bmi::*; /// /// assert_eq!(blsr(0b0011_0000u8), 0b0010_0000u8); /// assert_eq!(0b0011_0000u8.blsr(), 0b0010_0000u8); /// ``` #[inline] pub fn blsr<T: Int>(x: T) -> T { debug_assert!(x != T::zero()); x & (x.wrapping_sub(T::one())) } /// Method version of [`blsr`](fn.blsr.html). pub trait BLSR { #[inline] fn blsr(self) -> Self; } impl<T: Int> BLSR for T { #[inline] fn blsr(self) -> Self { blsr(self) } }