ctlz_nonzero in core::intrinsics - Rust
Description: Like `ctlz`, but extra-unsafe as it returns `undef` when given an `x` with value `0`.

# Function ctlz_nonzero

Source

    pub const unsafe fn ctlz_nonzero<T: Copy>(x: T) -> u32

🔬This is a nightly-only experimental API. (`core_intrinsics`)
Expand description

Like `ctlz`, but extra-unsafe as it returns `undef` when given an `x` with value `0`.

This intrinsic does not have a stable counterpart.

## §Examples

    #![feature(core_intrinsics)]

    use std::intrinsics::ctlz_nonzero;

    let x = 0b0001_1100_u8;
    let num_leading = unsafe { ctlz_nonzero(x) };
    assert_eq!(num_leading, 3);