// FIXME: Replace with `core::hint::{likely, unlikely}` once they are stable.

#[cfg(feature = "nightly")]

pub(crate) use core::intrinsics::{likely, unlikely};

#[cfg(not(feature = "nightly"))]

#[inline(always)]

#[cold]

fn cold_path() {}

#[cfg(not(feature = "nightly"))]

#[inline(always)]

pub(crate) fn likely(b: bool) -> bool {

    if b {

        true

    } else {

        cold_path();

        false

    }

}

#[cfg(not(feature = "nightly"))]

#[inline(always)]

pub(crate) fn unlikely(b: bool) -> bool {

    if b {

        cold_path();

        true

    } else {

        false

    }

}

// FIXME: use strict provenance functions once they are stable.

// Implement it with a transmute for now.

#[inline(always)]

#[allow(clippy::useless_transmute)] // clippy is wrong, cast and transmute are different here

pub(crate) fn invalid_mut<T>(addr: usize) -> *mut T {

    unsafe { core::mem::transmute(addr) }

}