#![doc = include_str!("../../doc/slice/specialization.md")]
use funty::Integral;
use super::BitSlice;
use crate::{
devel as dvl,
mem,
order::BitOrder,
store::BitStore,
};
mod lsb0;
mod msb0;
const WORD_BITS: usize = mem::bits_of::<usize>();
fn has_zero<T>(val: T, mask: T) -> bool
where T: Integral {
val | !mask != !T::ZERO
}
fn has_one<T>(val: T, mask: T) -> bool
where T: Integral {
val & mask != T::ZERO
}
impl<T, O> BitSlice<T, O>
where
T: BitStore,
O: BitOrder,
{
#[inline]
fn as_accessor(&mut self) -> &BitSlice<T::Access, O> {
unsafe { &*(self as *const Self as *const BitSlice<T::Access, O>) }
}
pub(crate) fn coerce<T2, O2>(&self) -> Option<&BitSlice<T2, O2>>
where
T2: BitStore,
O2: BitOrder,
{
if dvl::match_types::<T, O, T2, O2>() {
Some(unsafe { &*(self as *const Self as *const BitSlice<T2, O2>) })
}
else {
None
}
}
pub(crate) fn coerce_mut<T2, O2>(&mut self) -> Option<&mut BitSlice<T2, O2>>
where
T2: BitStore,
O2: BitOrder,
{
if dvl::match_types::<T, O, T2, O2>() {
Some(unsafe { &mut *(self as *mut Self as *mut BitSlice<T2, O2>) })
}
else {
None
}
}
}