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PosMap: optimize into_2d

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This commit is contained in:
Simon Gardling 2025-03-25 09:42:33 -04:00
parent bd5ddba5bc
commit 9c0c4e02a0
Signed by: titaniumtown
GPG Key ID: 9AB28AC10ECE533D
1 changed files with 9 additions and 3 deletions
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12
src/repr/pos_map.rs
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@ -24,18 +24,24 @@ impl<T: Copy> PosMap<T> {
n n
} }
pub const fn into_2d(&self) -> [[T; Board::SIZE as usize]; Board::SIZE as usize] { pub const fn into_2d(mut self) -> [[T; Board::SIZE as usize]; Board::SIZE as usize] {
let mut n: [[T; Board::SIZE as usize]; Board::SIZE as usize] = let mut n: [[T; Board::SIZE as usize]; Board::SIZE as usize] =
unsafe { MaybeUninit::zeroed().assume_init() }; unsafe { MaybeUninit::zeroed().assume_init() };
const_for!(i in 0..Board::SIZE => { const_for!(i in 0..Board::SIZE => {
const_for!(j in 0..Board::SIZE => { const_for!(j in 0..Board::SIZE => {
n[i as usize][j as usize] = *self.get(CoordPair::from_axes(i, j)); // take because we are consuming `self`
}); n[i as usize][j as usize] =
unsafe { std::ptr::read(self.get_mut(CoordPair::from_axes(i, j))) };
});
}); });
n n
} }
pub const fn get_mut(&mut self, coords: CoordPair) -> &mut T {
&mut self.0[coords.0 as usize]
}
pub const fn get(&self, coords: CoordPair) -> &T { pub const fn get(&self, coords: CoordPair) -> &T {
&self.0[coords.0 as usize] &self.0[coords.0 as usize]
} }