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Change to the recommended style of using MaybeUninit

This commit is contained in:
Fan Jiang 2020-03-31 16:50:26 -04:00
parent fe75c60325
commit 74bfd9cad6
1 changed files with 12 additions and 10 deletions
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22
src/base/conversion.rs
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@ -118,12 +118,13 @@ macro_rules! impl_from_into_asref_1D(
S: ContiguousStorage<N, $NRows, $NCols> {
#[inline]
fn into(self) -> [N; $SZ] {
unsafe {
let mut res: [N; $SZ] = mem::MaybeUninit::uninit().assume_init();
ptr::copy_nonoverlapping(self.data.ptr(), &mut res[0], $SZ);
let mut res = mem::MaybeUninit::<[N; $SZ]>::uninit();
res
}
unsafe { ptr::copy_nonoverlapping(self.data.ptr(), res.as_mut_ptr() as *mut N, $SZ); }
let res: [N; $SZ] = unsafe { res.assume_init() };
res
}
}
@ -185,12 +186,13 @@ macro_rules! impl_from_into_asref_2D(
where S: ContiguousStorage<N, $NRows, $NCols> {
#[inline]
fn into(self) -> [[N; $SZRows]; $SZCols] {
unsafe {
let mut res: [[N; $SZRows]; $SZCols] = mem::MaybeUninit::uninit().assume_init();
ptr::copy_nonoverlapping(self.data.ptr(), &mut res[0][0], $SZRows * $SZCols);
let mut res = mem::MaybeUninit::<[[N; $SZRows]; $SZCols]>::uninit();
res
}
unsafe { ptr::copy_nonoverlapping(self.data.ptr(), res.as_mut_ptr() as *mut N, $SZRows * $SZCols); }
let res: [[N; $SZRows]; $SZCols] = unsafe { res.assume_init() };
res
}
}