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fn is_align_to: move some comments closer to the cast they refer to

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Ralf Jung 2024-03-09 11:54:27 +01:00
parent 6aff1ca68c
commit 1082c36a4c
2 changed files with 6 additions and 6 deletions
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6
library/core/src/ptr/const_ptr.rs
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@ -1628,12 +1628,12 @@ impl<T: ?Sized> *const T {
#[inline]
const fn const_impl(ptr: *const (), align: usize) -> bool {
// We can't use the address of `self` in a `const fn`, so we use `align_offset` instead.
// The cast to `()` is used to
// 1. deal with fat pointers; and
// 2. ensure that `align_offset` doesn't actually try to compute an offset.
ptr.align_offset(align) == 0
}
// The cast to `()` is used to
// 1. deal with fat pointers; and
// 2. ensure that `align_offset` (in `const_impl`) doesn't actually try to compute an offset.
#[cfg_attr(not(bootstrap), allow(unused_unsafe))] // on bootstrap bump, remove unsafe block
// SAFETY: The two versions are equivalent at runtime.
unsafe {

6
library/core/src/ptr/mut_ptr.rs
View file

@ -1900,12 +1900,12 @@ impl<T: ?Sized> *mut T {
#[inline]
const fn const_impl(ptr: *mut (), align: usize) -> bool {
// We can't use the address of `self` in a `const fn`, so we use `align_offset` instead.
// The cast to `()` is used to
// 1. deal with fat pointers; and
// 2. ensure that `align_offset` doesn't actually try to compute an offset.
ptr.align_offset(align) == 0
}
// The cast to `()` is used to
// 1. deal with fat pointers; and
// 2. ensure that `align_offset` (in `const_impl`) doesn't actually try to compute an offset.
#[cfg_attr(not(bootstrap), allow(unused_unsafe))] // on bootstrap bump, remove unsafe block
// SAFETY: The two versions are equivalent at runtime.
unsafe {