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fix aliasing issue in binary_heap

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This commit is contained in:
Ralf Jung 2020-10-31 16:22:24 +01:00
parent 9f630af930
commit 607076e209
1 changed files with 3 additions and 2 deletions
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5
library/alloc/src/collections/binary_heap.rs
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@ -1036,8 +1036,9 @@ unsafe fn move_to(&mut self, index: usize) {
debug_assert!(index != self.pos);
debug_assert!(index < self.data.len());
unsafe {
let index_ptr: *const _ = self.data.get_unchecked(index);
let hole_ptr = self.data.get_unchecked_mut(self.pos);
let ptr = self.data.as_mut_ptr();
let index_ptr: *const _ = ptr.add(index);
let hole_ptr = ptr.add(self.pos);
ptr::copy_nonoverlapping(index_ptr, hole_ptr, 1);
}
self.pos = index;