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use pointer::add in memchr impl

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Maybe Waffle 2022-08-21 02:16:51 +04:00
parent a2cdbf8963
commit 495fa48790
1 changed files with 2 additions and 2 deletions
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4
library/core/src/slice/memchr.rs
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@ -124,8 +124,8 @@ pub fn memrchr(x: u8, text: &[u8]) -> Option<usize> {
// SAFETY: offset starts at len - suffix.len(), as long as it is greater than
// min_aligned_offset (prefix.len()) the remaining distance is at least 2 * chunk_bytes.
unsafe {
let u = *(ptr.offset(offset as isize - 2 * chunk_bytes as isize) as *const Chunk);
let v = *(ptr.offset(offset as isize - chunk_bytes as isize) as *const Chunk);
let u = *(ptr.add(offset - 2 * chunk_bytes) as *const Chunk);
let v = *(ptr.add(offset - chunk_bytes) as *const Chunk);
// Break if there is a matching byte.
let zu = contains_zero_byte(u ^ repeated_x);