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Use sub instead of offset #668

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Feb 6, 2024
Merged

Use sub instead of offset #668

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4 changes: 2 additions & 2 deletions src/bytes_mut.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -617,7 +617,7 @@ impl BytesMut {
//
// Just move the pointer back to the start after copying
// data back.
let base_ptr = self.ptr.as_ptr().offset(-(off as isize));
let base_ptr = self.ptr.as_ptr().sub(off);
// Since `off >= self.len()`, the two regions don't overlap.
ptr::copy_nonoverlapping(self.ptr.as_ptr(), base_ptr, self.len);
self.ptr = vptr(base_ptr);
Expand Down Expand Up @@ -1694,7 +1694,7 @@ fn offset_from(dst: *mut u8, original: *mut u8) -> usize {
}

unsafe fn rebuild_vec(ptr: *mut u8, mut len: usize, mut cap: usize, off: usize) -> Vec<u8> {
let ptr = ptr.offset(-(off as isize));
let ptr = ptr.sub(off);
len += off;
cap += off;

Expand Down