Rollup merge of #53329 - frewsxcv:frewsxcv-ptr-add-sub, r=RalfJung

Replace usages of ptr::offset with ptr::{add,sub}.

Rust provides these helper methods – so let's use them!

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libstd/sys_common/wtf8.rs b/src/libstd/sys_common/wtf8.rs
index 45204b56ead..8725abe7416 100644
--- a/src/libstd/sys_common/wtf8.rs
+++ b/src/libstd/sys_common/wtf8.rs
@@ -772,7 +772,7 @@ pub fn is_code_point_boundary(slice: &Wtf8, index: usize) -> bool {
 pub unsafe fn slice_unchecked(s: &Wtf8, begin: usize, end: usize) -> &Wtf8 {
     // memory layout of an &[u8] and &Wtf8 are the same
     Wtf8::from_bytes_unchecked(slice::from_raw_parts(
-        s.bytes.as_ptr().offset(begin as isize),
+        s.bytes.as_ptr().add(begin),
         end - begin
     ))
 }