diff options
| -rw-r--r-- | library/alloc/src/vec/mod.rs | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/library/alloc/src/vec/mod.rs b/library/alloc/src/vec/mod.rs index 1c33ff555d6..105c60e7bf0 100644 --- a/library/alloc/src/vec/mod.rs +++ b/library/alloc/src/vec/mod.rs @@ -1619,6 +1619,8 @@ impl<T, A: Allocator> Vec<T, A> { let prev_ptr = ptr.add(gap.write.wrapping_sub(1)); if same_bucket(&mut *read_ptr, &mut *prev_ptr) { + // Increase `gap.read` now since the drop may panic. + gap.read += 1; /* We have found duplicate, drop it in-place */ ptr::drop_in_place(read_ptr); } else { @@ -1631,9 +1633,8 @@ impl<T, A: Allocator> Vec<T, A> { /* We have filled that place, so go further */ gap.write += 1; + gap.read += 1; } - - gap.read += 1; } /* Technically we could let `gap` clean up with its Drop, but |