[libcxx-commits] [libcxx] [libc++][hardening] Use bounded iterators in std::vector and std::string (PR #78929)

[Louis Dionne via libcxx-commits]

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@@ -918,11 +926,27 @@ private:
     __init_with_sentinel(std::move(__first), std::move(__last));
   }
 
+#ifdef _LIBCPP_ABI_BOUNDED_ITERATORS
+  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 iterator __make_iterator(pointer __p) {
+    return __make_bounded_iter(
+        __wrap_iter<pointer>(__p),
+        __wrap_iter<pointer>(__get_pointer()),
+        __wrap_iter<pointer>(__get_pointer() + size()));
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ldionne wrote:

Let's add a comment explaining why we use `size()` here. I'd like the rationale for using size() vs capacity() explained.

https://github.com/llvm/llvm-project/pull/78929