[libcxx-commits] [libcxx] [libc++] Avoid materializing input ranges prepended to deque (PR #199969)

[A. Jiang via libcxx-commits]

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@@ -1231,6 +1235,15 @@ private:
   template <class _Iterator, class _Sentinel>
   _LIBCPP_HIDE_FROM_ABI iterator __insert_with_sentinel(const_iterator __p, _Iterator __f, _Sentinel __l);
 
+#  ifndef _LIBCPP_CXX03_LANG
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frederick-vs-ja wrote:

Do we need to avoid the changes in C++03 mode?

https://github.com/llvm/llvm-project/pull/199969