[libcxx-commits] [libcxx] [libc++] Removes codecvt. (PR #72496)

[Mark de Wever via libcxx-commits]

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@@ -68,6 +69,13 @@ Improvements and New Features
   on a per translation unit basis using the ``_LIBCPP_HARDENING_MODE`` macro. See :ref:`the hardening documentation
   <using-hardening-modes>` for more details.
 
+- The ``_LIBCPP_ENABLE_CXX26_REMOVED_FEATURES`` macro has been added to allow
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mordante wrote:

In general I think that would be a nice new policy. For example, `std::string::reserve()` has a better alternative for a long time. I will adapt my patch for that paper to not add an `ENABLE` macro

For this feature there is no standard alternative. Zach Laine has written a paper with a replacement feature. AFAIK that paper is still on-track for C++26. Hard removing this feature would break users and make it harder to transition from C++23 to C++26. So I rather remove backwards compatibility for this case in C++29; assuming Zach's paper will be in C++26 and we've implemented that paper.



https://github.com/llvm/llvm-project/pull/72496