[libcxx-commits] [libcxx] [libc++] Implements LWG3600 Making istream_iterator copy constructor trivial is an ABI break (PR #127343)

[Mark de Wever via libcxx-commits]

================
@@ -58,6 +58,9 @@ class _LIBCPP_TEMPLATE_VIS istream_iterator
       __in_stream_ = nullptr;
   }
 
+  // LWG3600 Changed the wording of the copy constructor. In libc++ this constructor
+  // can still be trivial after this change.
+
----------------
mordante wrote:

I care a lot. In the past we had several LWG issues closed as `Completed` or `Nothing To Do` when that was not correct. By explicitly mentioning it, it will safe time when somebody notices a difference between libc++ and the Standard.

https://github.com/llvm/llvm-project/pull/127343