[libcxx-commits] [libcxx] [libc++] Avoid type-punning locale in ios_base (PR #193507)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions ,cpp -- libcxx/include/__locale libcxx/include/ios libcxx/src/ios.cpp --diff_from_common_commit
``````````

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``````````diff
diff --git a/libcxx/include/ios b/libcxx/include/ios
index 9b5d6837a..9c03f56a2 100644
--- a/libcxx/include/ios
+++ b/libcxx/include/ios
@@ -392,15 +392,15 @@ private:
   iostate __rdstate_;
   iostate __exceptions_;
   void* __rdbuf_;
-#ifndef _LIBCPP_CXX03_LANG
+#    ifndef _LIBCPP_CXX03_LANG
   union {
     locale __loc_;
   };
-#else
+#    else
   // We only care about the union above to implement the destructor correctly, which we do in C++26 anyways. No need to
   // handle C++03 shenanigans.
   locale __loc_;
-#endif
+#    endif
   event_callback* __fn_;
   int* __index_;
   size_t __event_size_;

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https://github.com/llvm/llvm-project/pull/193507