[all-commits] [llvm/llvm-project] 8abca1: [libc++] Introduce unversioned namespace macros (#...

[Nikolas Klauser via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8abca171c3346eb7c889354d9b2288ad2b7e1504
      https://github.com/llvm/llvm-project/commit/8abca171c3346eb7c889354d9b2288ad2b7e1504
  Author: Nikolas Klauser <nikolasklauser at berlin.de>
  Date:   2025-03-27 (Thu, 27 Mar 2025)

  Changed paths:
    M libcxx/include/__config
    M libcxx/include/__cstddef/byte.h
    M libcxx/include/__exception/exception.h
    M libcxx/include/__exception/exception_ptr.h
    M libcxx/include/__exception/nested_exception.h
    M libcxx/include/__exception/operations.h
    M libcxx/include/__exception/terminate.h
    M libcxx/include/__fwd/byte.h
    M libcxx/include/__new/align_val_t.h
    M libcxx/include/__new/destroying_delete_t.h
    M libcxx/include/__new/exceptions.h
    M libcxx/include/__new/new_handler.h
    M libcxx/include/__new/nothrow_t.h
    M libcxx/include/any
    M libcxx/include/typeinfo
    M libcxx/include/variant

  Log Message:
  -----------
  [libc++] Introduce unversioned namespace macros (#133009)

We've started using `_LIBCPP_BEGIN_NAMESPACE_STD` and
`_LIBCPP_END_NAMESPACE_STD` for more than just the namespace for a while
now. For example, we're using it to add visibility annotations to types.
This works very well and avoids a bunch of annotations, but doesn't work
for the few places where we have an unversioned namespace. This adds
`_LIBCPP_BEGIN_UNVERSIONED_NAMESPACE_STD` and
`_LIBCPP_END_UNVERSIONED_NAMESPACE_STD` to make it simpler to add new
annotations consistently across the library as well as making it more
explicit that the unversioned namespace is indeed intended.



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