[libcxx-commits] [PATCH] D142902: [libcxx][pmr] Make std::pmr::memory_resource ABI-compatible with GNU libstdc++ and Microsoft STL implementation.

[Ruslan Arutyunyan via Phabricator via libcxx-commits]

rarutyun created this revision.
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The idea of this patch to make libcxx implementation of `std::pmr::memory_resource` and some of its utilities ABI-compatible with GNU and Microsoft implementation of standard library.

Since both GNU and Microsoft libraries have the name without namespace versioning we would like to remove that as well in libcxx to result in the same mangled name with GNU implementation. It also allows to let's say set `memory_resource` via `std::pmr::set_default_resource` in some library compiled with GNU/Microsoft and then read it with `std::pmr::<get|set>_default_resource` it in the library/application that is built with libcxx.

The similar technic as applied (for example) for `std::<get|set>_terminate` functions.

I believe it's worth committing this patch before release because now the latest libcxx has no implementation of memory resource. Introducing it later would be the ABI breaking change.

Co-authored-by: Konstantin Boyarinov <konstantin.boyarinov at intel.com>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D142902

Files:
  libcxx/include/__fwd/memory_resource.h
  libcxx/include/__fwd/string.h
  libcxx/include/__memory_resource/memory_resource.h
  libcxx/include/__memory_resource/monotonic_buffer_resource.h
  libcxx/include/__memory_resource/polymorphic_allocator.h
  libcxx/include/__memory_resource/pool_options.h
  libcxx/include/__memory_resource/synchronized_pool_resource.h
  libcxx/include/__memory_resource/unsynchronized_pool_resource.h
  libcxx/include/deque
  libcxx/include/forward_list
  libcxx/include/list
  libcxx/include/map
  libcxx/include/regex
  libcxx/include/set
  libcxx/include/unordered_map
  libcxx/include/unordered_set
  libcxx/include/vector
  libcxx/src/memory_resource.cpp
  libcxx/src/memory_resource_init_helper.h
  libcxx/src/support/runtime/memory_resource_fallback.ipp
  libcxx/src/support/runtime/memory_resource_init_helper.h
  libcxx/src/support/runtime/memory_resource_msvc.ipp

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