[all-commits] [llvm/llvm-project] 3c6bd1: [libc++] Rename __identity to __type_identity

[philnik777 via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3c6bd176fb898352aaa03facdd4626af9043884a
      https://github.com/llvm/llvm-project/commit/3c6bd176fb898352aaa03facdd4626af9043884a
  Author: Nikolas Klauser <nikolasklauser at berlin.de>
  Date:   2022-03-25 (Fri, 25 Mar 2022)

  Changed paths:
    M libcxx/include/__memory/unique_ptr.h
    M libcxx/include/deque
    M libcxx/include/forward_list
    M libcxx/include/list
    M libcxx/include/map
    M libcxx/include/set
    M libcxx/include/type_traits
    M libcxx/include/unordered_map
    M libcxx/include/unordered_set
    M libcxx/include/variant
    M libcxx/include/vector

  Log Message:
  -----------
  [libc++] Rename __identity to __type_identity

In C++20 the type trait `type_identity` was introduced. For the same purpose there is `__identity` for pre-C++20 code. The name is confusing, because since C++20 there is also `identity`, which isn't a type trait.

Reviewed By: ldionne, Mordante, #libc

Spies: EricWF, libcxx-commits

Differential Revision: https://reviews.llvm.org/D122017