[all-commits] [llvm/llvm-project] 5c703f: [libc++] Build and test with -Wundef warning. NFC.

[Marek Kurdej via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 5c703f0fd81960386cc02b9ca618e866c9d5e29a
      https://github.com/llvm/llvm-project/commit/5c703f0fd81960386cc02b9ca618e866c9d5e29a
  Author: Marek Kurdej <marek.kurdej+llvm.org at gmail.com>
  Date:   2021-04-01 (Thu, 01 Apr 2021)

  Changed paths:
    M libcxx/CMakeLists.txt
    M libcxx/include/__config
    M libcxx/include/experimental/simd
    M libcxx/include/ext/hash_map
    M libcxx/include/ext/hash_set
    M libcxx/include/future
    M libcxx/include/type_traits
    M libcxx/test/std/atomics/types.pass.cpp
    M libcxx/test/std/numerics/rand/rand.eng/rand.eng.mers/ctor_sseq_all_zero.pass.cpp
    M libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.hash/hash_shared_ptr.pass.cpp
    M libcxx/test/support/test_macros.h
    M libcxx/utils/libcxx/test/params.py

  Log Message:
  -----------
  [libc++] Build and test with -Wundef warning. NFC.

This will avoid typos like `_LIBCPP_STD_VERS` (<future>) or using `#if TEST_STD_VER > 17` without including "test_macros.h".

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D99515