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| author | Dimitry Andric <dimitry@andric.com> | 2026-01-05 19:54:32 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2026-04-25 14:14:20 +0000 |
| commit | a114ece3e6158f49088b0704b4afef07040d83f3 (patch) | |
| tree | 08d7601d7242a964f44f25052fda9e9d856530f1 | |
| parent | bb6713d38cc0d988378394f599d81d3a83dbaf03 (diff) | |
libcxx-compat: revert llvmorg-19-init-5639-ga10aa4485e83:
[libc++] Simplify the implementation of remove_reference (#85207)
GCC 13 introduced the type trait `__remove_reference`. We can simplify
the implementation of `remove_reference` a bit by using it.
This is part of making libc++ 21 build with clang 18.
PR: 292067
MFC after: 1 month
| -rw-r--r-- | contrib/llvm-project/libcxx/include/__type_traits/remove_reference.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/contrib/llvm-project/libcxx/include/__type_traits/remove_reference.h b/contrib/llvm-project/libcxx/include/__type_traits/remove_reference.h index 7cc3ca1705de..f7522fa1a67d 100644 --- a/contrib/llvm-project/libcxx/include/__type_traits/remove_reference.h +++ b/contrib/llvm-project/libcxx/include/__type_traits/remove_reference.h @@ -34,7 +34,14 @@ struct remove_reference { template <class _Tp> using __libcpp_remove_reference_t = typename remove_reference<_Tp>::type; #else -# error "remove_reference not implemented!" +// clang-format off +template <class _Tp> struct remove_reference {using type _LIBCPP_NODEBUG = _Tp;}; +template <class _Tp> struct remove_reference<_Tp&> {using type _LIBCPP_NODEBUG = _Tp;}; +template <class _Tp> struct remove_reference<_Tp&&> {using type _LIBCPP_NODEBUG = _Tp;}; +// clang-format on + +template <class _Tp> +using __libcpp_remove_reference_t = typename remove_reference<_Tp>::type; #endif // __has_builtin(__remove_reference_t) #if _LIBCPP_STD_VER >= 14 |