From: Ken Matsui <kmatsui@cs.washington.edu>
To: gcc-patches@gcc.gnu.org
Cc: libstdc++@gcc.gnu.org, ppalka@redhat.com,
Ken Matsui <kmatsui@cs.washington.edu>
Subject: [PATCH 2/2] libstdc++: use new built-in trait __remove_pointer
Date: Mon, 20 Mar 2023 15:22:49 -0700 [thread overview]
Message-ID: <20230320222249.20069-2-kmatsui@cs.washington.edu> (raw)
In-Reply-To: <20230320222249.20069-1-kmatsui@cs.washington.edu>
This patch lets libstdc++ use new built-in trait __remove_pointer.
libstdc++-v3/ChangeLog:
* include/std/type_traits (remove_pointer): Use __remove_pointer built-in trait.
---
libstdc++-v3/include/std/type_traits | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits
index 2bd607a8b8f..8b0db4d37bc 100644
--- a/libstdc++-v3/include/std/type_traits
+++ b/libstdc++-v3/include/std/type_traits
@@ -2023,19 +2023,25 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
// Pointer modifications.
+ /// remove_pointer
+#if __has_builtin(__remove_pointer)
+ template<typename _Tp>
+ struct remove_pointer
+ { using type = __remove_pointer(_Tp); };
+#else
template<typename _Tp, typename>
struct __remove_pointer_helper
- { typedef _Tp type; };
+ { using type = _Tp; };
template<typename _Tp, typename _Up>
struct __remove_pointer_helper<_Tp, _Up*>
- { typedef _Up type; };
+ { using type = _Up; };
- /// remove_pointer
template<typename _Tp>
struct remove_pointer
: public __remove_pointer_helper<_Tp, __remove_cv_t<_Tp>>
{ };
+#endif
template<typename _Tp, typename = void>
struct __add_pointer_helper
--
2.40.0
next prev parent reply other threads:[~2023-03-20 22:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-20 22:22 [PATCH 1/2] c++: implement __remove_pointer built-in trait Ken Matsui
2023-03-20 22:22 ` Ken Matsui [this message]
2023-06-15 12:21 Ken Matsui
2023-06-15 12:21 ` [PATCH 2/2] libstdc++: use new built-in trait __remove_pointer Ken Matsui
2023-06-24 10:07 [PATCH 1/2] c++: implement __remove_pointer built-in trait Ken Matsui
2023-06-24 10:12 ` Ken Matsui
2023-06-24 10:12 ` [PATCH 2/2] libstdc++: use new built-in trait __remove_pointer Ken Matsui
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