diff mbox series

[2/2] libstdc++: use new built-in trait __remove_pointer

Message ID 20230615122129.20213-2-kmatsui@cs.washington.edu
State Superseded
Headers
Series [1/2] c++: implement __remove_pointer built-in trait |

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Commit Message

Ken Matsui June 15, 2023, 12:21 p.m. UTC 
  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.

Signed-off-by: Ken Matsui <kmatsui@cs.washington.edu>
---
 libstdc++-v3/include/std/type_traits | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits
index 0e7a9c9c7f3..81497e2f3e1 100644
--- a/libstdc++-v3/include/std/type_traits
+++ b/libstdc++-v3/include/std/type_traits
@@ -2023,6 +2023,12 @@  _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
     { using type = _Tp; };
@@ -2031,11 +2037,11 @@  _GLIBCXX_BEGIN_NAMESPACE_VERSION
     struct __remove_pointer_helper<_Tp, _Up*>
     { 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