From: Ken Matsui <kmatsui@gcc.gnu.org>
To: gcc-patches@gcc.gnu.org
Cc: libstdc++@gcc.gnu.org, Ken Matsui <kmatsui@gcc.gnu.org>
Subject: [PATCH v10 2/5] libstdc++: Use new built-in trait __is_reference for std::is_reference
Date: Wed, 12 Jul 2023 19:33:36 -0700 [thread overview]
Message-ID: <20230713023731.15571-3-kmatsui@gcc.gnu.org> (raw)
In-Reply-To: <20230713023731.15571-1-kmatsui@gcc.gnu.org>
This patch gets std::is_reference to dispatch to new built-in trait
__is_reference.
libstdc++-v3/ChangeLog:
* include/std/type_traits (is_reference): Use __is_reference built-in
trait.
(is_reference_v): Likewise.
Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org>
---
libstdc++-v3/include/std/type_traits | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits
index 0e7a9c9c7f3..2a14df7e5f9 100644
--- a/libstdc++-v3/include/std/type_traits
+++ b/libstdc++-v3/include/std/type_traits
@@ -639,6 +639,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
// Composite type categories.
/// is_reference
+#if __has_builtin(__is_reference)
+ template<typename _Tp>
+ struct is_reference
+ : public __bool_constant<__is_reference(_Tp)>
+ { };
+#else
template<typename _Tp>
struct is_reference
: public false_type
@@ -653,6 +659,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
struct is_reference<_Tp&&>
: public true_type
{ };
+#endif
/// is_arithmetic
template<typename _Tp>
@@ -3192,12 +3199,19 @@ template <typename _Tp>
inline constexpr bool is_class_v = __is_class(_Tp);
template <typename _Tp>
inline constexpr bool is_function_v = is_function<_Tp>::value;
+
+#if __has_builtin(__is_reference)
+template <typename _Tp>
+ inline constexpr bool is_reference_v = __is_reference(_Tp);
+#else
template <typename _Tp>
inline constexpr bool is_reference_v = false;
template <typename _Tp>
inline constexpr bool is_reference_v<_Tp&> = true;
template <typename _Tp>
inline constexpr bool is_reference_v<_Tp&&> = true;
+#endif
+
template <typename _Tp>
inline constexpr bool is_arithmetic_v = is_arithmetic<_Tp>::value;
template <typename _Tp>
--
2.41.0
next prev parent reply other threads:[~2023-07-13 2:39 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-26 4:30 [PATCH 00/10] c++, libstdc++: get std::is_object to dispatch to new built-in traits Ken Matsui
2023-03-26 4:30 ` [PATCH 01/10] c++: implement __is_reference built-in trait Ken Matsui
2023-03-26 4:30 ` [PATCH 02/10] libstdc++: use new built-in trait __is_reference for std::is_reference Ken Matsui
2023-03-26 4:30 ` [PATCH 03/10] c++: implement __is_function built-in trait Ken Matsui
2023-03-26 4:30 ` [PATCH 04/10] libstdc++: use new built-in trait __is_function for std::is_function Ken Matsui
2023-03-26 4:30 ` [PATCH 05/10] libstdc++: use std::is_void instead of __is_void in helper_functions.h Ken Matsui
2023-03-26 4:30 ` [PATCH 06/10] libstdc++: remove unused __is_void in cpp_type_traits.h Ken Matsui
2023-03-26 4:30 ` [PATCH 07/10] c++: rename __is_void defined in pr46567.C to ____is_void Ken Matsui
2023-03-26 4:30 ` [PATCH 08/10] c++: implement __is_void built-in trait Ken Matsui
2023-03-26 4:30 ` [PATCH 09/10] libstdc++: use new built-in trait __is_void for std::is_void Ken Matsui
2023-03-26 4:30 ` [PATCH 10/10] libstdc++: make std::is_object dispatch to new built-in traits Ken Matsui
2023-03-30 18:32 ` [PATCH 0/7] c++, libstdc++: get std::is_object to " Ken Matsui
2023-03-30 18:39 ` [PATCH v2 " Ken Matsui
2023-03-30 18:39 ` [PATCH v2 1/7] c++: implement __is_reference built-in trait Ken Matsui
2023-03-30 18:39 ` [PATCH v2 2/7] libstdc++: use new built-in trait __is_reference for std::is_reference Ken Matsui
2023-03-30 18:39 ` [PATCH v2 3/7] c++: implement __is_function built-in trait Ken Matsui
2023-03-30 18:39 ` [PATCH v2 4/7] libstdc++: use new built-in trait __is_function for std::is_function Ken Matsui
2023-03-30 18:39 ` [PATCH v2 5/7] c++, libstdc++: implement __is_void built-in trait Ken Matsui
2023-03-30 18:39 ` [PATCH v2 6/7] libstdc++: use new built-in trait __is_void for std::is_void Ken Matsui
2023-03-30 18:39 ` [PATCH v2 7/7] libstdc++: make std::is_object dispatch to new built-in traits Ken Matsui
2023-04-02 7:53 ` [PATCH v3 0/6] c++, libstdc++: get std::is_object to " Ken Matsui
2023-04-02 7:53 ` [PATCH v3 1/6] c++: implement __is_reference built-in trait Ken Matsui
2023-04-02 7:53 ` [PATCH v3 2/6] libstdc++: use new built-in trait __is_reference for std::is_reference Ken Matsui
2023-04-02 7:53 ` [PATCH v3 3/6] c++: implement __is_function built-in trait Ken Matsui
2023-04-02 7:53 ` [PATCH v3 4/6] libstdc++: use new built-in trait __is_function for std::is_function Ken Matsui
2023-06-09 17:54 ` Patrick Palka
2023-06-09 23:53 ` Ken Matsui
2023-04-02 7:53 ` [PATCH v3 5/6] c++, libstdc++: implement __is_void built-in trait Ken Matsui
2023-04-02 7:53 ` [PATCH v3 6/6] libstdc++: make std::is_object dispatch to new built-in traits Ken Matsui
2023-06-11 2:43 ` [PATCH v4 0/6] c++, libstdc++: get std::is_object to " Ken Matsui
2023-06-11 2:43 ` [PATCH v4 1/6] c++: implement __is_reference built-in trait Ken Matsui
2023-06-11 2:43 ` [PATCH v4 2/6] libstdc++: use new built-in trait __is_reference for std::is_reference Ken Matsui
2023-06-12 18:09 ` François Dumont
2023-06-12 18:13 ` Ken Matsui
2023-06-11 2:43 ` [PATCH v4 3/6] c++: implement __is_function built-in trait Ken Matsui
2023-06-11 2:43 ` [PATCH v4 4/6] libstdc++: use new built-in trait __is_function for std::is_function Ken Matsui
2023-06-11 2:43 ` [PATCH v4 5/6] c++, libstdc++: implement __is_void built-in trait Ken Matsui
2023-06-11 2:43 ` [PATCH v4 6/6] libstdc++: make std::is_object dispatch to new built-in traits Ken Matsui
2023-06-12 22:22 ` [PATCH v5 0/6] c++, libstdc++: get std::is_object to " Ken Matsui
2023-06-12 22:22 ` [PATCH v5 1/6] c++: implement __is_reference built-in trait Ken Matsui
2023-06-12 22:22 ` [PATCH v5 2/6] libstdc++: use new built-in trait __is_reference for std::is_reference Ken Matsui
2023-06-12 22:22 ` [PATCH v5 3/6] c++: implement __is_function built-in trait Ken Matsui
2023-06-12 22:22 ` [PATCH v5 4/6] libstdc++: use new built-in trait __is_function for std::is_function Ken Matsui
2023-06-12 22:22 ` [PATCH v5 5/6] c++, libstdc++: implement __is_void built-in trait Ken Matsui
2023-06-12 22:22 ` [PATCH v5 6/6] libstdc++: make std::is_object dispatch to new built-in traits Ken Matsui
2023-06-14 5:10 ` François Dumont
2023-06-14 5:25 ` Ken Matsui
2023-06-12 22:39 ` [PATCH v6 0/6] c++, libstdc++: get std::is_object to " Ken Matsui
2023-06-12 22:39 ` [PATCH v6 1/6] c++: implement __is_reference built-in trait Ken Matsui
2023-06-12 22:39 ` [PATCH v6 2/6] libstdc++: use new built-in trait __is_reference for std::is_reference Ken Matsui
2023-06-12 22:39 ` [PATCH v6 3/6] c++: implement __is_function built-in trait Ken Matsui
2023-06-12 22:39 ` [PATCH v6 4/6] libstdc++: use new built-in trait __is_function for std::is_function Ken Matsui
2023-06-12 22:39 ` [PATCH v6 5/6] c++, libstdc++: implement __is_void built-in trait Ken Matsui
2023-06-12 22:39 ` [PATCH v6 6/6] libstdc++: make std::is_object dispatch to new built-in traits Ken Matsui
2023-06-12 22:47 ` [PATCH v7 0/6] c++, libstdc++: get std::is_object to " Ken Matsui
2023-06-12 22:47 ` [PATCH v7 1/6] c++: implement __is_reference built-in trait Ken Matsui
2023-06-20 16:06 ` Patrick Palka
2023-06-12 22:47 ` [PATCH v7 2/6] libstdc++: use new built-in trait __is_reference for std::is_reference Ken Matsui
2023-06-20 16:07 ` Patrick Palka
2023-06-12 22:47 ` [PATCH v7 3/6] c++: implement __is_function built-in trait Ken Matsui
2023-06-20 16:05 ` Patrick Palka
2023-06-12 22:47 ` [PATCH v7 4/6] libstdc++: use new built-in trait __is_function for std::is_function Ken Matsui
2023-06-20 16:05 ` Patrick Palka
2023-06-12 22:47 ` [PATCH v7 5/6] c++, libstdc++: implement __is_void built-in trait Ken Matsui
2023-06-20 16:00 ` Patrick Palka
2023-06-12 22:47 ` [PATCH v7 6/6] libstdc++: make std::is_object dispatch to new built-in traits Ken Matsui
2023-06-15 10:49 ` [PATCH v7 0/6] c++, libstdc++: get std::is_object to " Ken Matsui
2023-06-20 13:19 ` Ken Matsui
2023-06-20 15:32 ` Patrick Palka
2023-06-24 15:12 ` Ken Matsui
2023-07-08 5:08 ` [PATCH v8 " Ken Matsui
2023-07-08 5:08 ` [PATCH v8 1/6] c++: implement __is_reference built-in trait Ken Matsui
2023-07-08 5:08 ` [PATCH v8 2/6] libstdc++: use new built-in trait __is_reference for std::is_reference Ken Matsui
2023-07-12 10:08 ` Jonathan Wakely
2023-07-08 5:08 ` [PATCH v8 3/6] c++: implement __is_function built-in trait Ken Matsui
2023-07-08 5:08 ` [PATCH v8 4/6] libstdc++: use new built-in trait __is_function for std::is_function Ken Matsui
2023-07-12 10:10 ` Jonathan Wakely
2023-07-08 5:08 ` [PATCH v8 5/6] c++, libstdc++: implement __is_void built-in trait Ken Matsui
2023-07-08 5:08 ` [PATCH v8 6/6] libstdc++: make std::is_object dispatch to new built-in traits Ken Matsui
2023-07-13 2:33 ` [PATCH v10 0/5] c++, libstdc++: Make " Ken Matsui
2023-07-13 2:33 ` [PATCH v10 1/5] c++: Implement __is_reference built-in trait Ken Matsui
2023-07-13 2:33 ` Ken Matsui [this message]
2023-07-13 2:56 ` [PATCH v10 2/5] libstdc++: Use new built-in trait __is_reference for std::is_reference Ken Matsui
2023-09-04 15:00 ` [PING][PATCH " Ken Matsui
2023-07-13 2:33 ` [PATCH v10 3/5] c++: Implement __is_function built-in trait Ken Matsui
2023-07-13 2:41 ` Ken Matsui
2023-08-22 19:52 ` Patrick Palka
2023-09-04 15:00 ` [PING][PATCH " Ken Matsui
2023-07-13 2:33 ` [PATCH v10 4/5] libstdc++: Use new built-in trait __is_function for std::is_function Ken Matsui
2023-08-08 20:35 ` Jonathan Wakely
2023-07-13 2:33 ` [PATCH v10 5/5] libstdc++: Make std::is_object dispatch to new built-in traits Ken Matsui
2023-09-01 13:00 ` [PING][PATCH " Ken Matsui
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