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* [gcc(refs/users/kmatsui/heads/is_pointer)] libstdc++: use new built-in trait __is_pointer
@ 2023-07-10 5:41 Ken Matsui
0 siblings, 0 replies; 2+ messages in thread
From: Ken Matsui @ 2023-07-10 5:41 UTC (permalink / raw)
To: gcc-cvs, libstdc++-cvs
https://gcc.gnu.org/g:b12e0ee48cb9b188e0e8fe48d24a0c7bb46282f0
commit b12e0ee48cb9b188e0e8fe48d24a0c7bb46282f0
Author: Ken Matsui <kmatsui@gcc.gnu.org>
Date: Sun Jul 9 22:20:20 2023 -0700
libstdc++: use new built-in trait __is_pointer
This patch lets libstdc++ use new built-in trait __is_pointer.
libstdc++-v3/ChangeLog:
* include/std/type_traits (is_pointer): Use __is_pointer
built-in trait.
(is_pointer_v): Likewise.
Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org>
Diff:
---
libstdc++-v3/include/std/type_traits | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits
index 0e7a9c9c7f3..b8291a31d3e 100644
--- a/libstdc++-v3/include/std/type_traits
+++ b/libstdc++-v3/include/std/type_traits
@@ -515,6 +515,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
struct is_array<_Tp[]>
: public true_type { };
+ /// is_pointer
+#if __has_builtin(__is_pointer)
+ template<typename _Tp>
+ struct is_pointer
+ : public __bool_constant<__is_pointer(_Tp)>
+ { };
+#else
template<typename>
struct __is_pointer_helper
: public false_type { };
@@ -523,11 +530,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
struct __is_pointer_helper<_Tp*>
: public true_type { };
- /// is_pointer
template<typename _Tp>
struct is_pointer
: public __is_pointer_helper<__remove_cv_t<_Tp>>::type
{ };
+#endif
/// is_lvalue_reference
template<typename>
@@ -3168,8 +3175,14 @@ template <typename _Tp>
template <typename _Tp, size_t _Num>
inline constexpr bool is_array_v<_Tp[_Num]> = true;
+#if __has_builtin(__is_pointer)
+template <typename _Tp>
+ inline constexpr bool is_pointer_v = __is_pointer(_Tp);
+#else
template <typename _Tp>
inline constexpr bool is_pointer_v = is_pointer<_Tp>::value;
+#endif
+
template <typename _Tp>
inline constexpr bool is_lvalue_reference_v = false;
template <typename _Tp>
^ permalink raw reply [flat|nested] 2+ messages in thread
* [gcc(refs/users/kmatsui/heads/is_pointer)] libstdc++: use new built-in trait __is_pointer
@ 2023-07-10 5:24 Ken Matsui
0 siblings, 0 replies; 2+ messages in thread
From: Ken Matsui @ 2023-07-10 5:24 UTC (permalink / raw)
To: gcc-cvs, libstdc++-cvs
https://gcc.gnu.org/g:5e5eab817fd593625b385ff6b48993b6c77eb277
commit 5e5eab817fd593625b385ff6b48993b6c77eb277
Author: Ken Matsui <kmatsui@gcc.gnu.org>
Date: Sun Jul 9 22:20:20 2023 -0700
libstdc++: use new built-in trait __is_pointer
This patch lets libstdc++ use new built-in trait __is_pointer.
libstdc++-v3/ChangeLog:
* include/std/type_traits (is_pointer): Use __is_pointer
built-in trait.
(is_pointer_v): Likewise.
Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org>
Diff:
---
libstdc++-v3/include/std/type_traits | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits
index 0e7a9c9c7f3..d83db98403b 100644
--- a/libstdc++-v3/include/std/type_traits
+++ b/libstdc++-v3/include/std/type_traits
@@ -515,6 +515,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
struct is_array<_Tp[]>
: public true_type { };
+ /// is_pointer
+#if __has_builtin(__is_pointer)
+ template<typename _Tp>
+ struct is_pointer
+ : public __bool_constant<__is_pointer(_Tp)>
+ { };
+#else
template<typename>
struct __is_pointer_helper
: public false_type { };
@@ -523,11 +530,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
struct __is_pointer_helper<_Tp*>
: public true_type { };
- /// is_pointer
template<typename _Tp>
struct is_pointer
: public __is_pointer_helper<__remove_cv_t<_Tp>>::type
{ };
+#endif
/// is_lvalue_reference
template<typename>
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