I see. Thank you!
On Sat, Apr 8, 2023 at 12:52 AM Jonathan Wakely <jwakely....@gmail.com> wrote:
>
> This looks good, thanks, but we're too close to the gcc 13 release now, and
> this isn't fixing any bugs. I'll push it after the release.
>
>
> On Thu, 23 Mar 2023, 11:07 Ken Matsui via Libstdc++, <libstd...@gcc.gnu.org>
> wrote:
>>
>> In the type_traits header, both integral_constant<bool> and __bool_constant
>> are used. This patch unifies those usages into __bool_constant.
>>
>> libstdc++-v3/ChangeLog:
>>
>> * include/std/type_traits: Use __bool_constant instead of
>> integral_constant.
>>
>> Signed-off-by: Ken Matsui <kmat...@cs.washington.edu>
>> ---
>> libstdc++-v3/include/std/type_traits | 32 ++++++++++++++--------------
>> 1 file changed, 16 insertions(+), 16 deletions(-)
>>
>> diff --git a/libstdc++-v3/include/std/type_traits
>> b/libstdc++-v3/include/std/type_traits
>> index 2bd607a8b8f..bc6982f9e64 100644
>> --- a/libstdc++-v3/include/std/type_traits
>> +++ b/libstdc++-v3/include/std/type_traits
>> @@ -578,19 +578,19 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
>> /// is_enum
>> template<typename _Tp>
>> struct is_enum
>> - : public integral_constant<bool, __is_enum(_Tp)>
>> + : public __bool_constant<__is_enum(_Tp)>
>> { };
>>
>> /// is_union
>> template<typename _Tp>
>> struct is_union
>> - : public integral_constant<bool, __is_union(_Tp)>
>> + : public __bool_constant<__is_union(_Tp)>
>> { };
>>
>> /// is_class
>> template<typename _Tp>
>> struct is_class
>> - : public integral_constant<bool, __is_class(_Tp)>
>> + : public __bool_constant<__is_class(_Tp)>
>> { };
>>
>> /// is_function
>> @@ -784,7 +784,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
>> /// is_trivial
>> template<typename _Tp>
>> struct is_trivial
>> - : public integral_constant<bool, __is_trivial(_Tp)>
>> + : public __bool_constant<__is_trivial(_Tp)>
>> {
>> static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
>> "template argument must be a complete class or an unbounded array");
>> @@ -793,7 +793,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
>> /// is_trivially_copyable
>> template<typename _Tp>
>> struct is_trivially_copyable
>> - : public integral_constant<bool, __is_trivially_copyable(_Tp)>
>> + : public __bool_constant<__is_trivially_copyable(_Tp)>
>> {
>> static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
>> "template argument must be a complete class or an unbounded array");
>> @@ -802,7 +802,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
>> /// is_standard_layout
>> template<typename _Tp>
>> struct is_standard_layout
>> - : public integral_constant<bool, __is_standard_layout(_Tp)>
>> + : public __bool_constant<__is_standard_layout(_Tp)>
>> {
>> static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
>> "template argument must be a complete class or an unbounded array");
>> @@ -817,7 +817,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
>> struct
>> _GLIBCXX20_DEPRECATED_SUGGEST("is_standard_layout && is_trivial")
>> is_pod
>> - : public integral_constant<bool, __is_pod(_Tp)>
>> + : public __bool_constant<__is_pod(_Tp)>
>> {
>> static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
>> "template argument must be a complete class or an unbounded array");
>> @@ -831,7 +831,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
>> struct
>> _GLIBCXX17_DEPRECATED
>> is_literal_type
>> - : public integral_constant<bool, __is_literal_type(_Tp)>
>> + : public __bool_constant<__is_literal_type(_Tp)>
>> {
>> static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
>> "template argument must be a complete class or an unbounded array");
>> @@ -840,13 +840,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
>> /// is_empty
>> template<typename _Tp>
>> struct is_empty
>> - : public integral_constant<bool, __is_empty(_Tp)>
>> + : public __bool_constant<__is_empty(_Tp)>
>> { };
>>
>> /// is_polymorphic
>> template<typename _Tp>
>> struct is_polymorphic
>> - : public integral_constant<bool, __is_polymorphic(_Tp)>
>> + : public __bool_constant<__is_polymorphic(_Tp)>
>> { };
>>
>> #if __cplusplus >= 201402L
>> @@ -855,14 +855,14 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
>> /// @since C++14
>> template<typename _Tp>
>> struct is_final
>> - : public integral_constant<bool, __is_final(_Tp)>
>> + : public __bool_constant<__is_final(_Tp)>
>> { };
>> #endif
>>
>> /// is_abstract
>> template<typename _Tp>
>> struct is_abstract
>> - : public integral_constant<bool, __is_abstract(_Tp)>
>> + : public __bool_constant<__is_abstract(_Tp)>
>> { };
>>
>> /// @cond undocumented
>> @@ -873,7 +873,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
>>
>> template<typename _Tp>
>> struct __is_signed_helper<_Tp, true>
>> - : public integral_constant<bool, _Tp(-1) < _Tp(0)>
>> + : public __bool_constant<_Tp(-1) < _Tp(0)>
>> { };
>> /// @endcond
>>
>> @@ -1333,7 +1333,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
>> /// has_virtual_destructor
>> template<typename _Tp>
>> struct has_virtual_destructor
>> - : public integral_constant<bool, __has_virtual_destructor(_Tp)>
>> + : public __bool_constant<__has_virtual_destructor(_Tp)>
>> {
>> static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
>> "template argument must be a complete class or an unbounded array");
>> @@ -1392,7 +1392,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
>> template<typename _Tp, typename _Up>
>> struct is_same
>> #ifdef _GLIBCXX_HAVE_BUILTIN_IS_SAME
>> - : public integral_constant<bool, __is_same(_Tp, _Up)>
>> + : public __bool_constant<__is_same(_Tp, _Up)>
>> #else
>> : public false_type
>> #endif
>> @@ -1408,7 +1408,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
>> /// is_base_of
>> template<typename _Base, typename _Derived>
>> struct is_base_of
>> - : public integral_constant<bool, __is_base_of(_Base, _Derived)>
>> + : public __bool_constant<__is_base_of(_Base, _Derived)>
>> { };
>>
>> #if __has_builtin(__is_convertible)
>> --
>> 2.40.0
>>
