Section 3: library functions
std::is_nothrow_constructible< _Tp, _Args > – Synopsis Inherits type< is_constructible< _Tp, _Args…>, __is_nt_constructible_impl< _Tp, _Args…> >. Detailed Description template<typename _Tp, typename… _Args>struct std::is_nothrow_constructible< _Tp, _Args > is_nothrow_constructible Definition at line 1041 of file type_traits. Author Generated automatically by Doxygen for libstdc++ from the source code.
std::is_nothrow_assignable< _Tp, _Up > – Synopsis Inherits type< is_assignable< _Tp, _Up >, __is_nt_assignable_impl< _Tp, _Up > >. Detailed Description template<typename _Tp, typename _Up>struct std::is_nothrow_assignable< _Tp, _Up > is_nothrow_assignable Definition at line 1147 of file type_traits. Author Generated automatically by Doxygen for libstdc++ from the source code.
std::is_move_constructible< _Tp > – Synopsis Inherits std::__is_move_constructible_impl< _Tp, bool >. Detailed Description template<typename _Tp>struct std::is_move_constructible< _Tp > is_move_constructible Definition at line 992 of file type_traits. Author Generated automatically by Doxygen for libstdc++ from the source code.
std::is_move_constructible,std::is_trivially_move_constructible,std::is_nothrow_move_constructible – std::is_move_constructible,std::is_trivially_move_constructible,std::is_nothrow_move_constructible Synopsis Defined in header<type_traits> template <class T> (1)(since C++ 11) struct is_move_constructible; template <class T> (2)(since C++ 11) struct is_trivially_move_constructible; template <class T> (3)(since C++ 11) struct is_nothrow_move_constructible; 1) If T is not a referenceable type (i.e., possibly cv-qualified void or a function type with a cv-qualifier-seq or a ref-qualifier), provides a…
std::is_move_constructible,std::is_trivially_move_constructible, – std::is_move_constructible,std::is_trivially_move_constructible, Synopsis Defined in header<type_traits> template <class T> (1)(since C++ 11) struct is_move_constructible; template <class T> (2)(since C++ 11) struct is_trivially_move_constructible; template <class T> (3)(since C++ 11) struct is_nothrow_move_constructible; 1) If T is not a referenceable type (i.e., possibly cv-qualified void or a function type with a cv-qualifier-seq or a ref-qualifier), provides a member constant…
std::is_move_assignable< _Tp > – Synopsis Inherits std::__is_move_assignable_impl< _Tp, bool >. Detailed Description template<typename _Tp>struct std::is_move_assignable< _Tp > is_move_assignable Definition at line 1136 of file type_traits. Author Generated automatically by Doxygen for libstdc++ from the source code.
std::is_move_assignable,std::is_trivially_move_assignable,std::is_nothrow_move_assignable – std::is_move_assignable,std::is_trivially_move_assignable,std::is_nothrow_move_assignable Synopsis Defined in header<type_traits> template <class T> (1)(since C++ 11) struct is_move_assignable; template <class T> (2)(since C++ 11) struct is_trivially_move_assignable; template <class T> (3)(since C++ 11) struct is_nothrow_move_assignable; 1) If T is not a referenceable type (i.e., possibly cv-qualified void or a function type with a cv-qualifier-seq or a ref-qualifier), provides a…
std::is_move_assignable,std::is_trivially_move_assignable, – std::is_move_assignable,std::is_trivially_move_assignable, Synopsis Defined in header<type_traits> template <class T> (1)(since C++ 11) struct is_move_assignable; template <class T> (2)(since C++ 11) struct is_trivially_move_assignable; template <class T> (3)(since C++ 11) struct is_nothrow_move_assignable; 1) If T is not a referenceable type (i.e., possibly cv-qualified void or a function type with a cv-qualifier-seq or a ref-qualifier), provides a member constant…
std::is_member_pointer – std::is_member_pointer Synopsis Defined in header<type_traits> template <class T> (since C++ 11) struct is_member_pointer; If T is pointer to non-static member object or a pointer to non-static member function, provides the member constant value equal true. For any other type, value is false. Template parameters T – a type to check Helper variable template…
std::is_member_object_pointer – std::is_member_object_pointer Synopsis Defined in header<type_traits> template <class T> (since C++ 11) struct is_member_object_pointer; Checks whether T is a non-static member object. Provides the member constant value which is equal to true, if T is a non-static member object type. Otherwise, value is equal to false. Template parameters T – a type to check…
std::is_member_function_pointer – std::is_member_function_pointer Synopsis Defined in header<type_traits> template <class T> (since C++ 11) struct is_member_function_pointer; Checks whether T is a non-static member function pointer. Provides the member constant value which is equal to true, if T is a non-static member function pointer type. Otherwise, value is equal to false. Template parameters T – a type…
std::is_lvalue_reference – std::is_lvalue_reference Synopsis Defined in header<type_traits> template <class T> (since C++ 11) struct is_lvalue_reference; Checks whether T is a lvalue reference type. Provides the member constant value which is equal to true, if T is a lvalue reference type. Otherwise, value is equal to false. Template parameters T – a type to check Helper…
std::is_literal_type – std::is_literal_type Synopsis Defined in header <type_traits> template< class T > (since C++11) struct is_literal_type; (deprecated in C++17) (removed in C++20) If T satisfies all requirements of LiteralType, provides the member constant value equal true. For any other type, value is false. The behavior is undefined if std::remove_all_extents_t<T> is an incomplete type and not…
std::is_invocable,std::is_invocable_r,std::is_nothrow_invocable,std::is_nothrow_invocable_r – std::is_invocable,std::is_invocable_r,std::is_nothrow_invocable,std::is_nothrow_invocable_r Synopsis Defined in header<type_traits> template <class Fn, class… ArgTypes> (1)(since C++ 17) struct is_invocable; template <class R, class Fn, class… ArgTypes> (2)(since C++ 17) struct is_invocable_r; template <class Fn, class… ArgTypes> (3)(since C++ 17) struct is_nothrow_invocable; template <class R, class Fn, class… ArgTypes> (4)(since C++ 17) struct is_nothrow_invocable_r; 1) Determines whether Fn…
std::is_invocable,std::is_invocable_r,std::is_nothrow_invocable, – std::is_invocable,std::is_invocable_r,std::is_nothrow_invocable, Synopsis Defined in header<type_traits> template <class Fn, class… ArgTypes> (1)(since C++ 17) struct is_invocable; template <class R, class Fn, class… ArgTypes> (2)(since C++ 17) struct is_invocable_r; template <class Fn, class… ArgTypes> (3)(since C++ 17) struct is_nothrow_invocable; template <class R, class Fn, class… ArgTypes> (4)(since C++ 17) struct is_nothrow_invocable_r; 1) Determines whether Fn can…
std::is_integral – std::is_integral Synopsis Defined in header<type_traits> template <class T> (since C++ 11) struct is_integral; Checks whether T is an integral type. Provides the member constant value which is equal to true, if T is the type bool, char, char8_t, char16_t, char32_t, wchar_t, short, int, long, long long, or any implementation-defined extended integer types, including…
std::is_heap_until – std::is_heap_until Synopsis Defined in header <algorithm> template< class RandomIt > (since C++11) RandomIt is_heap_until( RandomIt first, RandomIt last ); (until C++20) template< class RandomIt > (since C++20) constexpr RandomIt is_heap_until( RandomIt first, RandomIt last ); template< class ExecutionPolicy, class RandomIt > (2) (since C++17) RandomIt is_heap_until( ExecutionPolicy&& policy, RandomIt first, RandomIt last );…
std::is_heap – std::is_heap Synopsis Defined in header <algorithm> template< class RandomIt > (since C++11) bool is_heap( RandomIt first, RandomIt last ); (until C++20) template< class RandomIt > (since C++20) constexpr bool is_heap( RandomIt first, RandomIt last ); template< class ExecutionPolicy, class RandomIt > (2) (since C++17) bool is_heap( ExecutionPolicy&& policy, RandomIt first, RandomIt last );…
std::is_fundamental – std::is_fundamental Synopsis Defined in header<type_traits> template <class T> (since C++ 11) struct is_fundamental; If T is a fundamental type (that is, arithmetic type, void, or nullptr_t), provides the member constant value equal true. For any other type, value is false. Template parameters T – a type to check Helper variable template template< class…
std::is_function – std::is_function Synopsis Defined in header<type_traits> template <class T> (since C++ 11) struct is_function; Checks whether T is a function type. Types like std::function, lambdas, classes with overloaded operator() and pointers to functions don’t count as function types. Provides the member constant value which is equal to true, if T is a function type….