std::is_member_object_pointer

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Definido no cabeçalho <type_traits>
template< class T > struct is_member_object_pointer;		(desde C++11)

Se T é ponteiro para não-estático objeto membro, fornece o membro constante value true igual. Para qualquer outro tipo, é value false.

Original:

If T is pointer to non-static member object, provides the member constant value equal true. For any other type, value is false.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Herdado de std::integral_constant

Member constants

value [estática]	true se T is a pointer to member object , false contrário Original: true if T is a pointer to member object , false otherwise The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro estático público constante)

Member functions

operator bool	converte o objeto em bool, retorna value Original: converts the object to bool, returns value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função pública membro)

Member types

Tipo Original: Type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Definition
value_type	bool
type	std::integral_constant<bool, value>

Possível implementação

template<class T> struct is_member_object_pointer : std::integral_constant< bool, std::is_member_pointer<T>::value && !std::is_member_function_pointer<T>::value > {};

Exemplo

#include <iostream>
#include <type_traits>

int main() {
    class cls {};
    std::cout << (std::is_member_object_pointer<int(cls::*)>::value
                     ? "T is member object pointer"
                     : "T is not a member object pointer") << '\n';
    std::cout << (std::is_member_object_pointer<int(cls::*)()>::value
                     ? "T is member object pointer"
                     : "T is not a member object pointer") << '\n';
}

Saída:

T is member object pointer
T is not a member object pointer

Veja também

is_pointer (C++11)	verifica se um tipo é um tipo de ponteiro Original: checks if a type is a pointer type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (modelo de classe)
is_member_pointer (C++11)	checks if a type is a pointer to a non-static member function or object (modelo de classe)
is_member_function_pointer (C++11)	verifica se um tipo é um ponteiro para uma função membro não-estático Original: checks if a type is a pointer to a non-static member function The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (modelo de classe)