std::is_pod - cppreference.com

De cppreference.com

Definido no cabeçalho `<type_traits>`

`template< class T > struct is_pod;`		(desde C++11)

Se T é um PODType ("plain tipo antigo"), isto é, tanto trivial e layout padrão, fornece o membro constante value true igual. Para qualquer outro tipo, é value false.

Original:

If T is a PODType ("plain old data type"), that is, both trivial and standard-layout, 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


	`true` se `T` is a POD type , `false` contrário Original: `true` if `T` is a POD type , `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


	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>`

Notas

Objetos de tipos POD são totalmente compatíveis com a linguagem de programação C.

Original:

Objects of POD types are fully compatible with the C programming language.

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

Exemplo

#include <iostream>
#include <type_traits>

struct A {
    int m;
};

struct B {
    int m1;
private:
    int m2;
};

struct C {
    virtual void foo();
};

int main()
{
    std::cout << std::boolalpha;
    std::cout << std::is_pod<A>::value << '\n';
    std::cout << std::is_pod<B>::value << '\n';
    std::cout << std::is_pod<C>::value << '\n';
}

Saída:

Veja também


	verifica se um tipo é o layout padrão tipo Original: checks if a type is standard-layout 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) [edit]

	verifica se um tipo é trivial Original: checks if a type is trivial 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) [edit]