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std::is_pod

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C++
 
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integral_constant(C++11)
 
Defined in header <type_traits>
template< class T >
struct is_pod;
 (ya que C + +11)
Si T es un PODType ("Tipo de datos sin formato antiguo"), es decir, tanto trivial y disposición estándar, proporciona el miembro constante value true igual. Para cualquier otro tipo, es 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.
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Contenido

Inherited from std::integral_constant

Member constants

value
[estático]
true si T is a POD type , false lo contrario
Original:
true if T is a POD type , false otherwise
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(público miembro constante estática)

Member functions

operator bool
convierte el objeto a bool, devuelve value
Original:
converts the object to bool, returns value
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(miembro público función)

Member types

Tipo
Original:
Type
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 Definition
value_type bool
type std::integral_constant<bool, value>

[editar] Notas

Los objetos de tipo POD son totalmente compatibles con el lenguaje de programación C. .
Original:
Objects of POD types are fully compatible with the C programming language.
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[editar] Ejemplo

#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';
}

Output: 

true
false
false

[editar] Ver también

(C++11)
comprueba si un tipo es estándar de diseño de tipo
Original:
checks if a type is standard-layout type
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(clase de plantilla) [edit]
(C++11)
Comprueba si un tipo es trivial
Original:
checks if a type is trivial
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(clase de plantilla) [edit]
Obtenido de «http://es.cppreference.com/mwiki/index.php?title=cpp/types/is_pod&oldid=21805»