std::bad_weak_ptr

 

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std::bad_weak_ptr

Las funciones miembro Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

bad_weak_ptr::bad_weak_ptr

 

Defined in header <memory>
class bad_weak_ptr;		(ya que C + +11)

std::bad_weak_ptr es el tipo del objeto lanzado como excepciones por los constructores de std::shared_ptr que tienen std::weak_ptr como argumento, cuando el std::weak_ptr se refiere a un objeto ya suprimidos .

Original:

std::bad_weak_ptr is the type of the object thrown as exceptions by the constructors of std::shared_ptr that take std::weak_ptr as the argument, when the std::weak_ptr refers to an already deleted object.

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Las funciones miembro

(constructor)	construye el objeto bad_weak_ptr Original: constructs the bad_weak_ptr object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (miembro público función)

Inherited from std::exception

Member functions

(destructor) [virtual]	destructs el objeto de excepción Original: destructs the exception object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Virtual Member público of std::exception función)
what [virtual]	devuelve una cadena explicativa Original: returns an explanatory string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Virtual Member público of std::exception función)

Ejemplo

#include <memory>
#include <iostream>
int main()
{
    std::shared_ptr<int> p1(new int(42));
    std::weak_ptr<int> wp(p1);
    p1.reset();
    try {
        std::shared_ptr<int> p2(wp);
    } catch(const std::bad_weak_ptr& e) {
        std::cout << e.what() << '\n';
    }
}

Output:

std::bad_weak_ptr

Ver también

shared_ptr (C++11)	smart pointer with shared object ownership semantics (clase de plantilla)
weak_ptr (C++11)	débil referencia a un objeto administrado por std::shared_ptr Original: weak reference to an object managed by std::shared_ptr The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (clase de plantilla)