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std::bad_function_call

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Defined in header <functional>
class bad_function_call;
(desde C++11)

std::bad_function_call is the type of the exception thrown by std::function::operator() if the function wrapper has no target.

cpp/error/exceptionstd-bad function call-inheritance.svg
Acerca de esta imagen

Inheritance diagram

Contenido

[editar] Las funciones miembro

(constructor)
bad_function_call()
(miembro público función)

std::bad_function_call::bad_function_call()

bad_function_call();

Constructs a new instance of std::bad_function_call.

Parameters

(none)

Exceptions

noexcept specification:  
noexcept
  (desde C++11)

Inherited from std::exception

Member functions

[virtual]
destructs el objeto de excepción
Original:
destructs the exception object
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(Virtual Member público of std::exception función) [edit]
[virtual]
devuelve una cadena explicativa
Original:
returns an explanatory string
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(Virtual Member público of std::exception función) [edit]

[editar] Ejemplo

#include <iostream>
#include <functional>
 
int main()
{
    std::function<int()> f = nullptr;
    try {
        f();
    } catch(const std::bad_function_call& e) {
        std::cout << e.what() << '\n';
    }
}

Output:

bad function call

[editar] Ver también

(C++11)
envuelve objeto que se puede llamar de cualquier tipo con la firma especificada llamada de función
Original:
wraps callable object of any type with specified function call signature
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(clase de plantilla) [edit]