Namespace
Varianti

std::bad_function_call

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< cpp‎ | utility‎ | functional

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C++
 
Utilità libreria
Tipo di supporto (basic types, RTTI, type traits)
Gestione della memoria dinamica
La gestione degli errori
Programma di utilità
Funzioni variadic
Data e ora
Funzione oggetti
initializer_list(C++11)
bitset
hash(C++11)
Gli operatori relazionali
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Relational operators
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
Coppie e tuple
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Pairs and tuples
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
Swap, in avanti e spostare
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Swap, forward and move
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swap
forward(C++11)
move(C++11)
move_if_noexcept(C++11)
declval(C++11)
 
Funzione oggetti
Funzione wrapper
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Function wrappers
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function(C++11)
mem_fn(C++11)
bad_function_call(C++11)
Associare
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Bind
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bind(C++11)
is_bind_expression(C++11)
is_placeholder(C++11)
_1, _2, _3, ...(C++11)
Wrapper di riferimento
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Reference wrappers
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reference_wrapper(C++11)
ref
cref		(C++11)
(C++11)
Operatore wrapper
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Operator wrappers
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Negatori
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Negators
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Sconsigliata a leganti e adattatori
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Deprecated binders and adaptors
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unary_function(deprecato)
binary_function(deprecato)
ptr_fun(deprecato)
pointer_to_unary_function(deprecato)
pointer_to_binary_function(deprecato)
mem_fun(deprecato)
mem_fun_t
mem_fun1_t
const_mem_fun_t
const_mem_fun1_t		(deprecato)
(deprecato)
(deprecato)
(deprecato)
mem_fun_ref(deprecato)
mem_fun_ref_t
mem_fun1_ref_t
const_mem_fun_ref_t
const_mem_fun1_ref_t		(deprecato)
(deprecato)
(deprecato)
(deprecato)
binder1st
binder2nd		(deprecato)
(deprecato)
bind1st
bind2nd		(deprecato)
(deprecato)
 
Elemento definito nell'header <functional>
class bad_function_call;
 (dal 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
Informazioni sull'immagine

Inheritance diagram

Indice

[modifica] Membri funzioni

(costruttore)
 bad_function_call()
(metodo pubblico)

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
  (dal C++11)

Inherited from std::exception

Member functions

[virtuale]
distrugge l'oggetto eccezione
Original:
destructs the exception object
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(metodo pubblico virtuale) [modifica]
[virtuale]
restituisce una stringa esplicativa
Original:
returns an explanatory string
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(metodo pubblico virtuale) [modifica]

[modifica] Esempio

#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

[modifica] Vedi anche

(C++11)
avvolge oggetto invocabile di qualsiasi tipo con la firma specificato chiamata di funzione
Original:
wraps callable object of any type with specified function call signature
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(classe template) [modifica]
Estratto da "https://it.cppreference.com/mwiki/index.php?title=cpp/utility/functional/bad_function_call&oldid=27143"