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std::bad_function_call

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< cpp‎ | utility‎ | functional

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Bibliothèque d'utilitaires
 
Objets Function
Emballages de fonction
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Function wrappers
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function (C++11)
mem_fn (C++11)
bad_function_call (C++11)
Lier
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Bind
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bind (C++11)
is_bind_expression (C++11)
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Reference wrappers
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Obsolète liants et des adaptateurs
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Deprecated binders and adaptors
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unary_function (obsolète)
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Déclaré dans l'en-tête <functional>
class bad_function_call;
 (depuis 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
À propos de cette image

Inheritance diagram

Sommaire

[modifier] Fonctions membres

(constructeur)
 bad_function_call()
(fonction membre publique)

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
   (depuis C++11)

Inherited from std::exception

Member functions

[
virtuel
Original:
virtual
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]
Détruit l'objet exception
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destructs the exception object
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(function membre virtuelle publique de std::exception) [edit]
[
virtuel
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virtual
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]
retourne une chaîne explicative
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returns an explanatory string
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(function membre virtuelle publique de std::exception) [edit]

[modifier] Exemple

#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';
    }
}

Résultat : 

bad function call

[modifier] Voir aussi

(C++11)
 adaptateur générique de foncteur
(classe générique) [edit]
Récupérée de « https://fr.cppreference.com/mwiki/index.php?title=cpp/utility/functional/bad_function_call&oldid=49708 »