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std::bad_function_call

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< cpp‎ | utility‎ | functional

 
 
 
Function-Objekte
Funktionswrapper
function(C++11)
mem_fn(C++11)
bad_function_call(C++11)
Bindung
bind(C++11)
is_bind_expression(C++11)
is_placeholder(C++11)
_1, _2, _3, ...(C++11)
Referenzwrapper
reference_wrapper(C++11)
ref
cref
(C++11)
(C++11)
Operatorwrapper
Verneinung
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unary_function(veraltet)
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ptr_fun(veraltet)
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pointer_to_binary_function(veraltet)
mem_fun(veraltet)
mem_fun_t
mem_fun1_t
const_mem_fun_t
const_mem_fun1_t
(veraltet)
(veraltet)
(veraltet)
(veraltet)
mem_fun_ref(veraltet)
mem_fun_ref_t
mem_fun1_ref_t
const_mem_fun_ref_t
const_mem_fun1_ref_t
(veraltet)
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Defined in header <functional>
class bad_function_call;
(seit 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
Über dieses Bild

Inheritance diagram

Inhaltsverzeichnis

[Bearbeiten] Member-Funktionen

(constructor)
bad_function_call()
(öffentliche Elementfunktion)

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
  (seit C++11)

Inherited from std::exception

Member functions

[virtuell]
zerstört sich die Ausnahme-Objekt
Original:
destructs the exception object
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(virtuellen öffentlichen Member-Funktion of std::exception) [edit]
[virtuell]
gibt einen erläuternden String
Original:
returns an explanatory string
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(virtuellen öffentlichen Member-Funktion of std::exception) [edit]

[Bearbeiten] Beispiel

#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

[Bearbeiten] Siehe auch

(C++11)
wickelt aufrufbare Objekt eines beliebigen Typs mit dem angegebenen Funktion Call-Signatur
Original:
wraps callable object of any type with specified function call signature
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(Klassen-Template) [edit]