std::bad_function_call
From cppreference.com
< cpp | utility | functional
| Defined in header <functional>
|
||
| class bad_function_call; |
(since C++11) | |
std::bad_function_call is the type of the exception thrown by std::function::operator() if the function wrapper has no target.
Contents |
[edit] Member functions
| (constructor) |
bad_function_call() (public member function) |
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
Inherited from std::exception
Member functions
| [virtual] |
destructs the exception object (virtual public member function of std::exception)
|
| [virtual] |
returns an explanatory string (virtual public member function of std::exception)
|
[edit] Example
Run this code
#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'; } }
Possible output:
bad function call
[edit] See also
| (C++11) |
wraps callable object of any type with specified function call signature (class template) |
