std::copyable_function::operator bool

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Old binders and adaptors
(until C++17*)
(until C++17*)
(until C++17*)
(until C++17*)
(until C++17*)  
(until C++17*)
(until C++17*) (until C++17*) (until C++17*) (until C++17*)
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(until C++17*)(until C++17*)
(until C++17*)(until C++17*)

(until C++17*)
(until C++17*) (until C++17*) (until C++17*) (until C++17*)
(until C++20*)
(until C++20*)
std::copyable_function
explicit operator bool ( ) const noexcept ;
(since C++26)

Checks whether *this stores a callable target, i.e. is not empty.

Parameters

(none)

Return value

true if *this stores a callable target, false

Example

This section is incomplete
Reason: no example

See also

(C++26)
 compares a std::copyable_function with nullptr
(function)
checks if a target is contained
(public member function of std::function<R(Args...)>)
checks if the std::move_only_function has a target
(public member function of std::move_only_function)
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