std::function::operator bool

 

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plus minus negate multiplies divides modulus logical_and logical_or logical_not	equal_to not_equal_to greater less greater_equal less_equal bit_and bit_or bit_xor
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explicit operator bool()const;		(seit C++11)

Überprüft, ob *this eine aufrufbare Funktion Target Stores, dh nicht leer .

Original:

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

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Parameter

(None)

Original:

(none)

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Rückgabewert

true wenn *this speichert eine aufrufbare Funktion Ziel false sonst .

Original:

true if *this stores a callable function target, false otherwise.

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Ausnahmen

noexcept specification:  

noexcept

  (seit C++11)