Namespace
Varianti

std::logical_not

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< cpp‎ | utility‎ | functional

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Elemento definito nell'header <functional>
template< class T >
struct logical_not;
Oggetto funzione per l'esecuzione di logica NOT (negazione logica). Chiede efficace operator! per T tipo.
Original:
Function object for performing logical NOT (logical negation). Effectively calls operator! for type T.
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Indice

[modifica] Membri tipi

Tipo
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Type
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 Definition
result_type bool
argument_type T

[modifica] Membri funzioni

operator()
restituisce il NOT logico dell'argomento
Original:
returns the logical NOT of the argument
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(metodo pubblico)

std :: logical_not ::
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std::logical_not::
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operator()

bool operator()( const T& arg ) const;

Returns the logical NOT of arg.

Parameters

arg -
per calcolare il valore di NOT logico
Original:
value to compute logical NOT of
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Return value

The result of !arg.

Exceptions

(none)

Possible implementation

bool operator()(const T &arg) const 
{
    return !arg;
}
Estratto da "https://it.cppreference.com/mwiki/index.php?title=cpp/utility/functional/logical_not&oldid=27172"