Namespace
Varianti

std::negate

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< cpp‎ | utility‎ | functional

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Negatori
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Negators
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Elemento definito nell'header <functional>
template< class T >
struct negate;
Oggetto funzione per l'esecuzione di negazione. Invita efficace operator- in un'istanza di T tipo.
Original:
Function object for performing negation. Effectively calls operator- on an instance of type T.
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Indice

[modifica] Membri tipi

Tipo
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Type
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 Definition
result_type T
argument_type T

[modifica] Membri funzioni

operator()
restituisce la negazione della tesi
Original:
returns the negation of the argument
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(metodo pubblico)

std :: negare ::
Original:
std::negate::
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operator()

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

Returns the negation of arg.

Parameters

arg -
valore per calcolare negazione
Original:
value to compute negation of
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Return value

The result of -arg.

Exceptions

(none)

Possible implementation

T operator()(const T &arg) const 
{
    return -arg;
}
Estratto da "https://it.cppreference.com/mwiki/index.php?title=cpp/utility/functional/negate&oldid=27180"