Namespace
Varianti

std::get_money

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< cpp‎ | io‎ | manip

 
 
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C-style I / O
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Streams
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Array I/O
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Ingresso / uscita manipolatori
Virgola mobile formattazione
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Formattazione Integer
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boolalpha
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Tempo e denaro I / O
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Time and money I/O
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get_money(C++11)
get_time(C++11)
put_money(C++11)
put_time(C++11)
 
Defined in header <iomanip>
template< class MoneyT >
/*unspecified*/ get_money( MoneyT& mon, bool intl = false );
(dal C++11)

When used in an expression in >> get_money(mon, intl), parses the character input as a monetary value, as specified by the std::money_get facet of the locale currently imbued in in, and stores the value in mon.

This function behaves as a formatted input function.

Indice

[modifica] Parametri

mon - variable where monetary value will be written. Can be either long double or basic_string
intl - expects to find required international currency strings if true, expects optional currency symbols otherwise

[modifica] Valore di ritorno

Restituisce un oggetto di tipo tale che, se non specificato in è il nome di un flusso di uscita di tipo std::basic_istream<CharT, Traits>, allora l'espressione in >> get_money(mon, intl) comporta come se il codice è stato eseguito il seguente:
Original:
Returns an object of unspecified type such that if in is the name of an output stream of type std::basic_istream<CharT, Traits>, then the expression in >> get_money(mon, intl) behaves as if the following code was executed:
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typedef std::istreambuf_iterator<CharT, Traits> Iter;
typedef std::money_get<CharT, Iter> MoneyGet;
std::ios_base::iostate err = std::ios_base::goodbit;
const MoneyGet &mg = std::use_facet<MoneyGet>(in.getloc());
mg.get(Iter(in.rdbuf()), Iter(), intl, in, err, mon);
if (std::ios_base::goodbit != err)
    out.setstate(err);

[modifica] Esempio

#include <iostream>
#include <sstream>
#include <locale>
#include <iomanip>
int main()
{
    std::istringstream in("$1,234.56 2.22 USD  3.33");
    long double v1, v2;
    std::string v3;
    in.imbue(std::locale("en_US.UTF-8"));
    in >> std::get_money(v1) >> std::get_money(v2) >> std::get_money(v3, true);
 
    std::cout << '"' << in.str() << "\" parsed as: "
              << v1 << ", " << v2 << ", " << v3 << '\n';
}

Output:

"$1,234.56 2.22 USD  3.33" parsed as: 123456, 222, 333

[modifica] Vedi anche

analizza e costruisce un valore monetario da una sequenza di caratteri di input
Original:
parses and constructs a monetary value from an input character sequence
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(classe template) [edit]
(C++11)
i formati e le uscite di un valore monetario
Original:
formats and outputs a monetary value
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(funzione di modello) [edit]