NAME¶

std::get_money - std::get_money

Synopsis¶

Defined in header <iomanip>
template< class MoneyT > (since C++11)
/*unspecified*/ get_money( MoneyT& mon, bool intl = false );

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.

The extraction operation in in >> get_money(mon, intl) behaves as a
FormattedInputFunction.

Parameters¶

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

Return value¶

An object of unspecified type such that

* if in is an object of type std::basic_istream<CharT, Traits>, the expression in
>> get_money(mon, intl)
* has type std::basic_istream<CharT, Traits>&
* has value in
* behaves as if it called f(in, mon, intl)

where the function f is defined as:

template<class CharT, class Traits, class MoneyT>
void f(std::basic_ios<CharT, Traits>& str, MoneyT& mon, bool intl)
{
using Iter = std::istreambuf_iterator<CharT, Traits>;
using MoneyGet = std::money_get<CharT, Iter>;

std::ios_base::iostate err = std::ios_base::goodbit;
const MoneyGet& mg = std::use_facet<MoneyGet>(str.getloc());

mg.get(Iter(str.rdbuf()), Iter(), intl, str, err, mon);

if (err != std::ios_base::goodbit)
str.setstate(err);
}

Example¶

// Run this code

#include <iomanip>
#include <iostream>
#include <locale>
#include <sstream>

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);

if (in)
std::cout << std::quoted(in.str()) << " parsed as: "
<< v1 << ", " << v2 << ", " << v3 << '\n';
else
std::cout << "Parse failed";
}

Output:¶

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

See also¶

money_get parses and constructs a monetary value from an input character sequence
(class template)
put_money formats and outputs a monetary value
(C++11) (function template)