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std::money_get

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Defined in header <locale>
template<

    class CharT,
    class InputIt = std::istreambuf_iterator<CharT>

> class money_get;

Class template std::money_get encapsulates the rules for parsing monetary values from character streams. The standard I/O manipulator std::get_money uses the std::money_get facet of the I/O stream's locale.

cpp/locale/locale/facetstd-money get-inheritance.svg
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Inheritance diagram

Contents

[edit] Type requirements

-
InputIt must meet the requirements of InputIterator.

[edit] Specializations

Two standalone (locale-independent) full specializations and two partial specializations are provided by the standard library:

Defined in header <locale>
std::money_get<char> parses narrow string representations of monetary values
std::money_get<wchar_t> parses wide string representations of monetary values
std::money_get<char, InputIt> parses narrow string representations of monetary values using custom input iterator
std::money_get<wchar_t, InputIt> parses wide string representations of monetary values using custom input iterator

In addition, every locale object constructed in a C++ program implements its own (locale-specific) versions of these specializations.

[edit] Member types

Member type Definition
char_type CharT
string_type std::basic_string<CharT>
iter_type InputIt

[edit] Member functions

constructs a new money_get facet
(public member function)
destructs a money_get facet
(protected member function)
invokes do_get
(public member function)

[edit] Protected member functions

[virtual]
parses a monetary value from an input stream
(virtual protected member function) [edit]

[edit] Member objects

static std::locale::id id
id of the locale
(public member object)

[edit] Example

#include <iostream>
#include <sstream>
#include <locale>
#include <iomanip>
#include <iterator>
int main()
{
    std::string str = "$1.11 $2.22 $3.33";
    std::cout << std::fixed << std::setprecision(2);
 
    std::cout << '"' << str << "\" parsed with the I/O manipulator: ";
    std::istringstream s1(str);
    s1.imbue(std::locale("en_US.UTF-8"));
    long double val;
    while(s1 >> std::get_money(val))
        std::cout << val/100 << ' ';
    std::cout << '\n';
 
    str = "USD  1,234.56";
    std::cout << '"' << str << "\" parsed with the facet directly: ";
    std::istringstream s2(str);
    s2.imbue(std::locale("en_US.UTF-8"));
    auto& f = std::use_facet<std::money_get<char>>(s2.getloc());
    std::ios_base::iostate err;
    std::istreambuf_iterator<char> beg(s2), end;
    f.get(beg, end, true, s2, err, val);
    std::cout << val/100 << '\n';
}

Output:

"$1.11 $2.22 $3.33" parsed with the I/O manipulator: 1.11 2.22 3.33
"USD  1,234.56" parsed with the facet directly: 1234.56

[edit] See also

defines monetary formatting parameters used by std::money_get and std::money_put
(class template) [edit]
formats a monetary value for output as a character sequence
(class template) [edit]
(C++11)
parses a monetary value
(function template)