NAME¶

std::money_put - std::money_put

Synopsis¶

Defined in header <locale>
template<

class CharT,
class OutputIt = std::ostreambuf_iterator<CharT>

> class money_put;

Class std::money_put encapsulates the rules for formatting monetary values as
strings. The standard I/O manipulator std::put_money uses the std::money_put facet
of the I/O stream's locale.

std-money put-inheritance.svg

Inheritance diagram

If a std::money_put specialization is not guaranteed to be provided by the standard
library (see below), the behaviors of its put() and do_put() are not guaranteed as
specified.

Specializations¶

The standard library is guaranteed to provide the following specializations (they
are required to be implemented by any locale object):

Defined in header <locale>
std::money_put<char> creates narrow string representations of monetary values
std::money_put<wchar_t> creates wide string representations of monetary values

In addition, the standard library is also guaranteed to provide every specialization
that satisfies the following type requirements:

* CharT is one of
* char,
* wchar_t, and
* any other implementation-defined character container type that meets the
requirements for a character on which any of the iostream components can be
instantiated; and
* OutputIt must meet the requirements of LegacyOutputIterator.

Member types¶

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

Member functions¶

constructor constructs a new money_put facet
(public member function)
put invokes do_put
(public member function)

Protected member functions¶

destructor destructs a money_put facet
(protected member function)
do_put formats a monetary value and writes to output stream
[virtual] (virtual protected member function)

Member objects¶

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

Example¶

// Run this code

#include <iomanip>
#include <iostream>
#include <iterator>
#include <locale>

int main()
{
// using the I/O manipulator
std::cout.imbue(std::locale("en_US.UTF-8"));
std::cout << "American locale: "
<< std::showbase << std::put_money(12345678.9) << '\n';

// using the facet directly
std::cout.imbue(std::locale("de_DE.UTF-8"));
std::cout << "German locale: ";
auto& f = std::use_facet<std::money_put<char>>(std::cout.getloc());
f.put({std::cout}, false, std::cout, std::cout.fill(), 12345678.9);
std::cout << '\n';
}

Output:¶

American locale: $123,456.79
German locale: 123.456,79 €

Defect reports

The following behavior-changing defect reports were applied retroactively to
previously published C++ standards.

DR Applied to Behavior as published Correct behavior
money_put was guaranteed to accept only guarantees to accept
any CharT that char,
LWG 427 C++98 meets the requirements for a wchar_t and other
character on which implementation-
any of the iostream components can defined character types
be instantiated
only character type CharT could be can guarantee to accept
LWG 2392 C++98 guaranteed to be accepted by implementation-
money_put defined character container
types

See also¶

defines monetary formatting parameters used by std::money_get and
moneypunct std::money_put
(class template)
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)