std::money_put

C++

Language

Headers

Freestanding and hosted implementations

Named requirements

Language support library

Concepts library (C++20)

Diagnostics library

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Filesystem library (C++17)

Technical Specifications

Localizations library

Locales and facets
locale
use_facet	has_facet
Character classification
isspace isblank (C++11) iscntrl isupper islower isalpha	isdigit ispunct isxdigit isalnum isprint isgraph
Conversions
toupper tolower	wstring_convert (C++11) wbuffer_convert (C++11)
Facet category base classes
ctype_base codecvt_base messages_base	time_base money_base
Facet categories
ctype ctype<char> codecvt collate messages time_get time_put	num_get num_put numpunct money_get money_put moneypunct
Locale-specific facets
ctype_byname codecvt_byname messages_byname collate_byname	time_get_byname time_put_byname numpunct_byname moneypunct_byname
Code conversion facets
codecvt_utf8 (C++11) codecvt_utf16 (C++11)	codecvt_utf8_utf16 (C++11) codecvt_mode (C++11)
C locale
setlocale localeconv lconv	LC_ALLLC_COLLATELC_CTYPELC_MONETARYLC_NUMERICLC_TIME

std::money_put

Member functions

money_put::money_put

money_put::~money_put

money_put::putmoney_put::do_put

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.

Inheritance diagram

Type requirements

- OutputIt must meet the requirements of OutputIterator.

Specializations

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

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
std::money_put<char, OutputIt>	creates narrow string representations of monetary values using custom output iterator
std::money_put<wchar_t, OutputIt>	creates wide string representations of monetary values using custom output iterator

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

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)
(destructor)	destructs a money_put facet (protected member function)
put	invokes do_put (public member function)

Protected member functions

do_put [virtual]

formats a monetary value and writes to output stream (virtual protected member function)

Member objects

static std::locale::id id

id of the locale (public member object)

Example

Run this code

#include <iostream>
#include <locale>
#include <iomanip>
#include <iterator>
int main()
{
    // using the IO 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 

See also

moneypunct	defines monetary formatting parameters used by std::money_get and std::money_put (class template)
money_get	parses and constructs a monetary value from an input character sequence (class template)
put_money (C++11)	formats and outputs a monetary value (function template)