std::money_put(3)

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)