# std::moneypunct

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< cpp‎ | locale

Defined in header `<locale>` |  |
template< class CharT, bool International = false > class moneypunct; |  |

The facet std::moneypunct encapsulates monetary value format preferences. Stream I/O manipulators std::get_money and std::put_money use std::moneypunct through std::money_get and std::money_put for parsing monetary value input and formatting monetary value output.

Inheritance diagram

Four standalone (locale-independent) specializations are provided by the standard library:

Defined in header `<locale>`
std::moneypunct<char> | provides equivalents of the "C" locale preferences
std::moneypunct<wchar_t> | provides wide character equivalents of the "C" locale preferences
std::moneypunct<char, true> | provides equivalents of the "C" locale preferences, with international currency symbols
std::moneypunct<wchar_t, true> | provides wide character equivalents of the "C" locale preferences, with international currency symbols

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>

### Member functions

(constructor) | constructs a new moneypunct facet (public member function)
(destructor) | destructs a moneypunct facet (protected member function)
decimal_point | invokes `do_decimal_point` (public member function)
thousands_sep | invokes `do_thousands_sep` (public member function)
grouping | invokes `do_grouping` (public member function)
curr_symbol | invokes `do_curr_symbol` (public member function)
positive_sign negative_sign | invokes `do_positive_sign` or `do_negative_sign` (public member function)
frac_digits | invokes `do_frac_digits` (public member function)
pos_format neg_format | invokes `do_pos_format`/`do_neg_format` (public member function)

### Protected member functions

do_decimal_point [virtual] | provides the character to use as decimal point (virtual protected member function)
do_thousands_sep [virtual] | provides the character to use as thousands separator (virtual protected member function)
do_grouping [virtual] | provides the numbers of digits between each pair of thousands separators (virtual protected member function)
do_curr_symbol [virtual] | provides the string to use as the currency identifier (virtual protected member function)
do_positive_sign do_negative_sign [virtual] | provides the string to indicate a positive or negative value (virtual protected member function)
do_frac_digits [virtual] | provides the number of digits to display after the decimal point (virtual protected member function)
do_pos_format do_neg_format [virtual] | provides the formatting pattern for currency values (virtual protected member function)

### Member constants

Member | Definition
const bool `intl` (static) | `International`

### Member objects

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

## Inherited from std::money_base

Member type | Definition
enum part { none, space, symbol, sign, value }; | unscoped enumeration type
struct pattern { char field[4]; }; | the monetary format type

Enumeration constant | Definition
`none` | whitespace is permitted but not required except in the last position, where whitespace is not permitted
`space` | one or more whitespace characters are required
`symbol` | the sequence of characters returned by moneypunct::curr_symbol is required
`sign` | the first of the characters returned by moneypunct::positive_sign or moneypunct::negative_sign is required
`value` | the absolute numeric monetary value is required

### See also

money_base | defines monetary formatting patterns (class)
moneypunct_byname | represents the system-supplied std::moneypunct for the named locale (class template)
money_get | parses and constructs a monetary value from an input character sequence (class template)
money_put | formats a monetary value for output as a character sequence (class template)

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