std::moneypunct<CharT,International>::pos_format, do_pos_format, neg_format, do_neg_format

 

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Locales and facets   Locales has_facet use_facet locale Facet category base classes ctype_base codecvt_base messages_base time_base money_base ctype facets ctype ctype<char> ctype_byname codecvt codecvt_byname numeric facets num_get num_put numpunct numpunct_byname collate facets collate collate_byname time facets time_get time_put time_get_byname time_put_byname

monetary facets money_get money_put moneypunct moneypunct_byname messages facets messages messages_byname Character classification and conversion Character classification isspace    iscntrl isupper islower    isalpha ispunct isdigit    isxdigit isalnum isblank (C++11) isprint isgraph Character conversions toupper    tolower String and stream conversions wstring_convert (C++11/17/26*) wbuffer_convert (C++11/17/26*) Unicode conversion facets codecvt_utf8 (C++11/17/26*) codecvt_utf16 (C++11/17/26*) codecvt_utf8_utf16 (C++11/17/26*) codecvt_mode (C++11/17/26*) C library locales LC_ALLLC_COLLATELC_CTYPELC_MONETARYLC_NUMERICLC_TIME    setlocale localeconv lconv

 

std::moneypunct

Member functions

moneypunct::moneypunct

moneypunct::~moneypunct

moneypunct::decimal_pointmoneypunct::do_decimal_point

moneypunct::thousands_sepmoneypunct::do_thousands_sep

moneypunct::groupingmoneypunct::do_grouping

moneypunct::curr_symbolmoneypunct::do_curr_symbol

moneypunct::frac_digitsmoneypunct::do_frac_digits

moneypunct::positive_signmoneypunct::do_positive_signmoneypunct::negative_signmoneypunct::do_negative_sign

moneypunct::pos_formatmoneypunct::do_pos_formatmoneypunct::neg_formatmoneypunct::do_neg_format

 

Defined in header <locale>
public: pattern pos_format() const;	(1)
public: pattern neg_format() const;	(2)
protected: virtual pattern do_pos_format() const;	(3)
protected: virtual pattern do_neg_format() const;	(4)

1) Public member function, calls the member function do_pos_format of the most derived class.

2) Public member function, calls the member function do_neg_format of the most derived class.

3) Returns the format structure (of type std::money_base::format) which describes the formatting of positive monetary values.

4) Returns the format structure (of type std::money_base::format) which describes the formatting of negative monetary values.

The standard specializations of std::moneypunct return the pattern {symbol, sign, none, value}.

Return value

The object of type std::money_base::format describing the formatting used by this locale.

Notes

While std::money_put uses pos_format for formatting positive values and neg_format for formatting negative values, std::money_get uses neg_format for parsing all monetary values: it assumes that neg_format is compatible with pos_format.

Example

Run this code

#include <iomanip>
#include <iostream>
#include <locale>
 
struct my_punct : std::moneypunct_byname<char, false>
{
    my_punct(const char* name) : moneypunct_byname(name) {}
    pattern do_pos_format() const { return {value, space, symbol, sign}; }
    pattern do_neg_format() const { return {value, space, symbol, sign}; }
};
 
int main()
{
    std::cout.imbue(std::locale("en_US.utf8"));
    std::cout << "american locale: " << std::showbase
              << std::put_money(12345678.0) << '\n';
 
    std::cout.imbue(std::locale(std::cout.getloc(), new my_punct("en_US.utf8")));
    std::cout << "locale with modified moneypunct:\n"
              << std::put_money(12345678.0) << '\n'
              << std::put_money(-12345678.0) << '\n';
}

Output:

american locale: $123,456.78
locale with modified moneypunct:
123,456.78 $
123,456.78 $-

See also

do_curr_symbol [virtual]	provides the string to use as the currency identifier (virtual protected member function)
do_positive_signdo_negative_sign [virtual]	provides the string to indicate a positive or negative value (virtual protected member function)
do_get [virtual]	parses a monetary value from an input stream (virtual protected member function of std::money_get<CharT,InputIt>)
do_put [virtual]	formats a monetary value and writes to output stream (virtual protected member function of std::money_put<CharT,OutputIt>)