NAME¶

std::moneypunct::pos_format,do_pos_format,neg_format,do_neg_format - std::moneypunct::pos_format,do_pos_format,neg_format,do_neg_format

Synopsis¶

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

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

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