public member function
<locale>
string_type positive_sign() const;
Return positive sign string
Returns the string used to represent the indicate a monetary value is positive.
Internally, this function simply calls the virtual protected member do_positive_sign, which for the standard specializations returns the proper string.
Return value
The string used to represent the positive sign, if any (or an empty string).
Member type string_type is a basic_string type with the same character type as the facet (defined as an alias of basic_string<charT>, where charT is moneypunct's first template parameter).
Example
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// moneypunct example
#include <iostream> // std::cout
#include <locale> // std::locale, std::moneypunct, std::use_facet
// overload inserter to print patterns:
std::ostream& operator<< (std::ostream& os, std::moneypunct<char>::pattern p)
{
for (int i=0; i<4; i++)
switch (p.field[i]) {
case std::moneypunct<char>::none: std::cout << "none "; break;
case std::moneypunct<char>::space: std::cout << "space "; break;
case std::moneypunct<char>::symbol: std::cout << "symbol "; break;
case std::moneypunct<char>::sign: std::cout << "sign "; break;
case std::moneypunct<char>::value: std::cout << "value "; break;
}
return os;
}
int main ()
{
std::locale mylocale;
const std::moneypunct<char>& mp = std::use_facet<std::moneypunct<char> >(mylocale);
std::cout << "moneypunct in locale \"" << mylocale.name() << "\":\n";
std::cout << "decimal_point: " << mp.decimal_point() << '\n';
std::cout << "thousands_sep: " << mp.thousands_sep() << '\n';
std::cout << "grouping: " << mp.grouping() << '\n';
std::cout << "curr_symbol: " << mp.curr_symbol() << '\n';
std::cout << "positive_sign: " << mp.positive_sign() << '\n';
std::cout << "negative_sign: " << mp.negative_sign() << '\n';
std::cout << "frac_digits: " << mp.frac_digits() << '\n';
std::cout << "pos_format: " << mp.pos_format() << '\n';
std::cout << "neg_format: " << mp.neg_format() << '\n';
return 0;
}
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Possible output:
moneypunct in locale "C":
decimal_point:
thousands_sep:
grouping:
curr_symbol:
positive_sign:
negative_sign: -
frac_digits: 0
pos_format: symbol sign none value
neg_format: symbol sign none value
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Data races
The facet is accessed.
Exception safety
Strong guarantee: No side effects in case an exception is thrown.