std::moneypunct::decimal_point, do_decimal_point
From cppreference.com
< cpplrm; | localelrm; | moneypunct
| Defined in header <locale>
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| public: CharT decimal_point() const; |
(1) | |
| protected: virtual CharT do_decimal_point() const; |
(2) | |
1) Public member function, calls the member function
do_decimal_point of the most derived class.2) Returns the character to use as the decimal point separator in monetary I/O if the format uses fractions (that is, if do_frac_digits() is greater than zero). For typical U.S. locales, it is the character '.' (or L'.')
Return value
The object of type CharT holding the decimal point character.
Example
Run this code
#include <iostream> #include <iomanip> #include <locale> void show_dpt(const char* locname) { std::locale loc(locname); std::cout.imbue(loc); std::cout << locname << " decimal point is '" << std::use_facet<std::moneypunct<char>>(loc).decimal_point() << "' for example: " << std::showbase << std::put_money(123); if (std::use_facet<std::moneypunct<char>>(loc).frac_digits() == 0) std::cout << " (does not use frac digits) "; std::cout << '\n'; } int main() { show_dpt("en_US.utf8"); show_dpt("ja_JP.utf8"); show_dpt("sv_SE.utf8"); show_dpt("de_DE.utf8"); }
Output:
en_US.utf8 decimal point is '.' for example: $1.23 ja_JP.utf8 decimal point is '.' for example: 123 (does not use frac digits) sv_SE.utf8 decimal point is ',' for example: 1,23 kr de_DE.utf8 decimal point is ',' for example: 1,23
See also
| [virtual] |
provides the number of digits to display after the decimal point (virtual protected member function) |