Defined in header <locale> | ||
---|---|---|
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
#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) |
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