std::time_get<CharT,InputIt>::date_order, std::time_get<CharT,InputIt>::do_date_order

Header: <locale>

  1. Public member function, calls the protected virtual member function do_date_order of the most derived class.

# Declarations

public:
dateorder date_order() const;

protected:
virtual dateorder do_date_order() const;

# Return value

A value of type dateorder.

# Notes

This function is optional, it may return no_order in every case.

# Example

#include <iostream>
#include <locale>
 
void show_date_order()
{
    std::time_base::dateorder d = std::use_facet<std::time_get<char>>(
                                      std::locale()
                                  ).date_order();
    switch (d)
    {
        case std::time_base::no_order:
            std::cout << "no_order\n";
            break;
        case std::time_base::dmy:
            std::cout << "day, month, year\n";
            break;
        case std::time_base::mdy:
            std::cout << "month, day, year\n";
            break;
        case std::time_base::ymd:
            std::cout << "year, month, day\n";
            break;
        case std::time_base::ydm:
            std::cout << "year, day, month\n";
            break;
    }
}
 
int main()
{
    std::locale::global(std::locale("en_US.utf8"));
    std::cout << "In U.S. locale, the default date order is: ";
    show_date_order();
 
    std::locale::global(std::locale("ja_JP.utf8"));
    std::cout << "In Japanese locale, the default date order is: ";
    show_date_order();
 
    std::locale::global(std::locale("de_DE.utf8"));
    std::cout << "In German locale, the default date order is: ";
    show_date_order();
}

# See also