The following code example is taken from the book
The C++ Standard Library - A Tutorial and Reference, 2nd Edition
by Nicolai M. Josuttis, Addison Wesley Longman, 2012
Copyright © 2012 by Pearson Education, Inc. and Nicolai M. Josuttis
#include <locale>
#include <ctime>
#include <iterator>
#include <iostream>
#include <string>
#include <exception>
#include <cstdlib>
using namespace std;
int main ()
{
try {
// use German locale:
#ifdef _MSC_VER
locale locG("deu_deu.1252");
#else
locale locG("de_DE.ISO-8859-1");
#endif
const time_get<char>& tgG = use_facet<time_get<char>>(locG);
// print date order of German locale:
typedef time_base TB;
time_get<char>::dateorder d = tgG.date_order();
cout << "dateorder: "
<< (d==TB::no_order||d==TB::mdy ? "mdy" :
d==TB::dmy ? "dmy" :
d==TB::ymd ? "ymd" :
d==TB::ydm ? "ydm" : "unknown") << endl;
// read weekday (in German) and time (hh::mm))
cout << "<wochentag> <hh>:<mm>: ";
string format = "%A %H:%M";
struct tm val;
ios_base::iostate err = ios_base::goodbit;
tgG.get (istreambuf_iterator<char>(cin),
istreambuf_iterator<char>(),
cin, err, &val,
format.c_str(), format.c_str()+format.size());
if (err != ios_base::goodbit) {
cerr << "invalid format" << endl;
}
}
catch (const std::exception& e) {
cerr << "Exception: " << e.what() << endl;
return EXIT_FAILURE;
}
}