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// file : tests/basic/driver.cpp
// license : Unicode License; see accompanying LICENSE file
#include <string>
#include <memory> // unique_ptr
#include <cassert>
#include <iostream>
#include <stdexcept> // runtime_error
#include <unicode/utypes.h>
#include <unicode/uclean.h>
#include <unicode/datefmt.h>
#include <unicode/calendar.h>
#include <unicode/timezone.h>
#include <unicode/bytestream.h>
// Usage: argv[0] <locale>
//
// Print the full 01/01/2020 00:00 time in Berlin's timezone using the
// specified locale.
//
int
main (int argc, char* argv[])
{
using namespace std;
using namespace icu;
assert (argc == 2);
const char* locale (argv[1]);
UErrorCode e (U_ZERO_ERROR);
auto validate = [&e] (const char* what)
{
if (U_FAILURE (e))
throw runtime_error (string (what) + " failed: " + u_errorName (e));
};
int r (0);
try
{
unique_ptr<Calendar> cal (Calendar::createInstance (e));
validate ("Calendar::createInstance()");
cal->adoptTimeZone (TimeZone::createTimeZone ("Europe/Berlin"));
cal->clear ();
cal->set (2020, Calendar::JANUARY, 1);
UDate date (cal->getTime (e));
validate ("Calendar::getTime()");
unique_ptr<DateFormat> fmt (
DateFormat::createDateTimeInstance (DateFormat::kFull,
DateFormat::kFull,
locale));
fmt->setCalendar (*cal);
UnicodeString us;
fmt->format(date, us, e);
validate ("DateFormat::format()");
string s;
StringByteSink<string> bs (&s);
us.toUTF8 (bs);
cout << s << endl;
}
catch (const runtime_error& e)
{
cerr << e.what () << endl;
r = 1;
}
// Free any heap storage that has been potentially allocated and held by the
// ICU library.
//
u_cleanup ();
return r;
}
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