113 lines
3.7 KiB
C++
113 lines
3.7 KiB
C++
/**************************************************************************
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*
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* timeget.cpp - Example program for the time_get facet.
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*
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* $Id: time_get.cpp 550991 2007-06-26 23:58:07Z sebor $
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*
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***************************************************************************
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*
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* Copyright 1994-2006 Rogue Wave Software.
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*
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**************************************************************************/
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// NOTE: A SunPro bug requires time.h preceed locale. PR #26255
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#include <ctime> // for struct tm
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#include <locale> // for locale, time_get
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#include <sstream> // for stringstream
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#include <iostream> // for cout, endl
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// Print out a tm struct value in one atomic operation
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std::ostream& operator<< (std::ostream &os, const std::tm &t)
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{
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std::stringstream strm;
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strm << "Daylight Savings = " << t.tm_isdst
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<< "\nDay of year = " << t.tm_yday
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<< "\nDay of week = " << t.tm_wday
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<< "\nYear = " << t.tm_year
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<< "\nMonth = " << t.tm_mon
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<< "\nDay of month = " << t.tm_mday
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<< "\nHour = " << t.tm_hour
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<< "\nMinute = " << t.tm_min
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<< "\nSecond = " << t.tm_sec
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<< '\n';
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// guard for thread safety and output synchronization
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const std::ostream::sentry guard (os);
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if (guard)
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os.rdbuf ()->sputn (strm.str ().c_str (), strm.str ().size ());
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else
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os.setstate (os.failbit);
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return os;
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}
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int main ()
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{
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typedef std::istreambuf_iterator<char, std::char_traits<char> > Iter;
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// time struct to parse date into
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static std::tm timeb; // zero initialized
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// Unused, required by time_get
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std::ios_base::iostate state;
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// Stream object to read from
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std::istringstream ins ("");
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// Iterators into the stream object
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Iter begin (ins);
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Iter end;
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const std::locale loc ("C");
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// Get a reference to the time_get facet in locale loc.
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const std::time_get<char, Iter> &tg =
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std::use_facet<std::time_get<char, Iter> >(loc);
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// Display time_base::dateorder value.
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std::cout << "time_base::dateorder == " << tg.date_order () << ".\n";
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// Insert date string into stream.
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ins.str ("04/07/69");
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// get_date from the stream and output tm contents.
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tg.get_date (begin, end, ins, state, &timeb);
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std::cout << "Date: Apr 7 1969\n" << timeb << std::endl;
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// Insert weekday string into stream.
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ins.str ("Monday");
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// get_weekday from the stream and output tm contents.
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tg.get_weekday (begin, end, ins, state, &timeb);
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std::cout << "Weekday: Monday\n" << timeb << std::endl;
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// Insert time string into stream.
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ins.str ("06:47:32");
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// get_time from the stream and output tm contents.
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tg.get_time (begin, end, ins, state, &timeb);
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std::cout << "Time: 06:47:32\n" << timeb << std::endl;
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return 0;
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}
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