tmweek.c revision 7c2fbfb345896881c631598ee3852ce9ce33fb07
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin/***********************************************************************
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* This software is part of the ast package *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin* Copyright (c) 1985-2008 AT&T Intellectual Property *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* and is licensed under the *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Common Public License, Version 1.0 *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin* by AT&T Intellectual Property *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* A copy of the License is available at *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Information and Software Systems Research *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* AT&T Research *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Florham Park NJ *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Glenn Fowler <gsf@research.att.com> *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* David Korn <dgk@research.att.com> *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Phong Vo <kpv@research.att.com> *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin***********************************************************************/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Glenn Fowler
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * AT&T Research
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Time_t conversion support
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * type is week type
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * 0 sunday first day of week
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * 1 monday first day of week
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * 2 monday first day of iso week
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * if week<0 then return week for tm
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * if day<0 then set tm to first day of week
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * otherwise set tm to day in week
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * and return tm->tm_yday
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin week = (day > 0 && day < 6 || tmisleapyear(tm->tm_year - 1)) ? 53 : 52;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else if (week == 53 && (tm->tm_wday + (31 - tm->tm_mday)) < 4)