85 lines
2.5 KiB
C
85 lines
2.5 KiB
C
/* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
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This file is part of GNU Fortran libU77 library.
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This library is free software; you can redistribute it and/or modify it
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under the terms of the GNU Library General Public License as published
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by the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GNU Fortran is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with GNU Fortran; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#if TIME_WITH_SYS_TIME
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# include <sys/time.h>
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# include <time.h>
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#else
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# if HAVE_SYS_TIME_H
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# include <sys/time.h>
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# else
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# include <time.h>
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# endif
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#endif
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#include "f2c.h"
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#ifdef KR_headers
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VOID s_copy ();
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#else
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void s_copy(register char *a, register char *b, ftnlen la, ftnlen lb);
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#endif
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int G77_date_and_time_0 (char *date, char *fftime, char *zone,
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integer *values, ftnlen date_len,
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ftnlen fftime_len, ftnlen zone_len)
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{
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time_t lt=time(<);
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struct tm ltime = *localtime(<), gtime = *gmtime(<);
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char dat[9], zon[6], ftim[11];
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int i, vals[8];
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vals[0] = 1900 + ltime.tm_year;
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vals[1] = 1 + ltime.tm_mon;
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vals[2] = ltime.tm_mday;
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/* fixme: year boundaries */
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vals[3] = (ltime.tm_min - gtime.tm_min +
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60*(ltime.tm_hour - gtime.tm_hour +
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24*(ltime.tm_yday -gtime.tm_yday)));
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vals[4] = ltime.tm_hour;
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vals[5] = ltime.tm_min;
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vals[6] = ltime.tm_sec;
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vals[7] = 0; /* no STDC way to get this */
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/* GNUish way; maybe use `ftime' on other systems. */
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#if HAVE_GETTIMEOFDAY
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{
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struct timeval tp;
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struct timezone tzp;
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if (! gettimeofday (&tp, &tzp))
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vals[7] = tp.tv_usec/1000;
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}
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#endif
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if (values) /* null pointer for missing optional */
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for (i=0; i<=7; i++)
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values[i] = vals[i];
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sprintf (dat, "%04d%02d%02d", vals[0], vals[1], vals[2]);
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s_copy(date, dat, date_len, 8);
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if (zone) {
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sprintf(zon, "%+03d%02d", vals[3] / 60, abs(vals[3] % 60));
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s_copy(zone, zon, zone_len, 5);
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}
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if (fftime) {
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sprintf (ftim, "%02d%02d%02d.%03d", vals[4], vals[5], vals[6], vals[7]);
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s_copy(fftime, ftim, fftime_len, 10);
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}
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return 0;
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}
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