1 /* Copyright (C) 1996, 1998 Free Software Foundation, Inc.
2 This file is part of GNU Fortran libU77 library.
4 This library is free software; you can redistribute it and/or modify it
5 under the terms of the GNU Library General Public License as published
6 by the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 GNU Fortran is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with GNU Fortran; see the file COPYING.LIB. If
16 not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
22 #if TIME_WITH_SYS_TIME
23 # include <sys/time.h>
27 # include <sys/time.h>
33 # include <sys/times.h>
39 #include <errno.h> /* for ENOSYS */
43 int G77_system_clock_0 (count, count_rate, count_max)
44 integer *count, *count_rate, *count_max;
46 int G77_system_clock_0 (integer *count, integer *count_rate, integer *count_max)
49 #if defined (HAVE_TIMES)
54 *count_rate = sysconf(_SC_CLK_TCK);
55 #elif defined CLOCKS_PER_SECOND
56 *count_rate = CLOCKS_PER_SECOND;
58 *count_rate = CLK_TCK;
62 #error Dont know clock tick length
65 if (count_max) /* optional arg present? */
66 *count_max = INT_MAX; /* dubious */
67 cnt = times (&buffer);
68 if (cnt > (unsigned long) (INT_MAX))
69 *count = INT_MAX; /* also dubious */
73 #else /* ! HAVE_TIMES */
76 #endif /* ! HAVE_TIMES */