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32 lines
1.0 KiB
C
32 lines
1.0 KiB
C
/* Copyright (C) 1991, 1992, 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sys/times.h>
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#include <time.h>
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/* Return the time used by the program so far (user time + system time). */
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clock_t
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clock ()
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{
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struct tms buf;
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if (__times (&buf) < 0)
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return (clock_t) -1;
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return buf.tms_utime + buf.tms_stime;
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}
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