144 lines
3.2 KiB
C
144 lines
3.2 KiB
C
/*
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Copyright 1996, 1997, 1998, 2000, 2001 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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*/
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#include <stdio.h>
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#include "gmp.h"
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#include "gmp-impl.h"
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#if defined (USG) || defined (__SVR4) || defined (_UNICOS) || defined (__hpux)
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#include <time.h>
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int
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cputime ()
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{
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if (CLOCKS_PER_SEC < 100000)
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return clock () * 1000 / CLOCKS_PER_SEC;
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return clock () / (CLOCKS_PER_SEC / 1000);
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}
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#else
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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int
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cputime ()
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{
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struct rusage rus;
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getrusage (0, &rus);
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return rus.ru_utime.tv_sec * 1000 + rus.ru_utime.tv_usec / 1000;
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}
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#endif
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#define M * 1000000
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#ifndef CLOCK
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#if defined (__m88k__)
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#define CLOCK 20 M
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#elif defined (__i386__)
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#define CLOCK (16666667)
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#elif defined (__m68k__)
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#define CLOCK (20 M)
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#elif defined (_IBMR2)
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#define CLOCK (25 M)
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#elif defined (__sparc__)
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#define CLOCK (20 M)
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#elif defined (__sun__)
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#define CLOCK (20 M)
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#elif defined (__mips)
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#define CLOCK (40 M)
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#elif defined (__hppa__)
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#define CLOCK (50 M)
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#elif defined (__alpha)
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#define CLOCK (133 M)
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#else
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#error "Don't know CLOCK of your machine"
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#endif
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#endif
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#ifndef OPS
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#define OPS 20000000
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#endif
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#ifndef SIZE
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#define SIZE 100
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#endif
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#ifndef TIMES
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#define TIMES OPS/SIZE
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#else
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#undef OPS
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#define OPS (SIZE*TIMES)
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#endif
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main ()
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{
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mp_limb_t nptr[2 * SIZE];
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mp_limb_t dptr[2 * SIZE];
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mp_limb_t qptr[2 * SIZE];
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mp_limb_t pptr[2 * SIZE + 1];
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mp_limb_t rptr[2 * SIZE];
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mp_size_t nsize, dsize, qsize, rsize, psize;
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int test;
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mp_limb_t qlimb;
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for (test = 0; ; test++)
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{
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printf ("%d\n", test);
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#ifdef RANDOM
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nsize = random () % (2 * SIZE) + 1;
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dsize = random () % nsize + 1;
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#else
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nsize = 2 * SIZE;
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dsize = SIZE;
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#endif
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mpn_random2 (nptr, nsize);
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mpn_random2 (dptr, dsize);
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dptr[dsize - 1] |= (mp_limb_t) 1 << (BITS_PER_MP_LIMB - 1);
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MPN_COPY (rptr, nptr, nsize);
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qlimb = mpn_divrem (qptr, (mp_size_t) 0, rptr, nsize, dptr, dsize);
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rsize = dsize;
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qsize = nsize - dsize;
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qptr[qsize] = qlimb;
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qsize += qlimb;
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if (qsize == 0 || qsize > 2 * SIZE)
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{
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continue; /* bogus */
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}
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else
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{
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mp_limb_t cy;
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if (qsize > dsize)
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mpn_mul (pptr, qptr, qsize, dptr, dsize);
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else
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mpn_mul (pptr, dptr, dsize, qptr, qsize);
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psize = qsize + dsize;
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psize -= pptr[psize - 1] == 0;
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cy = mpn_add (pptr, pptr, psize, rptr, rsize);
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pptr[psize] = cy;
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psize += cy;
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}
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if (nsize != psize || mpn_cmp (nptr, pptr, nsize) != 0)
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abort ();
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}
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}
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