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/*
Copyright 1996-1998, 2000, 2001, 2007, 2009 Free Software Foundation, Inc.
This file is part of the GNU MP Library test suite.
The GNU MP Library test suite is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 3 of the License,
or (at your option) any later version.
The GNU MP Library test suite is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
Public License for more details.
You should have received a copy of the GNU General Public License along with
the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */
#include <stdio.h>
#include <stdlib.h>
#include "gmp.h"
#include "gmp-impl.h"
#if defined (USG) || defined (__SVR4) || defined (_UNICOS) || defined (__hpux)
#include <time.h>
int
cputime ()
{
if (CLOCKS_PER_SEC < 100000)
return clock () * 1000 / CLOCKS_PER_SEC;
return clock () / (CLOCKS_PER_SEC / 1000);
}
#else
#include <sys/types.h>
#include <sys/time.h>
#include <sys/resource.h>
int
cputime ()
{
struct rusage rus;
getrusage (0, &rus);
return rus.ru_utime.tv_sec * 1000 + rus.ru_utime.tv_usec / 1000;
}
#endif
#define M * 1000000
#ifndef CLOCK
#error "Don't know CLOCK of your machine"
#endif
#ifndef OPS
#define OPS 20000000
#endif
#ifndef SIZE
#define SIZE 100
#endif
#ifndef TIMES
#define TIMES OPS/(SIZE+1)
#endif
int
main ()
{
mp_limb_t nptr[2 * SIZE];
mp_limb_t dptr[2 * SIZE];
mp_limb_t qptr[2 * SIZE];
mp_limb_t pptr[2 * SIZE + 1];
mp_limb_t rptr[2 * SIZE];
mp_size_t nsize, dsize, qsize, rsize, psize;
int test;
mp_limb_t qlimb;
for (test = 0; ; test++)
{
printf ("%d\n", test);
#ifdef RANDOM
nsize = random () % (2 * SIZE) + 1;
dsize = random () % nsize + 1;
#else
nsize = 2 * SIZE;
dsize = SIZE;
#endif
mpn_random2 (nptr, nsize);
mpn_random2 (dptr, dsize);
dptr[dsize - 1] |= (mp_limb_t) 1 << (GMP_LIMB_BITS - 1);
MPN_COPY (rptr, nptr, nsize);
qlimb = mpn_divrem (qptr, (mp_size_t) 0, rptr, nsize, dptr, dsize);
rsize = dsize;
qsize = nsize - dsize;
qptr[qsize] = qlimb;
qsize += qlimb;
if (qsize == 0 || qsize > 2 * SIZE)
{
continue; /* bogus */
}
else
{
mp_limb_t cy;
if (qsize > dsize)
mpn_mul (pptr, qptr, qsize, dptr, dsize);
else
mpn_mul (pptr, dptr, dsize, qptr, qsize);
psize = qsize + dsize;
psize -= pptr[psize - 1] == 0;
cy = mpn_add (pptr, pptr, psize, rptr, rsize);
pptr[psize] = cy;
psize += cy;
}
if (nsize != psize || mpn_cmp (nptr, pptr, nsize) != 0)
abort ();
}
}
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