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/* Test for mulmid function.
Copyright 2011 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
The GNU MP Library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser 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 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 Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
#include <stdlib.h>
#include <stdio.h>
#include "gmp.h"
#include "gmp-impl.h"
#include "tests.h"
/* Sizes are up to 2^SIZE_LOG limbs */
#ifndef SIZE_LOG
#define SIZE_LOG 9
#endif
#ifndef COUNT
#define COUNT 5000
#endif
#define MAX_N (1L << SIZE_LOG)
int
main (int argc, char **argv)
{
mp_ptr ap, bp, rp, refp;
gmp_randstate_ptr rands;
int test;
TMP_DECL;
TMP_MARK;
tests_start ();
rands = RANDS;
ap = TMP_ALLOC_LIMBS (MAX_N);
bp = TMP_ALLOC_LIMBS (MAX_N);
rp = TMP_ALLOC_LIMBS (MAX_N + 2);
refp = TMP_ALLOC_LIMBS (MAX_N + 2);
for (test = 0; test < COUNT; test++)
{
mp_size_t an, bn, rn;
unsigned size_log;
size_log = 1 + gmp_urandomm_ui (rands, SIZE_LOG);
an = 1 + gmp_urandomm_ui(rands, 1L << size_log);
size_log = 1 + gmp_urandomm_ui (rands, SIZE_LOG);
bn = 1 + gmp_urandomm_ui(rands, 1L << size_log);
/* Make sure an >= bn */
if (an < bn)
MP_SIZE_T_SWAP (an, bn);
mpn_random2 (ap, an);
mpn_random2 (bp, bn);
refmpn_mulmid (refp, ap, an, bp, bn);
mpn_mulmid (rp, ap, an, bp, bn);
rn = an + 3 - bn;
if (mpn_cmp (refp, rp, rn))
{
printf ("ERROR in test %d, an = %d, bn = %d, rn = %d\n",
test, an, bn, rn);
printf("a: "); mpn_dump (ap, an);
printf("b: "); mpn_dump (bp, bn);
printf("r: "); mpn_dump (rp, rn);
printf("ref: "); mpn_dump (refp, rn);
abort();
}
}
TMP_FREE;
tests_end ();
return 0;
}
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