427 lines
8.8 KiB
C
427 lines
8.8 KiB
C
/* Test mpz_addmul, mpz_addmul_ui, mpz_submul, mpz_submul_ui.
|
|
|
|
Copyright 2001, 2002 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 2.1 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; see the file COPYING.LIB. If not, write to
|
|
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
MA 02110-1301, USA. */
|
|
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "mpir.h"
|
|
#include "gmp-impl.h"
|
|
#include "tests.h"
|
|
|
|
|
|
#define M GMP_NUMB_MAX
|
|
|
|
|
|
void
|
|
check_one_inplace (mpz_srcptr w, mpz_srcptr y)
|
|
{
|
|
mpz_t want, got;
|
|
|
|
mpz_init (want);
|
|
mpz_init (got);
|
|
|
|
mpz_mul (want, w, y);
|
|
mpz_add (want, w, want);
|
|
mpz_set (got, w);
|
|
mpz_addmul (got, got, y);
|
|
MPZ_CHECK_FORMAT (got);
|
|
if (mpz_cmp (want, got) != 0)
|
|
{
|
|
printf ("mpz_addmul inplace fail\n");
|
|
fail:
|
|
mpz_trace ("w", w);
|
|
mpz_trace ("y", y);
|
|
mpz_trace ("want", want);
|
|
mpz_trace ("got ", got);
|
|
abort ();
|
|
}
|
|
|
|
mpz_mul (want, w, y);
|
|
mpz_sub (want, w, want);
|
|
mpz_set (got, w);
|
|
mpz_submul (got, got, y);
|
|
MPZ_CHECK_FORMAT (got);
|
|
if (mpz_cmp (want, got) != 0)
|
|
{
|
|
printf ("mpz_submul inplace fail\n");
|
|
goto fail;
|
|
}
|
|
|
|
mpz_clear (want);
|
|
mpz_clear (got);
|
|
}
|
|
|
|
void
|
|
check_one_ui_inplace (mpz_ptr w, unsigned long y)
|
|
{
|
|
mpz_t want, got;
|
|
|
|
mpz_init (want);
|
|
mpz_init (got);
|
|
|
|
mpz_mul_ui (want, w, (unsigned long) y);
|
|
mpz_add (want, w, want);
|
|
mpz_set (got, w);
|
|
mpz_addmul_ui (got, got, (unsigned long) y);
|
|
MPZ_CHECK_FORMAT (got);
|
|
if (mpz_cmp (want, got) != 0)
|
|
{
|
|
printf ("mpz_addmul_ui fail\n");
|
|
fail:
|
|
mpz_trace ("w", w);
|
|
printf ("y=0x%lX %lu\n", y, y);
|
|
mpz_trace ("want", want);
|
|
mpz_trace ("got ", got);
|
|
abort ();
|
|
}
|
|
|
|
mpz_mul_ui (want, w, y);
|
|
mpz_sub (want, w, want);
|
|
mpz_set (got, w);
|
|
mpz_submul_ui (got, got, y);
|
|
MPZ_CHECK_FORMAT (got);
|
|
if (mpz_cmp (want, got) != 0)
|
|
{
|
|
printf ("mpz_submul_ui fail\n");
|
|
goto fail;
|
|
}
|
|
|
|
mpz_clear (want);
|
|
mpz_clear (got);
|
|
}
|
|
|
|
void
|
|
check_all_inplace (mpz_ptr w, mpz_ptr y)
|
|
{
|
|
int wneg, yneg;
|
|
|
|
MPZ_CHECK_FORMAT (w);
|
|
MPZ_CHECK_FORMAT (y);
|
|
|
|
for (wneg = 0; wneg < 2; wneg++)
|
|
{
|
|
for (yneg = 0; yneg < 2; yneg++)
|
|
{
|
|
check_one_inplace (w, y);
|
|
|
|
if (mpz_fits_ulong_p (y))
|
|
check_one_ui_inplace (w, mpz_get_ui (y));
|
|
|
|
mpz_neg (y, y);
|
|
}
|
|
mpz_neg (w, w);
|
|
}
|
|
}
|
|
|
|
void
|
|
check_one (mpz_srcptr w, mpz_srcptr x, mpz_srcptr y)
|
|
{
|
|
mpz_t want, got;
|
|
|
|
mpz_init (want);
|
|
mpz_init (got);
|
|
|
|
mpz_mul (want, x, y);
|
|
mpz_add (want, w, want);
|
|
mpz_set (got, w);
|
|
mpz_addmul (got, x, y);
|
|
MPZ_CHECK_FORMAT (got);
|
|
if (mpz_cmp (want, got) != 0)
|
|
{
|
|
printf ("mpz_addmul fail\n");
|
|
fail:
|
|
mpz_trace ("w", w);
|
|
mpz_trace ("x", x);
|
|
mpz_trace ("y", y);
|
|
mpz_trace ("want", want);
|
|
mpz_trace ("got ", got);
|
|
abort ();
|
|
}
|
|
|
|
mpz_mul (want, x, y);
|
|
mpz_sub (want, w, want);
|
|
mpz_set (got, w);
|
|
mpz_submul (got, x, y);
|
|
MPZ_CHECK_FORMAT (got);
|
|
if (mpz_cmp (want, got) != 0)
|
|
{
|
|
printf ("mpz_submul fail\n");
|
|
goto fail;
|
|
}
|
|
|
|
mpz_clear (want);
|
|
mpz_clear (got);
|
|
}
|
|
|
|
void
|
|
check_one_ui (mpz_ptr w, mpz_ptr x, unsigned long y)
|
|
{
|
|
mpz_t want, got;
|
|
|
|
mpz_init (want);
|
|
mpz_init (got);
|
|
|
|
mpz_mul_ui (want, x, (unsigned long) y);
|
|
mpz_add (want, w, want);
|
|
mpz_set (got, w);
|
|
mpz_addmul_ui (got, x, (unsigned long) y);
|
|
MPZ_CHECK_FORMAT (got);
|
|
if (mpz_cmp (want, got) != 0)
|
|
{
|
|
printf ("mpz_addmul_ui fail\n");
|
|
fail:
|
|
mpz_trace ("w", w);
|
|
mpz_trace ("x", x);
|
|
printf ("y=0x%lX %lu\n", y, y);
|
|
mpz_trace ("want", want);
|
|
mpz_trace ("got ", got);
|
|
abort ();
|
|
}
|
|
|
|
mpz_mul_ui (want, x, y);
|
|
mpz_sub (want, w, want);
|
|
mpz_set (got, w);
|
|
mpz_submul_ui (got, x, y);
|
|
MPZ_CHECK_FORMAT (got);
|
|
if (mpz_cmp (want, got) != 0)
|
|
{
|
|
printf ("mpz_submul_ui fail\n");
|
|
goto fail;
|
|
}
|
|
|
|
mpz_clear (want);
|
|
mpz_clear (got);
|
|
}
|
|
|
|
|
|
void
|
|
check_all (mpz_ptr w, mpz_ptr x, mpz_ptr y)
|
|
{
|
|
int swap, wneg, xneg, yneg;
|
|
|
|
MPZ_CHECK_FORMAT (w);
|
|
MPZ_CHECK_FORMAT (x);
|
|
MPZ_CHECK_FORMAT (y);
|
|
|
|
for (swap = 0; swap < 2; swap++)
|
|
{
|
|
for (wneg = 0; wneg < 2; wneg++)
|
|
{
|
|
for (xneg = 0; xneg < 2; xneg++)
|
|
{
|
|
for (yneg = 0; yneg < 2; yneg++)
|
|
{
|
|
check_one (w, x, y);
|
|
|
|
if (mpz_fits_ulong_p (y))
|
|
check_one_ui (w, x, mpz_get_ui (y));
|
|
|
|
mpz_neg (y, y);
|
|
}
|
|
mpz_neg (x, x);
|
|
}
|
|
mpz_neg (w, w);
|
|
}
|
|
mpz_swap (x, y);
|
|
}
|
|
}
|
|
|
|
void
|
|
check_data_inplace_ui (void)
|
|
{
|
|
static const struct {
|
|
mp_limb_t w[6];
|
|
unsigned long y;
|
|
|
|
} data[] = {
|
|
|
|
{ { 0 }, 0 },
|
|
{ { 0 }, 1 },
|
|
{ { 1 }, 1 },
|
|
{ { 2 }, 1 },
|
|
|
|
{ { 123 }, 1 },
|
|
{ { 123 }, ULONG_MAX },
|
|
{ { M }, 1 },
|
|
{ { M }, ULONG_MAX },
|
|
|
|
{ { 123, 456 }, 1 },
|
|
{ { M, M }, 1 },
|
|
{ { 123, 456 }, ULONG_MAX },
|
|
{ { M, M }, ULONG_MAX },
|
|
|
|
{ { 123, 456, 789 }, 1 },
|
|
{ { M, M, M }, 1 },
|
|
{ { 123, 456, 789 }, ULONG_MAX },
|
|
{ { M, M, M }, ULONG_MAX },
|
|
};
|
|
|
|
mpz_t w, y;
|
|
int i;
|
|
|
|
mpz_init (w);
|
|
mpz_init (y);
|
|
|
|
for (i = 0; i < numberof (data); i++)
|
|
{
|
|
mpz_set_n (w, data[i].w, (mp_size_t) numberof(data[i].w));
|
|
mpz_set_ui (y, data[i].y);
|
|
check_all_inplace (w, y);
|
|
}
|
|
|
|
mpz_clear (w);
|
|
mpz_clear (y);
|
|
}
|
|
|
|
void
|
|
check_data (void)
|
|
{
|
|
static const struct {
|
|
mp_limb_t w[6];
|
|
mp_limb_t x[6];
|
|
mp_limb_t y[6];
|
|
|
|
} data[] = {
|
|
|
|
/* reducing to zero */
|
|
{ { 1 }, { 1 }, { 1 } },
|
|
{ { 2 }, { 1 }, { 2 } },
|
|
{ { 0,1 }, { 0,1 }, { 1 } },
|
|
|
|
/* reducing to 1 */
|
|
{ { 0,1 }, { M }, { 1 } },
|
|
{ { 0,0,1 }, { M,M }, { 1 } },
|
|
{ { 0,0,0,1 }, { M,M,M }, { 1 } },
|
|
{ { 0,0,0,0,1 }, { M,M,M,M }, { 1 } },
|
|
|
|
/* reducing to -1 */
|
|
{ { M }, { 0,1 }, { 1 } },
|
|
{ { M,M }, { 0,0,1 }, { 1 } },
|
|
{ { M,M,M }, { 0,0,0,1 }, { 1 } },
|
|
{ { M,M,M,M }, { 0,0,0,0,1 }, { 1 } },
|
|
|
|
/* carry out of addmul */
|
|
{ { M }, { 1 }, { 1 } },
|
|
{ { M,M }, { 1 }, { 1 } },
|
|
{ { M,M,M }, { 1 }, { 1 } },
|
|
|
|
/* borrow from submul */
|
|
{ { 0,1 }, { 1 }, { 1 } },
|
|
{ { 0,0,1 }, { 1 }, { 1 } },
|
|
{ { 0,0,0,1 }, { 1 }, { 1 } },
|
|
|
|
/* borrow from submul */
|
|
{ { 0,0,1 }, { 0,1 }, { 1 } },
|
|
{ { 0,0,0,1 }, { 0,1 }, { 1 } },
|
|
{ { 0,0,0,0,1 }, { 0,1 }, { 1 } },
|
|
|
|
/* more borrow from submul */
|
|
{ { M }, { 0,1 }, { 1 } },
|
|
{ { M }, { 0,0,1 }, { 1 } },
|
|
{ { M }, { 0,0,0,1 }, { 1 } },
|
|
{ { M }, { 0,0,0,0,1 }, { 1 } },
|
|
|
|
/* big borrow from submul */
|
|
{ { 0,0,1 }, { M,M }, { M } },
|
|
{ { 0,0,0,1 }, { M,M }, { M } },
|
|
{ { 0,0,0,0,1 }, { M,M }, { M } },
|
|
|
|
/* small w */
|
|
{ { 0,1 }, { M,M }, { M } },
|
|
{ { 0,1 }, { M,M,M }, { M } },
|
|
{ { 0,1 }, { M,M,M,M }, { M } },
|
|
{ { 0,1 }, { M,M,M,M,M }, { M } },
|
|
};
|
|
|
|
mpz_t w, x, y;
|
|
int i;
|
|
|
|
mpz_init (w);
|
|
mpz_init (x);
|
|
mpz_init (y);
|
|
|
|
for (i = 0; i < numberof (data); i++)
|
|
{
|
|
mpz_set_n (w, data[i].w, (mp_size_t) numberof(data[i].w));
|
|
mpz_set_n (x, data[i].x, (mp_size_t) numberof(data[i].x));
|
|
mpz_set_n (y, data[i].y, (mp_size_t) numberof(data[i].y));
|
|
check_all (w, x, y);
|
|
}
|
|
|
|
mpz_clear (w);
|
|
mpz_clear (x);
|
|
mpz_clear (y);
|
|
}
|
|
|
|
|
|
void
|
|
check_random (int argc, char *argv[])
|
|
{
|
|
gmp_randstate_t rands;
|
|
mpz_t w, x, y;
|
|
int i, reps = 2000;
|
|
|
|
gmp_randinit_default(rands);
|
|
mpz_init (w);
|
|
mpz_init (x);
|
|
mpz_init (y);
|
|
|
|
if (argc == 2)
|
|
reps = atoi (argv[1]);
|
|
|
|
for (i = 0; i < reps; i++)
|
|
{
|
|
mpz_errandomb (w, rands, 5*BITS_PER_MP_LIMB);
|
|
mpz_errandomb (x, rands, 5*BITS_PER_MP_LIMB);
|
|
mpz_errandomb (y, rands, 5*BITS_PER_MP_LIMB);
|
|
check_all (w, x, y);
|
|
check_all_inplace (w, y);
|
|
|
|
mpz_errandomb (w, rands, 5*BITS_PER_MP_LIMB);
|
|
mpz_errandomb (x, rands, 5*BITS_PER_MP_LIMB);
|
|
mpz_errandomb (y, rands, BITS_PER_ULONG);
|
|
check_all (w, x, y);
|
|
check_all_inplace (w, y);
|
|
}
|
|
|
|
mpz_clear (w);
|
|
mpz_clear (x);
|
|
mpz_clear (y);
|
|
gmp_randclear(rands);
|
|
}
|
|
|
|
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
tests_start ();
|
|
mp_trace_base = -16;
|
|
|
|
check_data ();
|
|
check_data_inplace_ui ();
|
|
check_random (argc, argv);
|
|
|
|
tests_end ();
|
|
exit (0);
|
|
}
|