t-aorsmul.c
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上传日期:2022-08-06
资源大小:2570k
文件大小:9k
- /* 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 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 <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include "gmp.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 failn");
- 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 failn");
- 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 failn");
- fail:
- mpz_trace ("w", w);
- printf ("y=0x%lX %lun", 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 failn");
- 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 failn");
- 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 failn");
- 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 failn");
- fail:
- mpz_trace ("w", w);
- mpz_trace ("x", x);
- printf ("y=0x%lX %lun", 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 failn");
- 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_ptr rands = RANDS;
- mpz_t w, x, y;
- int i, reps = 2000;
- 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*GMP_LIMB_BITS);
- mpz_errandomb (x, rands, 5*GMP_LIMB_BITS);
- mpz_errandomb (y, rands, 5*GMP_LIMB_BITS);
- check_all (w, x, y);
- check_all_inplace (w, y);
- mpz_errandomb (w, rands, 5*GMP_LIMB_BITS);
- mpz_errandomb (x, rands, 5*GMP_LIMB_BITS);
- 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);
- }
- 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);
- }