spect.c
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上传日期:2022-08-06
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- /* spect.c -- the spectral test */
- /*
- Copyright 1999 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/. */
- /* T is upper dimension. Z_A is the LC multiplier, which is
- relatively prime to Z_M, the LC modulus. The result is put in
- rop[] with v[t] in rop[t-2]. */
- /* BUGS: Due to lazy allocation scheme, maximum T is hard coded to MAXT. */
- #include <stdio.h>
- #include <stdlib.h>
- #include <unistd.h>
- #include <math.h>
- #include "gmp.h"
- #include "gmpstat.h"
- int g_debug = 0;
- int
- main (int argc, char *argv[])
- {
- const char usage[] = "usage: spect [-d] a m nn";
- int c;
- unsigned int n;
- mpz_t a, m;
- mpf_t res[GMP_SPECT_MAXT], res_min[GMP_SPECT_MAXT], f_tmp;
- register int f;
- mpz_init (a);
- mpz_init (m);
- for (f = 0; f < GMP_SPECT_MAXT; f++)
- {
- mpf_init (res[f]);
- mpf_init (res_min[f]);
- }
- mpf_init (f_tmp);
- mpf_set_ui (res_min[0], 32768); /* 2^15 */
- mpf_set_ui (res_min[1], 1024); /* 2^10 */
- mpf_set_ui (res_min[2], 256); /* 2^8 */
- mpf_set_ui (res_min[3], 64); /* 2^6 */
- mpf_set_ui (res_min[4], 32); /* 2^5 */
- while ((c = getopt (argc, argv, "dh")) != -1)
- switch (c)
- {
- case 'd': /* debug */
- g_debug++;
- break;
- case 'h':
- default:
- fputs (usage, stderr);
- exit (1);
- }
- argc -= optind;
- argv += optind;
- if (argc < 3)
- {
- fputs (usage, stderr);
- exit (1);
- }
- mpz_set_str (a, argv[0], 0);
- mpz_set_str (m, argv[1], 0);
- n = (unsigned int) atoi (argv[2]);
- if (n + 1 > GMP_SPECT_MAXT)
- n = GMP_SPECT_MAXT + 1;
- spectral_test (res, n, a, m);
- for (f = 0; f < n - 1; f++)
- {
- /* print v */
- printf ("%d: v = ", f + 2);
- mpf_out_str (stdout, 10, 4, res[f]);
- #ifdef PRINT_RAISED_BY_TWO_AS_WELL
- printf (" (^2 = ");
- mpf_mul (f_tmp, res[f], res[f]);
- mpf_out_str (stdout, 10, 4, f_tmp);
- printf (")");
- #endif /* PRINT_RAISED_BY_TWO_AS_WELL */
- /* print merit */
- printf (" m = ");
- merit (f_tmp, f + 2, res[f], m);
- mpf_out_str (stdout, 10, 4, f_tmp);
- if (mpf_cmp (res[f], res_min[f]) < 0)
- printf ("t*** v too low ***");
- if (mpf_get_d (f_tmp) < .1)
- printf ("t*** merit too low ***");
- puts ("");
- }
- mpz_clear (a);
- mpz_clear (m);
- for (f = 0; f < GMP_SPECT_MAXT; f++)
- {
- mpf_clear (res[f]);
- mpf_clear (res_min[f]);
- }
- mpf_clear (f_tmp);
- return 0;
- }
- void
- debug_foo()
- {
- if (0)
- {
- mpz_dump (0);
- mpf_dump (0);
- }
- }