1 /* spect.c -- the spectral test */ 2 3 /* 4 Copyright 1999 Free Software Foundation, Inc. 5 6 This file is part of the GNU MP Library test suite. 7 8 The GNU MP Library test suite is free software; you can redistribute it 9 and/or modify it under the terms of the GNU General Public License as 10 published by the Free Software Foundation; either version 3 of the License, 11 or (at your option) any later version. 12 13 The GNU MP Library test suite is distributed in the hope that it will be 14 useful, but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General 16 Public License for more details. 17 18 You should have received a copy of the GNU General Public License along with 19 the GNU MP Library test suite. If not, see http://www.gnu.org/licenses/. */ 20 21 /* T is upper dimension. Z_A is the LC multiplier, which is 22 relatively prime to Z_M, the LC modulus. The result is put in 23 rop[] with v[t] in rop[t-2]. */ 24 25 /* BUGS: Due to lazy allocation scheme, maximum T is hard coded to MAXT. */ 26 27 #include <stdio.h> 28 #include <stdlib.h> 29 #include <unistd.h> 30 #include <math.h> 31 #include "gmp.h" 32 33 #include "gmpstat.h" 34 35 int g_debug = 0; 36 37 int 38 main (int argc, char *argv[]) 39 { 40 const char usage[] = "usage: spect [-d] a m n\n"; 41 int c; 42 unsigned int n; 43 mpz_t a, m; 44 mpf_t res[GMP_SPECT_MAXT], res_min[GMP_SPECT_MAXT], f_tmp; 45 register int f; 46 47 48 mpz_init (a); 49 mpz_init (m); 50 for (f = 0; f < GMP_SPECT_MAXT; f++) 51 { 52 mpf_init (res[f]); 53 mpf_init (res_min[f]); 54 } 55 mpf_init (f_tmp); 56 mpf_set_ui (res_min[0], 32768); /* 2^15 */ 57 mpf_set_ui (res_min[1], 1024); /* 2^10 */ 58 mpf_set_ui (res_min[2], 256); /* 2^8 */ 59 mpf_set_ui (res_min[3], 64); /* 2^6 */ 60 mpf_set_ui (res_min[4], 32); /* 2^5 */ 61 62 while ((c = getopt (argc, argv, "dh")) != -1) 63 switch (c) 64 { 65 case 'd': /* debug */ 66 g_debug++; 67 break; 68 case 'h': 69 default: 70 fputs (usage, stderr); 71 exit (1); 72 } 73 argc -= optind; 74 argv += optind; 75 76 if (argc < 3) 77 { 78 fputs (usage, stderr); 79 exit (1); 80 } 81 82 mpz_set_str (a, argv[0], 0); 83 mpz_set_str (m, argv[1], 0); 84 n = (unsigned int) atoi (argv[2]); 85 if (n + 1 > GMP_SPECT_MAXT) 86 n = GMP_SPECT_MAXT + 1; 87 88 spectral_test (res, n, a, m); 89 90 for (f = 0; f < n - 1; f++) 91 { 92 /* print v */ 93 printf ("%d: v = ", f + 2); 94 mpf_out_str (stdout, 10, 4, res[f]); 95 96 #ifdef PRINT_RAISED_BY_TWO_AS_WELL 97 printf (" (^2 = "); 98 mpf_mul (f_tmp, res[f], res[f]); 99 mpf_out_str (stdout, 10, 4, f_tmp); 100 printf (")"); 101 #endif /* PRINT_RAISED_BY_TWO_AS_WELL */ 102 103 /* print merit */ 104 printf (" m = "); 105 merit (f_tmp, f + 2, res[f], m); 106 mpf_out_str (stdout, 10, 4, f_tmp); 107 108 if (mpf_cmp (res[f], res_min[f]) < 0) 109 printf ("\t*** v too low ***"); 110 if (mpf_get_d (f_tmp) < .1) 111 printf ("\t*** merit too low ***"); 112 113 puts (""); 114 } 115 116 mpz_clear (a); 117 mpz_clear (m); 118 for (f = 0; f < GMP_SPECT_MAXT; f++) 119 { 120 mpf_clear (res[f]); 121 mpf_clear (res_min[f]); 122 } 123 mpf_clear (f_tmp); 124 125 return 0; 126 } 127 128 129 void 130 debug_foo() 131 { 132 if (0) 133 { 134 mpz_dump (0); 135 mpf_dump (0); 136 } 137 } 138