1 /* Test mpf_add. 2 3 Copyright 1996, 2001 Free Software Foundation, Inc. 4 5 This file is part of the GNU MP Library. 6 7 The GNU MP Library is free software; you can redistribute it and/or modify 8 it under the terms of the GNU Lesser General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or (at your 10 option) any later version. 11 12 The GNU MP Library is distributed in the hope that it will be useful, but 13 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 15 License for more details. 16 17 You should have received a copy of the GNU Lesser General Public License 18 along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */ 19 20 #include <stdio.h> 21 #include <stdlib.h> 22 23 #include "gmp.h" 24 #include "gmp-impl.h" 25 #include "tests.h" 26 27 #ifndef SIZE 28 #define SIZE 16 29 #endif 30 31 int 32 main (int argc, char **argv) 33 { 34 mp_size_t size; 35 mp_exp_t exp; 36 int reps = 20000; 37 int i; 38 mpf_t u, v, w, wref; 39 mp_size_t bprec = 100; 40 mpf_t rerr, max_rerr, limit_rerr; 41 42 tests_start (); 43 44 if (argc > 1) 45 { 46 reps = strtol (argv[1], 0, 0); 47 if (argc > 2) 48 bprec = strtol (argv[2], 0, 0); 49 } 50 51 mpf_set_default_prec (bprec); 52 53 mpf_init_set_ui (limit_rerr, 1); 54 mpf_div_2exp (limit_rerr, limit_rerr, bprec); 55 #if VERBOSE 56 mpf_dump (limit_rerr); 57 #endif 58 mpf_init (rerr); 59 mpf_init_set_ui (max_rerr, 0); 60 61 mpf_init (u); 62 mpf_init (v); 63 mpf_init (w); 64 mpf_init (wref); 65 for (i = 0; i < reps; i++) 66 { 67 size = urandom () % (2 * SIZE) - SIZE; 68 exp = urandom () % SIZE; 69 mpf_random2 (u, size, exp); 70 71 size = urandom () % (2 * SIZE) - SIZE; 72 exp = urandom () % SIZE; 73 mpf_random2 (v, size, exp); 74 75 mpf_add (w, u, v); 76 refmpf_add (wref, u, v); 77 78 mpf_reldiff (rerr, w, wref); 79 if (mpf_cmp (rerr, max_rerr) > 0) 80 { 81 mpf_set (max_rerr, rerr); 82 #if VERBOSE 83 mpf_dump (max_rerr); 84 #endif 85 if (mpf_cmp (rerr, limit_rerr) > 0) 86 { 87 printf ("ERROR after %d tests\n", i); 88 printf (" u = "); mpf_dump (u); 89 printf (" v = "); mpf_dump (v); 90 printf ("wref = "); mpf_dump (wref); 91 printf (" w = "); mpf_dump (w); 92 abort (); 93 } 94 } 95 } 96 97 mpf_clear (limit_rerr); 98 mpf_clear (rerr); 99 mpf_clear (max_rerr); 100 101 mpf_clear (u); 102 mpf_clear (v); 103 mpf_clear (w); 104 mpf_clear (wref); 105 106 tests_end (); 107 exit (0); 108 } 109