1 /* Test mpf_add.
2
3 Copyright 1996, 2001 Free Software Foundation, Inc.
4
5 This file is part of the GNU MP Library test suite.
6
7 The GNU MP Library test suite is free software; you can redistribute it
8 and/or modify it under the terms of the GNU General Public License as
9 published by the Free Software Foundation; either version 3 of the License,
10 or (at your option) any later version.
11
12 The GNU MP Library test suite is distributed in the hope that it will be
13 useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
15 Public License for more details.
16
17 You should have received a copy of the GNU General Public License along with
18 the GNU MP Library test suite. If not, see https://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
main(int argc,char ** argv)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