1 /* Exercise mpz_mfac_uiui.
2
3 Copyright 2000-2002, 2012 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 #include "gmp-impl.h"
23 #include "tests.h"
24
25
26 /* Usage: t-mfac_uiui [x|num]
27
28 With no arguments testing goes up to the initial value of "limit" below.
29 With a number argument tests are carried that far, or with a literal "x"
30 tests are continued without limit (this being meant only for development
31 purposes). */
32
33 #define MULTIFAC_WHEEL (2*3*11)
34 #define MULTIFAC_WHEEL2 (5*13)
35
36 int
37 main (int argc, char *argv[])
38 {
39 mpz_t ref[MULTIFAC_WHEEL], ref2[MULTIFAC_WHEEL2], res;
40 unsigned long n, j, m, m2;
41 unsigned long limit = 2222, step = 1;
42
43 tests_start ();
44
45 if (argc > 1 && argv[1][0] == 'x')
46 limit = ULONG_MAX;
47 else
48 TESTS_REPS (limit, argv, argc);
49
50 /* for small limb testing */
51 limit = MIN (limit, MP_LIMB_T_MAX);
52
53 for (m = 0; m < MULTIFAC_WHEEL; m++)
54 mpz_init_set_ui(ref [m],1);
55 for (m2 = 0; m2 < MULTIFAC_WHEEL2; m2++)
56 mpz_init_set_ui(ref2 [m2],1);
57
58 mpz_init (res);
59
60 m = 0;
61 m2 = 0;
62 for (n = 0; n <= limit;)
63 {
64 mpz_mfac_uiui (res, n, MULTIFAC_WHEEL);
65 MPZ_CHECK_FORMAT (res);
66 if (mpz_cmp (ref[m], res) != 0)
67 {
68 printf ("mpz_mfac_uiui(%lu,%d) wrong\n", n, MULTIFAC_WHEEL);
69 printf (" got "); mpz_out_str (stdout, 10, res); printf("\n");
70 printf (" want "); mpz_out_str (stdout, 10, ref[m]); printf("\n");
71 abort ();
72 }
73 mpz_mfac_uiui (res, n, MULTIFAC_WHEEL2);
74 MPZ_CHECK_FORMAT (res);
75 if (mpz_cmp (ref2[m2], res) != 0)
76 {
77 printf ("mpz_mfac_uiui(%lu,%d) wrong\n", n, MULTIFAC_WHEEL2);
78 printf (" got "); mpz_out_str (stdout, 10, res); printf("\n");
79 printf (" want "); mpz_out_str (stdout, 10, ref2[m2]); printf("\n");
80 abort ();
81 }
82 if (n + step <= limit)
83 for (j = 0; j < step; j++) {
84 n++; m++; m2++;
85 if (m >= MULTIFAC_WHEEL) m -= MULTIFAC_WHEEL;
86 if (m2 >= MULTIFAC_WHEEL2) m2 -= MULTIFAC_WHEEL2;
87 mpz_mul_ui (ref[m], ref[m], n); /* Compute a reference, with current library */
88 mpz_mul_ui (ref2[m2], ref2[m2], n); /* Compute a reference, with current library */
89 }
90 else n += step;
91 }
92 mpz_fac_ui (ref[0], n);
93 mpz_mfac_uiui (res, n, 1);
94 MPZ_CHECK_FORMAT (res);
95 if (mpz_cmp (ref[0], res) != 0)
96 {
97 printf ("mpz_mfac_uiui(%lu,1) wrong\n", n);
98 printf (" got "); mpz_out_str (stdout, 10, res); printf("\n");
99 printf (" want "); mpz_out_str (stdout, 10, ref[0]); printf("\n");
100 abort ();
101 }
102
103 mpz_2fac_ui (ref[0], n);
104 mpz_mfac_uiui (res, n, 2);
105 MPZ_CHECK_FORMAT (res);
106 if (mpz_cmp (ref[0], res) != 0)
107 {
108 printf ("mpz_mfac_uiui(%lu,1) wrong\n", n);
109 printf (" got "); mpz_out_str (stdout, 10, res); printf("\n");
110 printf (" want "); mpz_out_str (stdout, 10, ref[0]); printf("\n");
111 abort ();
112 }
113
114 n++;
115 mpz_2fac_ui (ref[0], n);
116 mpz_mfac_uiui (res, n, 2);
117 MPZ_CHECK_FORMAT (res);
118 if (mpz_cmp (ref[0], res) != 0)
119 {
120 printf ("mpz_mfac_uiui(%lu,2) wrong\n", n);
121 printf (" got "); mpz_out_str (stdout, 10, res); printf("\n");
122 printf (" want "); mpz_out_str (stdout, 10, ref[0]); printf("\n");
123 abort ();
124 }
125
126 for (m = 0; m < MULTIFAC_WHEEL; m++)
127 mpz_clear (ref[m]);
128 for (m2 = 0; m2 < MULTIFAC_WHEEL2; m2++)
129 mpz_clear (ref2[m2]);
130 mpz_clear (res);
131
132 tests_end ();
133
134 exit (0);
135 }