1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/* tpow_si -- test file for mpc_pow_si.
Copyright (C) 2009, 2010, 2011 INRIA
This file is part of GNU MPC.
GNU MPC 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.
GNU MPC 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 this program. If not, see http://www.gnu.org/licenses/ .
*/
#include <limits.h> /* for CHAR_BIT */
#include "mpc-tests.h"
static void
compare_mpc_pow (mpfr_prec_t pmax, int iter, unsigned long nbits)
/* copied from tpow_ui.c and replaced unsigned by signed */
{
mpfr_prec_t p;
mpc_t x, y, z, t;
long n;
int i, inex_pow, inex_pow_si;
mpc_rnd_t rnd;
mpc_init3 (y, sizeof (unsigned long) * CHAR_BIT, MPFR_PREC_MIN);
for (p = MPFR_PREC_MIN; p <= pmax; p++)
for (i = 0; i < iter; i++)
{
mpc_init2 (x, p);
mpc_init2 (z, p);
mpc_init2 (t, p);
mpc_urandom (x, rands);
n = (signed long) gmp_urandomb_ui (rands, nbits);
mpc_set_si (y, n, MPC_RNDNN);
for (rnd = 0; rnd < 16; rnd ++)
{
inex_pow = mpc_pow (z, x, y, rnd);
inex_pow_si = mpc_pow_si (t, x, n, rnd);
if (mpc_cmp (z, t) != 0)
{
printf ("mpc_pow and mpc_pow_si differ for x=");
mpc_out_str (stdout, 10, 0, x, MPC_RNDNN);
printf (" n=%li\n", n);
printf ("mpc_pow gives ");
mpc_out_str (stdout, 10, 0, z, MPC_RNDNN);
printf ("\nmpc_pow_si gives ");
mpc_out_str (stdout, 10, 0, t, MPC_RNDNN);
printf ("\n");
exit (1);
}
if (inex_pow != inex_pow_si)
{
printf ("mpc_pow and mpc_pow_si give different flags for x=");
mpc_out_str (stdout, 10, 0, x, MPC_RNDNN);
printf (" n=%li\n", n);
printf ("mpc_pow gives %d\n", inex_pow);
printf ("mpc_pow_si gives %d\n", inex_pow_si);
exit (1);
}
}
mpc_clear (x);
mpc_clear (z);
mpc_clear (t);
}
mpc_clear (y);
}
int
main (void)
{
DECL_FUNC (CCS, f, mpc_pow_si);
test_start ();
data_check (f, "pow_si.dat");
compare_mpc_pow (100, 5, 19);
test_end ();
return 0;
}
|
