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
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
/* Test file for mpfr_sqr.
Copyright 2004 Free Software Foundation.
This file is part of the MPFR Library.
The MPFR Library 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 2.1 of the License, or (at your
option) any later version.
The MPFR Library 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 the MPFR Library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA. */
#include <stdio.h>
#include <stdlib.h>
#include "mpfr-test.h"
void check_special (void);
void check_random (mpfr_prec_t p);
int main(void)
{
mpfr_prec_t p;
tests_start_mpfr ();
check_special ();
for(p = 2 ; p < 200 ; p++)
check_random (p);
tests_end_mpfr ();
return 0;
}
static void
error1 (mp_rnd_t rnd, mpfr_prec_t prec,
mpfr_t in, mpfr_t outmul, mpfr_t outsqr)
{
printf("ERROR: for %s and prec=%lu\nINPUT=", mpfr_print_rnd_mode(rnd), prec);
mpfr_dump(in);
printf("OutputMul="); mpfr_dump(outmul);
printf("OutputSqr="); mpfr_dump(outsqr);
exit(1);
}
static void
error2 (mp_rnd_t rnd, mpfr_prec_t prec, mpfr_t in, mpfr_t out,
int inexactmul, int inexactsqr)
{
printf("ERROR: for %s and prec=%lu\nINPUT=", mpfr_print_rnd_mode(rnd), prec);
mpfr_dump(in);
printf("Output="); mpfr_dump(out);
printf("InexactMul= %d InexactSqr= %d\n", inexactmul, inexactsqr);
exit(1);
}
void check_random(mpfr_prec_t p)
{
mpfr_t x,y,z;
mp_rnd_t r;
int i, inexact1, inexact2;
mpfr_inits2(p, x, y, z, NULL);
for(i = 0 ; i < 500 ; i++)
{
mpfr_random (x);
if (MPFR_IS_PURE_FP(x))
for(r = 0 ; r < GMP_RND_MAX ; r++)
{
inexact1 = mpfr_mul (y, x, x, r);
inexact2 = mpfr_sqr (z, x, r);
if (mpfr_cmp(y, z))
error1 (r,p,x,y,z);
if (inexact1 != inexact2)
error2 (r,p,x,y,inexact1,inexact2);
}
}
mpfr_clears(x,y,z,NULL);
}
void check_special(void)
{
mpfr_t x, y;
mp_exp_t emin;
mpfr_init (x);
mpfr_init (y);
mpfr_set_nan (x);
mpfr_sqr (y, x, GMP_RNDN);
MPFR_ASSERTN (mpfr_nan_p (y));
mpfr_set_inf (x, 1);
mpfr_sqr (y, x, GMP_RNDN);
MPFR_ASSERTN (mpfr_inf_p (y) && mpfr_sgn (y) > 0);
mpfr_set_inf (x, -1);
mpfr_sqr (y, x, GMP_RNDN);
MPFR_ASSERTN (mpfr_inf_p (y) && mpfr_sgn (y) > 0);
mpfr_set_ui (x, 0, GMP_RNDN);
mpfr_sqr (y, x, GMP_RNDN);
MPFR_ASSERTN (mpfr_zero_p (y));
emin = mpfr_get_emin ();
mpfr_set_emin (0);
mpfr_set_ui (x, 1, GMP_RNDN);
mpfr_div_2ui (x, x, 1, GMP_RNDN);
MPFR_ASSERTN (!mpfr_zero_p (x));
mpfr_sqr (y, x, GMP_RNDN);
MPFR_ASSERTN (mpfr_zero_p (y));
mpfr_set_emin (emin);
mpfr_clear (y);
mpfr_clear (x);
}
|
