blob: 01dea1c0a105e48312cd5d3ee0d0fc30357eea6a (
plain)
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
|
/* Test iseqsig with excess precision.
Copyright (C) 2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C 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 GNU C 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 GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <float.h>
#include <math.h>
#include <stdio.h>
static int
do_test (void)
{
int result = 0;
if (FLT_EVAL_METHOD == 1 || FLT_EVAL_METHOD == 2 || FLT_EVAL_METHOD > 32)
{
/* Excess precision for float. */
if (iseqsig (1.0f, 1.0f + (float) DBL_EPSILON))
{
puts ("iseqsig removes excess precision float -> double");
result = 1;
}
else
puts ("iseqsig preserves excess precision float -> double");
if (iseqsig (__builtin_inff (), FLT_MAX * FLT_MAX))
{
puts ("iseqsig removes excess range float -> double");
result = 1;
}
else
puts ("iseqsig preserves excess range float -> double");
}
if (FLT_EVAL_METHOD == 2 || FLT_EVAL_METHOD > 64)
{
/* Excess precision for float and double. */
if (iseqsig (1.0f, 1.0f + (float) LDBL_EPSILON))
{
puts ("iseqsig removes excess precision float -> long double");
result = 1;
}
else
puts ("iseqsig preserves excess precision float -> long double");
if (iseqsig (1.0, 1.0 + (double) LDBL_EPSILON))
{
puts ("iseqsig removes excess precision double -> long double");
result = 1;
}
else
puts ("iseqsig preserves excess precision double -> long double");
if (LDBL_MAX_EXP >= 2 * DBL_MAX_EXP)
{
if (iseqsig (__builtin_inf (), DBL_MAX * DBL_MAX))
{
puts ("iseqsig removes excess range double -> long double");
result = 1;
}
else
puts ("iseqsig preserves excess range double -> long double");
}
}
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
|
