blob: 2b287f866403993ceaea4bfaa20e3f99618f0d68 (
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
|
/* Test of log2() function.
Copyright (C) 2010-2016 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2012. */
#include <config.h>
#include <math.h>
#include "signature.h"
SIGNATURE_CHECK (log2, double, (double));
#include <float.h>
#include "minus-zero.h"
#include "macros.h"
#define DOUBLE double
#define HUGEVAL HUGE_VAL
#define L_(literal) literal
#define MANT_DIG DBL_MANT_DIG
#define MAX_EXP DBL_MAX_EXP
#define MIN_EXP DBL_MIN_EXP
#define MINUS_ZERO minus_zerod
#define LOG2 log2
#define RANDOM randomd
#include "test-log2.h"
int
main ()
{
/* A particular value. */
x = 0.6;
y = log2 (x);
ASSERT (y >= -0.7369655942 && y <= -0.7369655941);
test_function ();
return 0;
}
|
