blob: c2408c598a30cc1426fa6618f187e82018368625 (
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
|
/* Test of splitting a double into fraction and mantissa.
Copyright (C) 2007-2017 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 <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
#include <config.h>
#include <math.h>
#include "signature.h"
SIGNATURE_CHECK (frexp, double, (double, int *));
#include <float.h>
#include "isnand-nolibm.h"
#include "minus-zero.h"
#include "infinity.h"
#include "nan.h"
#include "macros.h"
/* Avoid some warnings from "gcc -Wshadow".
This file doesn't use the exp() function. */
#undef exp
#define exp exponent
#undef INFINITY
#undef NAN
#define DOUBLE double
/* The use of 'volatile' guarantees that excess precision bits are dropped
when dealing with denormalized numbers. It is necessary on x86 systems
where double-floats are not IEEE compliant by default, to avoid that the
results become platform and compiler option dependent. 'volatile' is a
portable alternative to gcc's -ffloat-store option. */
#define VOLATILE volatile
#define ISNAN isnand
#define INFINITY Infinityd ()
#define NAN NaNd ()
#define L_(literal) literal
#define MINUS_ZERO minus_zerod
#define MAX_EXP DBL_MAX_EXP
#define MIN_EXP DBL_MIN_EXP
#define MIN_NORMAL_EXP DBL_MIN_EXP
#define FREXP frexp
#define RANDOM randomd
#include "test-frexp.h"
int
main ()
{
test_function ();
return 0;
}
|
