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
|
/* This file is part of the Compcert verified compiler.
*
* Copyright (c) 2015 Institut National de Recherche en Informatique et
* en Automatique.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the <organization> nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT
* HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* <float.h> -- characteristics of floating types (ISO C99 7.7) */
#ifndef _FLOAT_H
#define _FLOAT_H
/* FP numbers are in binary */
#define FLT_RADIX 2
/* No excess precision is used during FP arithmetic */
#define FLT_EVAL_METHOD 0
/* FP operations round to nearest even */
#define FLT_ROUNDS 1
/* Number of decimal digits sufficient to represent FP numbers */
#define DECIMAL_DIG 17
/* The "float" type is IEEE binary32 */
#define FLT_MANT_DIG 24
#define FLT_DIG 6
#define FLT_ROUNDS 1
#define FLT_EPSILON 0x1p-23F
#define FLT_MIN_EXP (-125)
#define FLT_MIN 0x1p-126F
#define FLT_MIN_10_EXP (-37)
#define FLT_MAX_EXP 128
#define FLT_MAX 0x1.fffffep+127F
#define FLT_MAX_10_EXP 38
/* The "double" type is IEEE binary64 */
#define DBL_MANT_DIG 53
#define DBL_DIG 15
#define DBL_EPSILON 0x1p-52
#define DBL_MIN_EXP (-1021)
#define DBL_MIN 0x1p-1022
#define DBL_MIN_10_EXP (-307)
#define DBL_MAX_EXP 1024
#define DBL_MAX 0x1.fffffffffffffp+1023
#define DBL_MAX_10_EXP 308
/* The "long double" type, when supported, is IEEE binary64 */
#define LDBL_MANT_DIG 53
#define LDBL_DIG 15
#define LDBL_EPSILON 0x1p-52L
#define LDBL_MIN_EXP (-1021)
#define LDBL_MIN 0x1p-1022L
#define LDBL_MIN_10_EXP (-307)
#define LDBL_MAX_EXP 1024
#define LDBL_MAX 0x1.fffffffffffffp+1023L
#define LDBL_MAX_10_EXP 308
#endif
|