1/* Copyright (C) 2005 Free Software Foundation, Inc.
2
3This file is part of GCC.
4
5GCC is free software; you can redistribute it and/or modify
6it under the terms of the GNU General Public License as published by
7the Free Software Foundation; either version 2, or (at your option)
8any later version.
9
10GCC is distributed in the hope that it will be useful,
11but WITHOUT ANY WARRANTY; without even the implied warranty of
12MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13GNU General Public License for more details.
14
15You should have received a copy of the GNU General Public License
16along with GCC; see the file COPYING.  If not, write to
17the Free Software Foundation, 51 Franklin Street, Fifth Floor,
18Boston, MA 02110-1301, USA.  */
19
20/* As a special exception, if you include this header file into source
21   files compiled by GCC, this header file does not by itself cause
22   the resulting executable to be covered by the GNU General Public
23   License.  This exception does not however invalidate any other
24   reasons why the executable file might be covered by the GNU General
25   Public License.  */
26
27/*
28 * Draft C Extension to support decimal floating-pointing arithmetic:
29 * Characteristics of decimal floating types <decfloat.h>
30 */
31
32#ifndef _DECFLOAT_H___
33#define _DECFLOAT_H___
34
35/* Number of base-FLT_RADIX digits in the significand, p.  */
36#undef DEC32_MANT_DIG
37#undef DEC64_MANT_DIG
38#undef DEC128_MANT_DIG
39#define DEC32_MANT_DIG	__DEC32_MANT_DIG__
40#define DEC64_MANT_DIG	__DEC64_MANT_DIG__
41#define DEC128_MANT_DIG	__DEC128_MANT_DIG__
42
43/* Minimum exponent. */
44#undef DEC32_MIN_EXP
45#undef DEC64_MIN_EXP
46#undef DEC128_MIN_EXP
47#define DEC32_MIN_EXP	__DEC32_MIN_EXP__
48#define DEC64_MIN_EXP	__DEC64_MIN_EXP__
49#define DEC128_MIN_EXP	__DEC128_MIN_EXP__
50
51/* Maximum exponent. */
52#undef DEC32_MAX_EXP
53#undef DEC64_MAX_EXP
54#undef DEC128_MAX_EXP
55#define DEC32_MAX_EXP	__DEC32_MAX_EXP__
56#define DEC64_MAX_EXP	__DEC64_MAX_EXP__
57#define DEC128_MAX_EXP	__DEC128_MAX_EXP__
58
59/* Maximum representable finite decimal floating-point number
60   (there are 6, 15, and 33 9s after the decimal points respectively). */
61#undef DEC32_MAX
62#undef DEC64_MAX
63#undef DEC128_MAX
64#define DEC32_MAX   __DEC32_MAX__
65#define DEC64_MAX   __DEC64_MAX__
66#define DEC128_MAX  __DEC128_MAX__
67
68/* The difference between 1 and the least value greater than 1 that is
69   representable in the given floating point type. */
70#undef DEC32_EPSILON
71#undef DEC64_EPSILON
72#undef DEC128_EPSILON
73#define DEC32_EPSILON	__DEC32_EPSILON__
74#define DEC64_EPSILON	__DEC64_EPSILON__
75#define DEC128_EPSILON	__DEC128_EPSILON__
76
77/* Minimum normalized positive floating-point number. */
78#undef DEC32_MIN
79#undef DEC64_MIN
80#undef DEC128_MIN
81#define DEC32_MIN	__DEC32_MIN__
82#define DEC64_MIN	__DEC64_MIN__
83#define DEC128_MIN	__DEC128_MIN__
84
85/* Minimum denormalized positive floating-point number. */
86#undef DEC32_DEN
87#undef DEC64_DEN
88#undef DEC128_DEN
89#define DEC32_DEN       __DEC32_DEN__
90#define DEC64_DEN       __DEC64_DEN__
91#define DEC128_DEN      __DEC128_DEN__
92
93/* The floating-point expression evaluation method.
94         -1  indeterminate
95         0  evaluate all operations and constants just to the range and
96            precision of the type
97         1  evaluate operations and constants of type _Decimal32
98	    and _Decimal64 to the range and precision of the _Decimal64
99            type, evaluate _Decimal128 operations and constants to the
100	    range and precision of the _Decimal128 type;
101	 2  evaluate all operations and constants to the range and
102	    precision of the _Decimal128 type.
103*/
104
105#undef DECFLT_EVAL_METHOD
106#define DECFLT_EVAL_METHOD	__DECFLT_EVAL_METHOD__
107
108#endif /* _DECFLOAT_H___ */
109