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Root/tags/2.3/i386/include/float.h

Source at commit 2862 created 7 years 24 days ago.
By ifabio, Tag 2.3 release, bump svn to 2.4
1/* This file exists soley to keep Metrowerks' compilers happy. The version␊
2 used by GCC can be found in /usr/lib/gcc, although it's␊
3 not very informative. */␊
4␊
5#ifndef _FLOAT_H_␊
6␊
7#if defined(__GNUC__)␊
8#include_next <float.h>␊
9␊
10#elif defined(__MWERKS__)␊
11#define _FLOAT_H_␊
12␊
13/* APPLE LOCAL begin MW compatibility */␊
14/* Define various characteristics of floating-point types, if needed. */␊
15#ifndef __FLT_RADIX__ ␊
16#define __FLT_RADIX__ 2␊
17#endif␊
18#ifndef __FLT_MANT_DIG__␊
19#define __FLT_MANT_DIG__ 24␊
20#endif␊
21#ifndef __FLT_DIG__␊
22#define __FLT_DIG__ 6␊
23#endif␊
24#ifndef __FLT_EPSILON__␊
25#define __FLT_EPSILON__ 1.19209290e-07F␊
26#endif␊
27#ifndef __FLT_MIN__␊
28#define __FLT_MIN__ 1.17549435e-38F␊
29#endif␊
30#ifndef __FLT_MAX__␊
31#define __FLT_MAX__ 3.40282347e+38F␊
32#endif␊
33#ifndef __FLT_MIN_EXP__␊
34#define __FLT_MIN_EXP__ (-125)␊
35#endif␊
36#ifndef __FLT_MIN_10_EXP__␊
37#define __FLT_MIN_10_EXP__ (-37)␊
38#endif␊
39#ifndef __FLT_MAX_EXP__␊
40#define __FLT_MAX_EXP__ 128␊
41#endif␊
42#ifndef __FLT_MAX_10_EXP__␊
43#define __FLT_MAX_10_EXP__ 38␊
44#endif␊
45#ifndef __DBL_MANT_DIG__␊
46#define __DBL_MANT_DIG__ 53␊
47#endif␊
48#ifndef __DBL_DIG__␊
49#define __DBL_DIG__ 15␊
50#endif␊
51#ifndef __DBL_EPSILON__␊
52#define __DBL_EPSILON__ 2.2204460492503131e-16␊
53#endif␊
54#ifndef __DBL_MIN__␊
55#define __DBL_MIN__ 2.2250738585072014e-308␊
56#endif␊
57#ifndef __DBL_MAX__␊
58#define __DBL_MAX__ 1.7976931348623157e+308␊
59#endif␊
60#ifndef __DBL_MIN_EXP__␊
61#define __DBL_MIN_EXP__ (-1021)␊
62#endif␊
63#ifndef __DBL_MIN_10_EXP__␊
64#define __DBL_MIN_10_EXP__ (-307)␊
65#endif␊
66#ifndef __DBL_MAX_EXP__␊
67#define __DBL_MAX_EXP__ 1024␊
68#endif␊
69#ifndef __DBL_MAX_10_EXP__␊
70#define __DBL_MAX_10_EXP__ 308␊
71#endif␊
72#ifndef __LDBL_MANT_DIG__␊
73#define __LDBL_MANT_DIG__ 53␊
74#endif␊
75#ifndef __LDBL_DIG__ ␊
76#define __LDBL_DIG__ 15 ␊
77#endif␊
78#ifndef __LDBL_EPSILON__␊
79#define __LDBL_EPSILON__ 2.2204460492503131e-16␊
80#endif␊
81#ifndef __LDBL_MIN__␊
82#define __LDBL_MIN__ 2.2250738585072014e-308␊
83#endif␊
84#ifndef __LDBL_MAX__␊
85#define __LDBL_MAX__ 1.7976931348623157e+308␊
86#endif␊
87#ifndef __LDBL_MIN_EXP__␊
88#define __LDBL_MIN_EXP__ (-1021)␊
89#endif␊
90#ifndef __LDBL_MIN_10_EXP__␊
91#define __LDBL_MIN_10_EXP__ (-307)␊
92#endif␊
93#ifndef __LDBL_MAX_EXP__␊
94#define __LDBL_MAX_EXP__ 1024␊
95#endif␊
96#ifndef __LDBL_MAX_10_EXP__␊
97#define __LDBL_MAX_10_EXP__ 308␊
98#endif␊
99/* APPLE LOCAl end MW compatibility */␊
100␊
101/* Copyright (C) 2002 Free Software Foundation, Inc.␊
102␊
103This file is part of GNU CC.␊
104␊
105GNU CC is free software; you can redistribute it and/or modify␊
106it under the terms of the GNU General Public License as published by␊
107the Free Software Foundation; either version 2, or (at your option)␊
108any later version.␊
109␊
110GNU CC is distributed in the hope that it will be useful,␊
111but WITHOUT ANY WARRANTY; without even the implied warranty of␊
112MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the␊
113GNU General Public License for more details.␊
114␊
115You should have received a copy of the GNU General Public License␊
116along with GNU CC; see the file COPYING. If not, write to␊
117the Free Software Foundation, 59 Temple Place - Suite 330,␊
118Boston, MA 02111-1307, USA. */␊
119␊
120/* As a special exception, if you include this header file into source␊
121 files compiled by GCC, this header file does not by itself cause␊
122 the resulting executable to be covered by the GNU General Public␊
123 License. This exception does not however invalidate any other␊
124 reasons why the executable file might be covered by the GNU General␊
125 Public License. */␊
126␊
127/*␊
128 * ISO C Standard: 5.2.4.2.2 Characteristics of floating types <float.h>␊
129 */␊
130␊
131␊
132/* Radix of exponent representation, b. */␊
133#undef FLT_RADIX␊
134#define FLT_RADIX␉__FLT_RADIX__␊
135␊
136/* Number of base-FLT_RADIX digits in the significand, p. */␊
137#undef FLT_MANT_DIG␊
138#undef DBL_MANT_DIG␊
139#undef LDBL_MANT_DIG␊
140#define FLT_MANT_DIG␉__FLT_MANT_DIG__␊
141#define DBL_MANT_DIG␉__DBL_MANT_DIG__␊
142#define LDBL_MANT_DIG␉__LDBL_MANT_DIG__␊
143␊
144/* Number of decimal digits, q, such that any floating-point number with q␊
145 decimal digits can be rounded into a floating-point number with p radix b␊
146 digits and back again without change to the q decimal digits,␊
147␊
148␉p * log10(b)␉␉␉if b is a power of 10␊
149␉floor((p - 1) * log10(b))␉otherwise␊
150*/␊
151#undef FLT_DIG␊
152#undef DBL_DIG␊
153#undef LDBL_DIG␊
154#define FLT_DIG␉␉__FLT_DIG__␊
155#define DBL_DIG␉␉__DBL_DIG__␊
156#define LDBL_DIG␉__LDBL_DIG__␊
157␊
158/* Minimum int x such that FLT_RADIX**(x-1) is a normalized float, emin */␊
159#undef FLT_MIN_EXP␊
160#undef DBL_MIN_EXP␊
161#undef LDBL_MIN_EXP␊
162#define FLT_MIN_EXP␉__FLT_MIN_EXP__␊
163#define DBL_MIN_EXP␉__DBL_MIN_EXP__␊
164#define LDBL_MIN_EXP␉__LDBL_MIN_EXP__␊
165␊
166/* Minimum negative integer such that 10 raised to that power is in the␊
167 range of normalized floating-point numbers,␊
168␊
169␉ceil(log10(b) * (emin - 1))␊
170*/␊
171#undef FLT_MIN_10_EXP␊
172#undef DBL_MIN_10_EXP␊
173#undef LDBL_MIN_10_EXP␊
174#define FLT_MIN_10_EXP␉__FLT_MIN_10_EXP__␊
175#define DBL_MIN_10_EXP␉__DBL_MIN_10_EXP__␊
176#define LDBL_MIN_10_EXP␉__LDBL_MIN_10_EXP__␊
177␊
178/* Maximum int x such that FLT_RADIX**(x-1) is a representable float, emax. */␊
179#undef FLT_MAX_EXP␊
180#undef DBL_MAX_EXP␊
181#undef LDBL_MAX_EXP␊
182#define FLT_MAX_EXP␉__FLT_MAX_EXP__␊
183#define DBL_MAX_EXP␉__DBL_MAX_EXP__␊
184#define LDBL_MAX_EXP␉__LDBL_MAX_EXP__␊
185␊
186/* Maximum integer such that 10 raised to that power is in the range of␊
187 representable finite floating-point numbers,␊
188␊
189␉floor(log10((1 - b**-p) * b**emax))␊
190*/␊
191#undef FLT_MAX_10_EXP␊
192#undef DBL_MAX_10_EXP␊
193#undef LDBL_MAX_10_EXP␊
194#define FLT_MAX_10_EXP␉__FLT_MAX_10_EXP__␊
195#define DBL_MAX_10_EXP␉__DBL_MAX_10_EXP__␊
196#define LDBL_MAX_10_EXP␉__LDBL_MAX_10_EXP__␊
197␊
198/* Maximum representable finite floating-point number,␊
199␊
200␉(1 - b**-p) * b**emax␊
201*/␊
202#undef FLT_MAX␊
203#undef DBL_MAX␊
204#undef LDBL_MAX␊
205#define FLT_MAX␉␉__FLT_MAX__␊
206#define DBL_MAX␉␉__DBL_MAX__␊
207#define LDBL_MAX␉__LDBL_MAX__␊
208␊
209/* The difference between 1 and the least value greater than 1 that is␊
210 representable in the given floating point type, b**1-p. */␊
211#undef FLT_EPSILON␊
212#undef DBL_EPSILON␊
213#undef LDBL_EPSILON␊
214#define FLT_EPSILON␉__FLT_EPSILON__␊
215#define DBL_EPSILON␉__DBL_EPSILON__␊
216#define LDBL_EPSILON␉__LDBL_EPSILON__␊
217␊
218/* Minimum normalized positive floating-point number, b**(emin - 1). */␊
219#undef FLT_MIN␊
220#undef DBL_MIN␊
221#undef LDBL_MIN␊
222#define FLT_MIN␉␉__FLT_MIN__␊
223#define DBL_MIN␉␉__DBL_MIN__␊
224#define LDBL_MIN␉__LDBL_MIN__␊
225␊
226/* Addition rounds to 0: zero, 1: nearest, 2: +inf, 3: -inf, -1: unknown. */␊
227/* ??? This is supposed to change with calls to fesetround in <fenv.h>. */␊
228#undef FLT_ROUNDS␊
229#define FLT_ROUNDS 1␊
230␊
231#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L␊
232/* The floating-point expression evaluation method.␊
233 -1 indeterminate␊
234 0 evaluate all operations and constants just to the range and␊
235 precision of the type␊
236 1 evaluate operations and constants of type float and double␊
237 to the range and precision of the double type, evaluate␊
238 long double operations and constants to the range and␊
239 precision of the long double type␊
240 2 evaluate all operations and constants to the range and␊
241 precision of the long double type␊
242␊
243 ??? This ought to change with the setting of the fp control word;␊
244 the value provided by the compiler assumes the widest setting. */␊
245#undef FLT_EVAL_METHOD␊
246#define FLT_EVAL_METHOD␉__FLT_EVAL_METHOD__␊
247␊
248/* Number of decimal digits, n, such that any floating-point number in the␊
249 widest supported floating type with pmax radix b digits can be rounded␊
250 to a floating-point number with n decimal digits and back again without␊
251 change to the value,␊
252␊
253␉pmax * log10(b)␉␉␉if b is a power of 10␊
254␉ceil(1 + pmax * log10(b))␉otherwise␊
255*/␊
256#undef DECIMAL_DIG␊
257#define DECIMAL_DIG␉__DECIMAL_DIG__␊
258␊
259#endif /* C99 */␊
260␊
261#ifdef __cplusplus␊
262extern "C" {␊
263#endif␊
264extern int __fegetfltrounds( void ); ␊
265#ifdef __cplusplus␊
266}␊
267#endif␊
268#undef FLT_ROUNDS␊
269#define FLT_ROUNDS (__fegetfltrounds ())␊
270/* End of GNU CC file */␊
271␊
272/* APPLE LOCAL begin CW compatibility */␊
273/* CodeWarrior defines the following on its own. */␊
274#undef DECIMAL_DIG␊
275/* APPLE LOCAL end CW compatibility */␊
276␊
277#else␊
278#error This file is only for Metrowerks compatibilty.␊
279#endif␊
280␊
281#endif /* _FLOAT_H_ */␊
282

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