1 /*- |
1 /* |
2 * Copyright (c) 1989 Regents of the University of California. |
2 * Copyright (c) 1999 |
3 * All rights reserved. |
3 * Boris Fomitchev |
4 * |
4 * |
5 * Redistribution and use in source and binary forms, with or without |
5 * This material is provided "as is", with absolutely no warranty expressed |
6 * modification, are permitted provided that the following conditions |
6 * or implied. Any use is at your own risk. |
7 * are met: |
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8 * 1. Redistributions of source code must retain the above copyright |
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9 * notice, this list of conditions and the following disclaimer. |
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10 * 2. Redistributions in binary form must reproduce the above copyright |
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11 * notice, this list of conditions and the following disclaimer in the |
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12 * documentation and/or other materials provided with the distribution. |
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13 * 4. Neither the name of the University nor the names of its contributors |
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14 * may be used to endorse or promote products derived from this software |
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15 * without specific prior written permission. |
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16 * |
7 * |
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
8 * Permission to use or copy this software for any purpose is hereby granted |
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
9 * without fee, provided the above notices are retained on all copies. |
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
10 * Permission to modify the code and to distribute modified code is granted, |
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
11 * provided the above notices are retained, and a notice that the code was |
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
12 * modified is included with the above copyright notice. |
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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27 * SUCH DAMAGE. |
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28 * |
13 * |
29 * from: @(#)float.h 7.1 (Berkeley) 5/8/90 |
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30 * $FreeBSD: src/sys/arm/include/float.h,v 1.5 2005/03/20 00:34:24 cognet Exp $ |
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31 */ |
14 */ |
32 |
15 |
33 #ifndef _MACHINE_FLOAT_H_ |
16 #if !defined (_STLP_OUTERMOST_HEADER_ID) |
34 #define _MACHINE_FLOAT_H_ 1 |
17 # define _STLP_OUTERMOST_HEADER_ID 0x203 |
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18 # include <stl/_prolog.h> |
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19 #elif (_STLP_OUTERMOST_HEADER_ID == 0x203) && !defined (_STLP_DONT_POP_HEADER_ID) |
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20 # define _STLP_DONT_POP_HEADER_ID |
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21 #elif (_STLP_OUTERMOST_HEADER_ID == 0x203) |
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22 # error This header is only reentrant once, it should be modified if it has to be included more. |
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23 #endif |
35 |
24 |
36 #include <sys/cdefs.h> |
25 #if defined (_STLP_WCE_EVC3) |
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26 struct _exception; |
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27 #endif |
37 |
28 |
38 __BEGIN_DECLS |
29 #include _STLP_NATIVE_C_HEADER(float.h) |
39 extern int __flt_rounds(void); |
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40 __END_DECLS |
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41 |
30 |
42 #define FLT_RADIX 2 /* b */ |
31 #if defined(__BORLANDC__) && defined (__cplusplus) && (__BORLANDC__ >= 0x560) |
43 #define FLT_ROUNDS -1 |
32 _STLP_BEGIN_NAMESPACE |
44 #define FLT_EVAL_METHOD (-1) /* XXX */ |
33 using ::_max_dble; |
45 #define DECIMAL_DIG 17 /* max precision in decimal digits */ |
34 using ::_max_flt; |
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35 using ::_max_ldble; |
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36 using ::_tiny_ldble; |
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37 _STLP_END_NAMESPACE |
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38 #endif |
46 |
39 |
47 #define FLT_MANT_DIG 24 /* p */ |
40 #if defined (__BORLANDC__) && defined (__cplusplus) && !defined (_STLP_BCC_FPU_BUG) |
48 #define FLT_EPSILON 1.19209290E-07F /* b**(1-p) */ |
41 # define _STLP_BCC_FPU_BUG |
49 #define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */ |
42 // Ignore FPU exceptions, set FPU precision to 53 bits for floatio_test and cmath_test |
50 #define FLT_MIN_EXP (-125) /* emin */ |
43 static unsigned int _bcc_fpu_bug = _control87(PC_53|MCW_EM, MCW_PC|MCW_EM); |
51 #define FLT_MIN 1.17549435E-38F /* b**(emin-1) */ |
44 template <class _Fp> |
52 #define FLT_MIN_10_EXP (-37) /* ceil(log10(b**(emin-1))) */ |
45 int __fpclass(_Fp __val) |
53 #define FLT_MAX_EXP 128 /* emax */ |
46 { int __f = _fpclass(__val); _control87(PC_53|MCW_EM, MCW_PC|MCW_EM); return __f; } |
54 #define FLT_MAX 3.40282347E+38F /* (1-b**(-p))*b**emax */ |
47 # define _fpclass __fpclass |
55 #define FLT_MAX_10_EXP 38 /* floor(log10((1-b**(-p))*b**emax)) */ |
48 #endif |
56 |
49 |
57 #define DBL_MANT_DIG 53 |
50 #if (_STLP_OUTERMOST_HEADER_ID == 0x203) |
58 #define DBL_EPSILON 2.2204460492503131E-16 |
51 # if ! defined (_STLP_DONT_POP_HEADER_ID) |
59 #define DBL_DIG 15 |
52 # include <stl/_epilog.h> |
60 #define DBL_MIN_EXP (-1021) |
53 # undef _STLP_OUTERMOST_HEADER_ID |
61 #define DBL_MIN 2.2250738585072014E-308 |
54 # endif |
62 #define DBL_MIN_10_EXP (-307) |
55 # undef _STLP_DONT_POP_HEADER_ID |
63 #define DBL_MAX_EXP 1024 |
56 #endif |
64 #define DBL_MAX 1.7976931348623157E+308 |
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65 #define DBL_MAX_10_EXP 308 |
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66 |
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67 #define LDBL_MANT_DIG DBL_MANT_DIG |
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68 #define LDBL_EPSILON DBL_EPSILON |
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69 #define LDBL_DIG DBL_DIG |
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70 #define LDBL_MIN_EXP DBL_MIN_EXP |
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71 #define LDBL_MIN DBL_MIN |
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72 #define LDBL_MIN_10_EXP DBL_MIN_10_EXP |
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73 #define LDBL_MAX_EXP DBL_MAX_EXP |
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74 #define LDBL_MAX DBL_MAX |
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75 #define LDBL_MAX_10_EXP DBL_MAX_10_EXP |
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76 #endif /* _MACHINE_FLOAT_H_ */ |
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