Warning: This file is not a C or C++ file. It does not have highlighting.
1 | /*===---- float.h - Characteristics of floating point types ----------------=== |
---|---|
2 | * |
3 | * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | * See https://llvm.org/LICENSE.txt for license information. |
5 | * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | * |
7 | *===-----------------------------------------------------------------------=== |
8 | */ |
9 | |
10 | #ifndef __CLANG_FLOAT_H |
11 | #define __CLANG_FLOAT_H |
12 | |
13 | /* If we're on MinGW, fall back to the system's float.h, which might have |
14 | * additional definitions provided for Windows. |
15 | * For more details see http://msdn.microsoft.com/en-us/library/y0ybw9fy.aspx |
16 | * |
17 | * Also fall back on Darwin and AIX to allow additional definitions and |
18 | * implementation-defined values. |
19 | */ |
20 | #if (defined(__APPLE__) || defined(__MINGW32__) || defined(_MSC_VER) || \ |
21 | defined(_AIX)) && \ |
22 | __STDC_HOSTED__ && __has_include_next(<float.h>) |
23 | |
24 | /* Prior to Apple's 10.7 SDK, float.h SDK header used to apply an extra level |
25 | * of #include_next<float.h> to keep Metrowerks compilers happy. Avoid this |
26 | * extra indirection. |
27 | */ |
28 | #ifdef __APPLE__ |
29 | #define _FLOAT_H_ |
30 | #endif |
31 | |
32 | # include_next <float.h> |
33 | |
34 | /* Undefine anything that we'll be redefining below. */ |
35 | # undef FLT_EVAL_METHOD |
36 | # undef FLT_ROUNDS |
37 | # undef FLT_RADIX |
38 | # undef FLT_MANT_DIG |
39 | # undef DBL_MANT_DIG |
40 | # undef LDBL_MANT_DIG |
41 | #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \ |
42 | !defined(__STRICT_ANSI__) || \ |
43 | (defined(__cplusplus) && __cplusplus >= 201103L) || \ |
44 | (__STDC_HOSTED__ && defined(_AIX) && defined(_ALL_SOURCE)) |
45 | # undef DECIMAL_DIG |
46 | # endif |
47 | # undef FLT_DIG |
48 | # undef DBL_DIG |
49 | # undef LDBL_DIG |
50 | # undef FLT_MIN_EXP |
51 | # undef DBL_MIN_EXP |
52 | # undef LDBL_MIN_EXP |
53 | # undef FLT_MIN_10_EXP |
54 | # undef DBL_MIN_10_EXP |
55 | # undef LDBL_MIN_10_EXP |
56 | # undef FLT_MAX_EXP |
57 | # undef DBL_MAX_EXP |
58 | # undef LDBL_MAX_EXP |
59 | # undef FLT_MAX_10_EXP |
60 | # undef DBL_MAX_10_EXP |
61 | # undef LDBL_MAX_10_EXP |
62 | # undef FLT_MAX |
63 | # undef DBL_MAX |
64 | # undef LDBL_MAX |
65 | # undef FLT_EPSILON |
66 | # undef DBL_EPSILON |
67 | # undef LDBL_EPSILON |
68 | # undef FLT_MIN |
69 | # undef DBL_MIN |
70 | # undef LDBL_MIN |
71 | #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) || \ |
72 | !defined(__STRICT_ANSI__) || \ |
73 | (defined(__cplusplus) && __cplusplus >= 201703L) || \ |
74 | (__STDC_HOSTED__ && defined(_AIX) && defined(_ALL_SOURCE)) |
75 | # undef FLT_TRUE_MIN |
76 | # undef DBL_TRUE_MIN |
77 | # undef LDBL_TRUE_MIN |
78 | # undef FLT_DECIMAL_DIG |
79 | # undef DBL_DECIMAL_DIG |
80 | # undef LDBL_DECIMAL_DIG |
81 | # undef FLT_HAS_SUBNORM |
82 | # undef DBL_HAS_SUBNORM |
83 | # undef LDBL_HAS_SUBNORM |
84 | # endif |
85 | #endif |
86 | |
87 | /* Characteristics of floating point types, C99 5.2.4.2.2 */ |
88 | |
89 | #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \ |
90 | (defined(__cplusplus) && __cplusplus >= 201103L) |
91 | #define FLT_EVAL_METHOD __FLT_EVAL_METHOD__ |
92 | #endif |
93 | #define FLT_ROUNDS (__builtin_flt_rounds()) |
94 | #define FLT_RADIX __FLT_RADIX__ |
95 | |
96 | #define FLT_MANT_DIG __FLT_MANT_DIG__ |
97 | #define DBL_MANT_DIG __DBL_MANT_DIG__ |
98 | #define LDBL_MANT_DIG __LDBL_MANT_DIG__ |
99 | |
100 | #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \ |
101 | !defined(__STRICT_ANSI__) || \ |
102 | (defined(__cplusplus) && __cplusplus >= 201103L) || \ |
103 | (__STDC_HOSTED__ && defined(_AIX) && defined(_ALL_SOURCE)) |
104 | # define DECIMAL_DIG __DECIMAL_DIG__ |
105 | #endif |
106 | |
107 | #define FLT_DIG __FLT_DIG__ |
108 | #define DBL_DIG __DBL_DIG__ |
109 | #define LDBL_DIG __LDBL_DIG__ |
110 | |
111 | #define FLT_MIN_EXP __FLT_MIN_EXP__ |
112 | #define DBL_MIN_EXP __DBL_MIN_EXP__ |
113 | #define LDBL_MIN_EXP __LDBL_MIN_EXP__ |
114 | |
115 | #define FLT_MIN_10_EXP __FLT_MIN_10_EXP__ |
116 | #define DBL_MIN_10_EXP __DBL_MIN_10_EXP__ |
117 | #define LDBL_MIN_10_EXP __LDBL_MIN_10_EXP__ |
118 | |
119 | #define FLT_MAX_EXP __FLT_MAX_EXP__ |
120 | #define DBL_MAX_EXP __DBL_MAX_EXP__ |
121 | #define LDBL_MAX_EXP __LDBL_MAX_EXP__ |
122 | |
123 | #define FLT_MAX_10_EXP __FLT_MAX_10_EXP__ |
124 | #define DBL_MAX_10_EXP __DBL_MAX_10_EXP__ |
125 | #define LDBL_MAX_10_EXP __LDBL_MAX_10_EXP__ |
126 | |
127 | #define FLT_MAX __FLT_MAX__ |
128 | #define DBL_MAX __DBL_MAX__ |
129 | #define LDBL_MAX __LDBL_MAX__ |
130 | |
131 | #define FLT_EPSILON __FLT_EPSILON__ |
132 | #define DBL_EPSILON __DBL_EPSILON__ |
133 | #define LDBL_EPSILON __LDBL_EPSILON__ |
134 | |
135 | #define FLT_MIN __FLT_MIN__ |
136 | #define DBL_MIN __DBL_MIN__ |
137 | #define LDBL_MIN __LDBL_MIN__ |
138 | |
139 | #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) || \ |
140 | !defined(__STRICT_ANSI__) || \ |
141 | (defined(__cplusplus) && __cplusplus >= 201703L) || \ |
142 | (__STDC_HOSTED__ && defined(_AIX) && defined(_ALL_SOURCE)) |
143 | # define FLT_TRUE_MIN __FLT_DENORM_MIN__ |
144 | # define DBL_TRUE_MIN __DBL_DENORM_MIN__ |
145 | # define LDBL_TRUE_MIN __LDBL_DENORM_MIN__ |
146 | # define FLT_DECIMAL_DIG __FLT_DECIMAL_DIG__ |
147 | # define DBL_DECIMAL_DIG __DBL_DECIMAL_DIG__ |
148 | # define LDBL_DECIMAL_DIG __LDBL_DECIMAL_DIG__ |
149 | # define FLT_HAS_SUBNORM __FLT_HAS_DENORM__ |
150 | # define DBL_HAS_SUBNORM __DBL_HAS_DENORM__ |
151 | # define LDBL_HAS_SUBNORM __LDBL_HAS_DENORM__ |
152 | #endif |
153 | |
154 | #ifdef __STDC_WANT_IEC_60559_TYPES_EXT__ |
155 | # define FLT16_MANT_DIG __FLT16_MANT_DIG__ |
156 | # define FLT16_DECIMAL_DIG __FLT16_DECIMAL_DIG__ |
157 | # define FLT16_DIG __FLT16_DIG__ |
158 | # define FLT16_MIN_EXP __FLT16_MIN_EXP__ |
159 | # define FLT16_MIN_10_EXP __FLT16_MIN_10_EXP__ |
160 | # define FLT16_MAX_EXP __FLT16_MAX_EXP__ |
161 | # define FLT16_MAX_10_EXP __FLT16_MAX_10_EXP__ |
162 | # define FLT16_MAX __FLT16_MAX__ |
163 | # define FLT16_EPSILON __FLT16_EPSILON__ |
164 | # define FLT16_MIN __FLT16_MIN__ |
165 | # define FLT16_TRUE_MIN __FLT16_TRUE_MIN__ |
166 | #endif /* __STDC_WANT_IEC_60559_TYPES_EXT__ */ |
167 | |
168 | #endif /* __CLANG_FLOAT_H */ |
169 |
Warning: This file is not a C or C++ file. It does not have highlighting.