1 | #ifndef _LIBC_FLOAT_H |
2 | #define _LIBC_FLOAT_H |
3 | |
4 | #define |
5 | #include <bits/libc-header-start.h> |
6 | |
7 | /* Some tests also define this macro, requiring a check here to avoid |
8 | errors for duplicate definitions (see GCC bug 91451). */ |
9 | #if !defined _ISOMAC && !defined __STDC_WANT_IEC_60559_TYPES_EXT__ |
10 | # define __STDC_WANT_IEC_60559_TYPES_EXT__ |
11 | #endif |
12 | |
13 | #include_next <float.h> |
14 | |
15 | /* Supplement float.h macros for _FloatN and _FloatNx for older |
16 | compilers which do not yet support the type. These are described |
17 | in TS 18661-3. */ |
18 | #include <features.h> |
19 | #include <bits/floatn.h> |
20 | #if !__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) |
21 | |
22 | # if __HAVE_FLOAT128 |
23 | # define FLT128_MANT_DIG 113 |
24 | # define FLT128_DECIMAL_DIG 36 |
25 | # define FLT128_DIG 33 |
26 | # define FLT128_MIN_EXP (-16381) |
27 | # define FLT128_MIN_10_EXP (-4931) |
28 | # define FLT128_MAX_EXP 16384 |
29 | # define FLT128_MAX_10_EXP 4932 |
30 | # define FLT128_MAX \ |
31 | __f128 (1.18973149535723176508575932662800702e+4932) |
32 | # define FLT128_EPSILON \ |
33 | __f128 (1.92592994438723585305597794258492732e-34) |
34 | # define FLT128_MIN \ |
35 | __f128 (3.36210314311209350626267781732175260e-4932) |
36 | # define FLT128_TRUE_MIN \ |
37 | __f128 (6.47517511943802511092443895822764655e-4966) |
38 | # endif |
39 | |
40 | /* Types other than _Float128 are typedefs for other types with old |
41 | compilers. */ |
42 | |
43 | # if __HAVE_FLOAT32 |
44 | # define FLT32_MANT_DIG FLT_MANT_DIG |
45 | # define FLT32_DECIMAL_DIG FLT_DECIMAL_DIG |
46 | # define FLT32_DIG FLT_DIG |
47 | # define FLT32_MIN_EXP FLT_MIN_EXP |
48 | # define FLT32_MIN_10_EXP FLT_MIN_10_EXP |
49 | # define FLT32_MAX_EXP FLT_MAX_EXP |
50 | # define FLT32_MAX_10_EXP FLT_MAX_10_EXP |
51 | # define FLT32_MAX FLT_MAX |
52 | # define FLT32_EPSILON FLT_EPSILON |
53 | # define FLT32_MIN FLT_MIN |
54 | # define FLT32_TRUE_MIN FLT_TRUE_MIN |
55 | # endif |
56 | |
57 | # if __HAVE_FLOAT64 |
58 | # define FLT64_MANT_DIG DBL_MANT_DIG |
59 | # define FLT64_DECIMAL_DIG DBL_DECIMAL_DIG |
60 | # define FLT64_DIG DBL_DIG |
61 | # define FLT64_MIN_EXP DBL_MIN_EXP |
62 | # define FLT64_MIN_10_EXP DBL_MIN_10_EXP |
63 | # define FLT64_MAX_EXP DBL_MAX_EXP |
64 | # define FLT64_MAX_10_EXP DBL_MAX_10_EXP |
65 | # define FLT64_MAX DBL_MAX |
66 | # define FLT64_EPSILON DBL_EPSILON |
67 | # define FLT64_MIN DBL_MIN |
68 | # define FLT64_TRUE_MIN DBL_TRUE_MIN |
69 | # endif |
70 | |
71 | # if __HAVE_FLOAT32X |
72 | # define FLT32X_MANT_DIG DBL_MANT_DIG |
73 | # define FLT32X_DECIMAL_DIG DBL_DECIMAL_DIG |
74 | # define FLT32X_DIG DBL_DIG |
75 | # define FLT32X_MIN_EXP DBL_MIN_EXP |
76 | # define FLT32X_MIN_10_EXP DBL_MIN_10_EXP |
77 | # define FLT32X_MAX_EXP DBL_MAX_EXP |
78 | # define FLT32X_MAX_10_EXP DBL_MAX_10_EXP |
79 | # define FLT32X_MAX DBL_MAX |
80 | # define FLT32X_EPSILON DBL_EPSILON |
81 | # define FLT32X_MIN DBL_MIN |
82 | # define FLT32X_TRUE_MIN DBL_TRUE_MIN |
83 | # endif |
84 | |
85 | # if __HAVE_FLOAT64X |
86 | # if __HAVE_FLOAT64X_LONG_DOUBLE |
87 | # define FLT64X_MANT_DIG LDBL_MANT_DIG |
88 | # define FLT64X_DECIMAL_DIG LDBL_DECIMAL_DIG |
89 | # define FLT64X_DIG LDBL_DIG |
90 | # define FLT64X_MIN_EXP LDBL_MIN_EXP |
91 | # define FLT64X_MIN_10_EXP LDBL_MIN_10_EXP |
92 | # define FLT64X_MAX_EXP LDBL_MAX_EXP |
93 | # define FLT64X_MAX_10_EXP LDBL_MAX_10_EXP |
94 | # define FLT64X_MAX LDBL_MAX |
95 | # define FLT64X_EPSILON LDBL_EPSILON |
96 | # define FLT64X_MIN LDBL_MIN |
97 | # define FLT64X_TRUE_MIN LDBL_TRUE_MIN |
98 | # else |
99 | # define FLT64X_MANT_DIG FLT128_MANT_DIG |
100 | # define FLT64X_DECIMAL_DIG FLT128_DECIMAL_DIG |
101 | # define FLT64X_DIG FLT128_DIG |
102 | # define FLT64X_MIN_EXP FLT128_MIN_EXP |
103 | # define FLT64X_MIN_10_EXP FLT128_MIN_10_EXP |
104 | # define FLT64X_MAX_EXP FLT128_MAX_EXP |
105 | # define FLT64X_MAX_10_EXP FLT128_MAX_10_EXP |
106 | # define FLT64X_MAX FLT128_MAX |
107 | # define FLT64X_EPSILON FLT128_EPSILON |
108 | # define FLT64X_MIN FLT128_MIN |
109 | # define FLT64X_TRUE_MIN FLT128_TRUE_MIN |
110 | # endif |
111 | # endif |
112 | |
113 | #endif |
114 | |
115 | #endif /* _LIBC_FLOAT_H */ |
116 | |