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