jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * Copyright (c) 2021, Mițca Dumitru <dumitru0mitca@gmail.com>
4 *
5 * SPDX-License-Identifier: BSD-2-Clause
6 */
7
8#pragma once
9
10// Defined in fenv.cpp, but we must not include fenv.h, so here's its prototype.
11int fegetround(void);
12
13#define FLT_RADIX 2
14#define DECIMAL_DIG 21
15#define FLT_DECIMAL_DIG 9
16#define DBL_DECIMAL_DIG 17
17#define LDBL_DECIMAL_DIG 21
18#define FLT_MIN 1.17549e-38
19#define DBL_MIN 2.22507e-308
20#define LDBL_MIN 3.3621e-4932
21#define FLT_TRUE_MIN 1.4013e-45
22#define DBL_TRUE_MIN 4.94066e-324
23#define LDBL_TRUE_MIN 3.6452e-4951
24#define FLT_MAX 3.40282e+38
25#define DBL_MAX 1.79769e+308
26#define LDBL_MAX 1.18973e+4932
27#define FLT_EPSILON 1.19209e-07
28#define DBL_EPSILON 2.22045e-16
29#define LDBL_EPSILON 1.0842e-19
30#define FLT_DIG 6
31#define DBL_DIG 15
32#define LDBL_DIG 18
33#define FLT_MANT_DIG 24
34#define DBL_MANT_DIG 53
35#define LDBL_MANT_DIG 64
36#define FLT_MIN_EXP -125
37#define DBL_MIN_EXP -1021
38#define LDBL_MIN_EXP -16381
39#define FLT_MIN_10_EXP -37
40#define DBL_MIN_10_EXP -307
41#define LDBL_MIN_10_EXP -4931
42#define FLT_MAX_EXP 128
43#define DBL_MAX_EXP 1024
44#define LDBL_MAX_EXP 16384
45#define FLT_MAX_10_EXP 38
46#define DBL_MAX_10_EXP 308
47#define LDBL_MAX_10_EXP 4932
48
49#define FLT_ROUNDS (fegetround()) // Note: this not might be true for non-x86 platforms
50
51#define FLT_HAS_SUBNORM 1
52#define DBL_HAS_SUBNORM 1
53#define LDBL_HAS_SUBNORM 1