1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
/* SPDX-License-Identifier: BSL-1.0 OR BSD-3-Clause */
#ifndef MPT_BASE_NUMBRES_HPP
#define MPT_BASE_NUMBRES_HPP
#include "mpt/base/detect_compiler.hpp"
#include "mpt/base/namespace.hpp"
#if MPT_CXX_AT_LEAST(20)
#include <numbers>
#else
#include <type_traits>
#include <cmath>
#include <math.h>
#endif
namespace mpt {
inline namespace MPT_INLINE_NS {
namespace numbers {
#if MPT_CXX_AT_LEAST(20)
template <typename T>
inline constexpr T e_v = std::numbers::e_v<T>;
template <typename T>
inline constexpr T log2e_v = std::numbers::log2e_v<T>;
template <typename T>
inline constexpr T log10e_v = std::numbers::log10e_v<T>;
template <typename T>
inline constexpr T pi_v = std::numbers::pi_v<T>;
template <typename T>
inline constexpr T inv_pi_v = std::numbers::inv_pi_v<T>;
template <typename T>
inline constexpr T inv_sqrtpi_v = std::numbers::inv_sqrtpi_v<T>;
template <typename T>
inline constexpr T ln2_v = std::numbers::ln2_v<T>;
template <typename T>
inline constexpr T ln10_v = std::numbers::ln10_v<T>;
template <typename T>
inline constexpr T sqrt2_v = std::numbers::sqrt2_v<T>;
template <typename T>
inline constexpr T sqrt3_v = std::numbers::sqrt3_v<T>;
template <typename T>
inline constexpr T inv_sqrt3_v = std::numbers::inv_sqrt3_v<T>;
template <typename T>
inline constexpr T egamma_v = std::numbers::egamma_v<T>;
template <typename T>
inline constexpr T phi_v = std::numbers::phi_v<T>;
inline constexpr double e = e_v<double>;
inline constexpr double log2e = log2e_v<double>;
inline constexpr double log10e = log10e_v<double>;
inline constexpr double pi = pi_v<double>;
inline constexpr double inv_pi = inv_pi_v<double>;
inline constexpr double inv_sqrtpi = inv_sqrtpi_v<double>;
inline constexpr double ln2 = ln2_v<double>;
inline constexpr double ln10 = ln10_v<double>;
inline constexpr double sqrt2 = sqrt2_v<double>;
inline constexpr double sqrt3 = sqrt3_v<double>;
inline constexpr double inv_sqrt3 = inv_sqrt3_v<double>;
inline constexpr double egamma = egamma_v<double>;
inline constexpr double phi = phi_v<double>;
#else
#ifdef M_E
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T e_v = static_cast<T>(M_E);
#else
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T e_v = static_cast<T>(2.71828182845904523536);
#endif
#ifdef M_LOG2E
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T log2e_v = static_cast<T>(M_LOG2E);
#else
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T log2e_v = static_cast<T>(1.44269504088896340736);
#endif
#ifdef M_LOG10E
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T log10e_v = static_cast<T>(M_LOG10E);
#else
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T log10e_v = static_cast<T>(0.434294481903251827651);
#endif
#ifdef M_PI
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T pi_v = static_cast<T>(M_PI);
#else
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T pi_v = static_cast<T>(3.14159265358979323846);
#endif
#ifdef M_1_PI
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T inv_pi_v = static_cast<T>(M_1_PI);
#else
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T inv_pi_v = static_cast<T>(0.318309886183790671538);
#endif
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T inv_sqrtpi_v = static_cast<T>(0.564189583547756286948079451560772586);
#ifdef M_LN2
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T ln2_v = static_cast<T>(M_LN2);
#else
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T ln2_v = static_cast<T>(0.693147180559945309417);
#endif
#ifdef M_LN10
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T ln10_v = static_cast<T>(M_LN10);
#else
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T ln10_v = static_cast<T>(2.30258509299404568402);
#endif
#ifdef M_SQRT2
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T sqrt2_v = static_cast<T>(M_SQRT2);
#else
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T sqrt2_v = static_cast<T>(1.41421356237309504880);
#endif
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T sqrt3_v = static_cast<T>(1.732050807568877293527446341505872367);
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T inv_sqrt3_v = static_cast<T>(0.577350269189625764509148780501957456);
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T egamma_v = static_cast<T>(0.577215664901532860606512090082402431);
template <typename T, typename std::enable_if<std::is_floating_point<T>::value, bool>::type = true>
inline constexpr T phi_v = static_cast<T>(1.618033988749894848204586834365638118);
inline constexpr double e = e_v<double>;
inline constexpr double log2e = log2e_v<double>;
inline constexpr double log10e = log10e_v<double>;
inline constexpr double pi = pi_v<double>;
inline constexpr double inv_pi = inv_pi_v<double>;
inline constexpr double inv_sqrtpi = inv_sqrtpi_v<double>;
inline constexpr double ln2 = ln2_v<double>;
inline constexpr double ln10 = ln10_v<double>;
inline constexpr double sqrt2 = sqrt2_v<double>;
inline constexpr double sqrt3 = sqrt3_v<double>;
inline constexpr double inv_sqrt3 = inv_sqrt3_v<double>;
inline constexpr double egamma = egamma_v<double>;
inline constexpr double phi = phi_v<double>;
#endif
} // namespace numbers
} // namespace MPT_INLINE_NS
} // namespace mpt
#endif // MPT_BASE_NUMBRES_HPP
|
