29#ifndef _GLIBCXX_NUMBERS
30#define _GLIBCXX_NUMBERS 1
32#pragma GCC system_header
34#if __cplusplus > 201703L
38namespace std _GLIBCXX_VISIBILITY(default)
40_GLIBCXX_BEGIN_NAMESPACE_VERSION
50#define __cpp_lib_math_constants 201907L
53 template<
typename _Tp>
58 template<
typename _Tp>
59 inline constexpr _Tp
e_v
60 = _Enable_if_floating<_Tp>(2.718281828459045235360287471352662498L);
63 template<
typename _Tp>
65 = _Enable_if_floating<_Tp>(1.442695040888963407359924681001892137L);
68 template<
typename _Tp>
70 = _Enable_if_floating<_Tp>(0.434294481903251827651128918916605082L);
73 template<
typename _Tp>
75 = _Enable_if_floating<_Tp>(3.141592653589793238462643383279502884L);
78 template<
typename _Tp>
80 = _Enable_if_floating<_Tp>(0.318309886183790671537767526745028724L);
83 template<
typename _Tp>
85 = _Enable_if_floating<_Tp>(0.564189583547756286948079451560772586L);
88 template<
typename _Tp>
90 = _Enable_if_floating<_Tp>(0.693147180559945309417232121458176568L);
93 template<
typename _Tp>
95 = _Enable_if_floating<_Tp>(2.302585092994045684017991454684364208L);
98 template<
typename _Tp>
100 = _Enable_if_floating<_Tp>(1.414213562373095048801688724209698079L);
103 template<
typename _Tp>
105 = _Enable_if_floating<_Tp>(1.732050807568877293527446341505872367L);
108 template<
typename _Tp>
110 = _Enable_if_floating<_Tp>(0.577350269189625764509148780501957456L);
113 template<
typename _Tp>
115 = _Enable_if_floating<_Tp>(0.577215664901532860606512090082402431L);
118 template<
typename _Tp>
120 = _Enable_if_floating<_Tp>(1.618033988749894848204586834365638118L);
122 inline constexpr double e = e_v<double>;
123 inline constexpr double log2e = log2e_v<double>;
124 inline constexpr double log10e = log10e_v<double>;
125 inline constexpr double pi = pi_v<double>;
126 inline constexpr double inv_pi = inv_pi_v<double>;
127 inline constexpr double inv_sqrtpi = inv_sqrtpi_v<double>;
128 inline constexpr double ln2 = ln2_v<double>;
129 inline constexpr double ln10 = ln10_v<double>;
130 inline constexpr double sqrt2 = sqrt2_v<double>;
131 inline constexpr double sqrt3 = sqrt3_v<double>;
132 inline constexpr double inv_sqrt3 = inv_sqrt3_v<double>;
133 inline constexpr double egamma = egamma_v<double>;
134 inline constexpr double phi = phi_v<double>;
136#define __glibcxx_numbers(TYPE, SUFFIX) \
139 inline constexpr TYPE e_v<TYPE> \
140 = 2.718281828459045235360287471352662498##SUFFIX; \
144 inline constexpr TYPE log2e_v<TYPE> \
145 = 1.442695040888963407359924681001892137##SUFFIX; \
149 inline constexpr TYPE log10e_v<TYPE> \
150 = 0.434294481903251827651128918916605082##SUFFIX; \
154 inline constexpr TYPE pi_v<TYPE> \
155 = 3.141592653589793238462643383279502884##SUFFIX; \
159 inline constexpr TYPE inv_pi_v<TYPE> \
160 = 0.318309886183790671537767526745028724##SUFFIX; \
164 inline constexpr TYPE inv_sqrtpi_v<TYPE> \
165 = 0.564189583547756286948079451560772586##SUFFIX; \
169 inline constexpr TYPE ln2_v<TYPE> \
170 = 0.693147180559945309417232121458176568##SUFFIX; \
174 inline constexpr TYPE ln10_v<TYPE> \
175 = 2.302585092994045684017991454684364208##SUFFIX; \
179 inline constexpr TYPE sqrt2_v<TYPE> \
180 = 1.414213562373095048801688724209698079##SUFFIX; \
184 inline constexpr TYPE sqrt3_v<TYPE> \
185 = 1.732050807568877293527446341505872367##SUFFIX; \
189 inline constexpr TYPE inv_sqrt3_v<TYPE> \
190 = 0.577350269189625764509148780501957456##SUFFIX; \
194 inline constexpr TYPE egamma_v<TYPE> \
195 = 0.577215664901532860606512090082402431##SUFFIX; \
199 inline constexpr TYPE phi_v<TYPE> \
200 = 1.618033988749894848204586834365638118##SUFFIX
202#ifdef __STDCPP_FLOAT16_T__
203__glibcxx_numbers (_Float16, F16);
206#ifdef __STDCPP_FLOAT32_T__
207__glibcxx_numbers (_Float32, F32);
210#ifdef __STDCPP_FLOAT64_T__
211__glibcxx_numbers (_Float64, F64);
214#ifdef __STDCPP_FLOAT128_T__
215__glibcxx_numbers (_Float128, F128);
218#ifdef __STDCPP_BFLOAT128_T__
219__glibcxx_numbers (__gnu_cxx::__bfloat16_t, BF16);
222#if !defined(__STRICT_ANSI__) && defined(_GLIBCXX_USE_FLOAT128) && !defined(__CUDACC__)
223__glibcxx_numbers (__float128, Q);
226#undef __glibcxx_numbers
230_GLIBCXX_END_NAMESPACE_VERSION
typename enable_if< _Cond, _Tp >::type enable_if_t
Alias template for enable_if.
ISO C++ entities toplevel namespace is std.
constexpr _Tp inv_sqrtpi_v
1/sqrt(pi)
constexpr _Tp log10e_v
log_10 e
constexpr _Tp inv_sqrt3_v
1/sqrt(3)
constexpr _Tp log2e_v
log_2 e
constexpr _Tp ln2_v
log_e 2
constexpr _Tp sqrt2_v
sqrt(2)
constexpr _Tp ln10_v
log_e 10
constexpr _Tp phi_v
The golden ratio, (1+sqrt(5))/2.
constexpr _Tp inv_pi_v
1/pi
constexpr _Tp egamma_v
The Euler-Mascheroni constant.
constexpr _Tp sqrt3_v
sqrt(3)