55 #ifndef _GLIBCXX_NUMERIC 56 #define _GLIBCXX_NUMERIC 1 58 #pragma GCC system_header 64 #ifdef _GLIBCXX_PARALLEL 76 #if __cplusplus >= 201402L 79 namespace std _GLIBCXX_VISIBILITY(default)
81 _GLIBCXX_BEGIN_NAMESPACE_VERSION
86 template<
typename _Tp>
88 enable_if_t<__and_<is_integral<_Tp>, is_signed<_Tp>>::value, _Tp>
89 __abs_integral(_Tp __val)
90 {
return __val < 0 ? -__val : __val; }
92 template<
typename _Tp>
94 enable_if_t<__and_<is_integral<_Tp>, is_unsigned<_Tp>>::value, _Tp>
95 __abs_integral(_Tp __val)
98 void __abs_integral(
bool) =
delete;
100 template<
typename _Mn,
typename _Nn>
101 constexpr common_type_t<_Mn, _Nn>
102 __gcd(_Mn __m, _Nn __n)
104 return __m == 0 ? __detail::__abs_integral(__n)
105 : __n == 0 ? __detail::__abs_integral(__m)
106 : __detail::__gcd(__n, __m % __n);
110 template<
typename _Mn,
typename _Nn>
111 constexpr common_type_t<_Mn, _Nn>
114 return (__m != 0 && __n != 0)
115 ? (__detail::__abs_integral(__m) / __detail::__gcd(__m, __n))
116 * __detail::__abs_integral(__n)
121 #if __cplusplus >= 201703L 123 #define __cpp_lib_gcd_lcm 201606 125 #define __cpp_lib_gcd 201606 126 #define __cpp_lib_lcm 201606 129 template<
typename _Mn,
typename _Nn>
131 gcd(_Mn __m, _Nn __n)
133 static_assert(is_integral_v<_Mn>,
"gcd arguments are integers");
134 static_assert(is_integral_v<_Nn>,
"gcd arguments are integers");
136 "gcd arguments are not bools");
138 "gcd arguments are not bools");
139 return __detail::__gcd(__m, __n);
143 template<
typename _Mn,
typename _Nn>
145 lcm(_Mn __m, _Nn __n)
147 static_assert(is_integral_v<_Mn>,
"lcm arguments are integers");
148 static_assert(is_integral_v<_Nn>,
"lcm arguments are integers");
150 "lcm arguments are not bools");
152 "lcm arguments are not bools");
158 _GLIBCXX_END_NAMESPACE_VERSION
163 #if __cplusplus > 201703L 166 namespace std _GLIBCXX_VISIBILITY(default)
168 _GLIBCXX_BEGIN_NAMESPACE_VERSION
170 # define __cpp_lib_interpolate 201902L 172 template<
typename _Tp>
175 __not_<is_same<_Tp, bool>>>,
177 midpoint(_Tp __a, _Tp __b) noexcept
179 if constexpr (is_integral_v<_Tp>)
192 return __a + __k * _Tp(_Up(__M - __m) / 2);
198 const _Tp __abs_a = __a < 0 ? -__a : __a;
199 const _Tp __abs_b = __b < 0 ? -__b : __b;
200 if (__abs_a <= __hi && __abs_b <= __hi) [[likely]]
201 return (__a + __b) / 2;
206 return __a/2 + __b/2;
210 template<
typename _Tp>
213 midpoint(_Tp* __a, _Tp* __b) noexcept
215 return __a + (__b - __a) / 2;
217 _GLIBCXX_END_NAMESPACE_VERSION
222 #if __cplusplus > 201402L 224 # if __PSTL_EXECUTION_POLICIES_DEFINED 226 # include <pstl/glue_numeric_impl.h> 229 # include <pstl/glue_numeric_defs.h> 230 # define __PSTL_NUMERIC_FORWARD_DECLARED 1 234 # define __cpp_lib_parallel_algorithm 201603L typename enable_if< _Cond, _Tp >::type enable_if_t
Alias template for enable_if.
static constexpr _Tp min() noexcept
ISO C++ entities toplevel namespace is std.
Parallel STL function calls corresponding to stl_numeric.h. The functions defined here mainly do case...
typename remove_cv< _Tp >::type remove_cv_t
Alias template for remove_cv.
constexpr common_type_t< _Mn, _Nn > __lcm(_Mn __m, _Nn __n)
Least common multiple.
typename make_unsigned< _Tp >::type make_unsigned_t
Alias template for make_unsigned.
static constexpr _Tp max() noexcept
typename common_type< _Tp... >::type common_type_t
Alias template for common_type.