61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
/**
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This file is a part of our_dick
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Copyright (C) 2020 rexy712
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef REXY_DETAIL_MATH_HPP
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#define REXY_DETAIL_MATH_HPP
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namespace math{
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namespace detail{
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//sentinel classes saying how to initialize some math classes
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struct zero_initialize_t {};
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struct no_initialize_t {};
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struct id_initialize_t {};
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struct manual_initialize_t {};
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}
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//instantiation of sentinels
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static inline constexpr detail::zero_initialize_t zero_initialize;
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static inline constexpr detail::no_initialize_t no_initialize;
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static inline constexpr detail::id_initialize_t id_initialize;
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static inline constexpr detail::manual_initialize_t manual_initialize;
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template<typename T>
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static constexpr T pi(){
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return static_cast<T>(3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821);
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}
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template<typename T>
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static constexpr T to_degrees(T t){
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return (t * 180.0) / pi<T>();
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}
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template<typename T>
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static constexpr T to_radians(T t){
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return (t * pi<T>()) / 180.0;
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}
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constexpr long double operator"" _rad(long double f){
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return f;
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}
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constexpr long double operator"" _deg(long double f){
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return to_radians(f);
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}
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}
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#endif
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