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Diffstat (limited to 'src/core/constexpr.hh')
| -rw-r--r-- | src/core/constexpr.hh | 191 |
1 files changed, 0 insertions, 191 deletions
diff --git a/src/core/constexpr.hh b/src/core/constexpr.hh deleted file mode 100644 index 0c122e0..0000000 --- a/src/core/constexpr.hh +++ /dev/null @@ -1,191 +0,0 @@ -#ifndef CORE_CONSTEXPR_HH -#define CORE_CONSTEXPR_HH 1 -#pragma once - -#include "core/concepts.hh" - -namespace vx -{ -template<vx::Arithmetic T> -constexpr static inline const T abs(const T x); -template<typename T, std::size_t L> -constexpr static inline const std::size_t array_size(const T (&)[L]); -template<vx::Integer T, vx::FloatingPoint F> -constexpr static inline const T ceil(const F x); -template<vx::Arithmetic T> -constexpr static inline const T degrees(const T x); -template<vx::Integer T, vx::FloatingPoint F> -constexpr static inline const T floor(const F x); -template<vx::Arithmetic T> -constexpr static inline const T clamp(const T x, const T min, const T max); -template<vx::Arithmetic T, vx::FloatingPoint F> -constexpr static inline const T lerp(const T x, const T y, const F a); -template<vx::Arithmetic T> -constexpr static inline const T log2(const T x); -template<vx::Arithmetic T> -constexpr static inline const T max(const T x, const T y); -template<vx::Arithmetic T> -constexpr static inline const T min(const T x, const T y); -template<vx::Integer T> -requires std::is_signed_v<T> -constexpr static inline const T mod_signed(const T x, const T m); -template<vx::Arithmetic T> -constexpr static inline const T pow2(const T x); -template<vx::Arithmetic T> -constexpr static inline const T radians(const T x); -template<vx::Arithmetic T> -constexpr static inline const bool range(const T x, const T min, const T max); -template<vx::Arithmetic T, vx::FloatingPoint F> -constexpr static inline const T sign(const F x); -template<vx::Arithmetic T, vx::FloatingPoint F> -constexpr static inline const T smoothstep(const T x, const T y, const F a); -} // namespace vx - -template<vx::Arithmetic T> -constexpr static inline const T vx::abs(const T x) -{ - if(x < static_cast<T>(0)) { - return -x; - } else { - return x; - } -} - -template<typename T, std::size_t L> -constexpr static inline const std::size_t vx::array_size(const T (&)[L]) -{ - return L; -} - -template<vx::Integer T, vx::FloatingPoint F> -constexpr static inline const T vx::ceil(const F x) -{ - const T ival = static_cast<T>(x); - - if(ival < x) { - return ival + static_cast<T>(1); - } else { - return ival; - } -} - -template<vx::Arithmetic T> -constexpr static inline const T vx::degrees(const T x) -{ - return x * static_cast<T>(180.0) / static_cast<T>(M_PI); -} - -template<vx::Integer T, vx::FloatingPoint F> -constexpr static inline const T vx::floor(const F x) -{ - const T ival = static_cast<T>(x); - - if(ival > x) { - return ival - static_cast<T>(1); - } else { - return ival; - } -} - -template<vx::Arithmetic T> -constexpr static inline const T vx::clamp(const T x, const T min, const T max) -{ - if(x < min) { - return min; - } else if(x > max) { - return max; - } else { - return x; - } -} - -template<vx::Arithmetic T, vx::FloatingPoint F> -constexpr static inline const T vx::lerp(const T x, const T y, const F a) -{ - return static_cast<T>(static_cast<F>(x) * (static_cast<F>(1.0f) - a) + static_cast<F>(y) * a); -} - -template<vx::Arithmetic T> -constexpr static inline const T vx::log2(const T x) -{ - if(x < 2) { - return 0; - } else { - return vx::log2<T>((x + 1) >> 1) + 1; - } -} - -template<vx::Arithmetic T> -constexpr static inline const T vx::max(const T x, const T y) -{ - if(x < y) { - return y; - } else { - return x; - } -} - -template<vx::Arithmetic T> -constexpr static inline const T vx::min(const T x, const T y) -{ - if(x > y) { - return y; - } else { - return x; - } -} - -template<vx::Integer T> -requires std::is_signed_v<T> -constexpr static inline const T vx::mod_signed(const T x, const T m) -{ - auto result = static_cast<T>(x % m); - - if(result < T(0)) { - return result + m; - } else { - return result; - } -} - -template<vx::Arithmetic T> -constexpr static inline const T vx::pow2(const T x) -{ - T value = static_cast<T>(1); - while(value < x) - value *= static_cast<T>(2); - return value; -} - -template<vx::Arithmetic T> -constexpr static inline const T vx::radians(const T x) -{ - return x * static_cast<T>(M_PI) / static_cast<T>(180.0); -} - -template<vx::Arithmetic T> -constexpr static inline const bool vx::range(const T x, const T min, const T max) -{ - return ((x >= min) && (x <= max)); -} - -template<vx::Arithmetic T, vx::FloatingPoint F> -constexpr static inline const T vx::sign(const F x) -{ - if(x < F(0)) { - return T(-1); - } else if(x > F(0)) { - return T(+1); - } else { - return T(0); - } -} - -template<vx::Arithmetic T, vx::FloatingPoint F> -constexpr static inline const T vx::smoothstep(const T x, const T y, const F a) -{ - const F t = vx::clamp<F>((a - x) / (y - x), F(0), F(1)); - return static_cast<T>(t * t * (F(3) - F(2) * t)); -} - -#endif // CORE_CONSTEXPR_HH |
