common/math_defs.h

   1 #ifndef AL_MATH_DEFS_H
   2 #define AL_MATH_DEFS_H
   3
   4 #include <math.h>
   5
   6 constexpr inline float Deg2Rad(float x) noexcept { return x * 1.74532925199432955e-02f/*pi/180*/; }
   7 constexpr inline float Rad2Deg(float x) noexcept { return x * 5.72957795130823229e+01f/*180/pi*/; }
   8
   9 namespace al {
  10
  11 template<typename Real>
  12 struct MathDefs { };
  13
  14 template<>
  15 struct MathDefs<float> {
  16     static constexpr inline float Pi() noexcept { return 3.14159265358979323846e+00f; }
  17     static constexpr inline float Tau() noexcept { return 6.28318530717958647692e+00f; }
  18 };
  19
  20 template<>
  21 struct MathDefs<double> {
  22     static constexpr inline double Pi() noexcept { return 3.14159265358979323846e+00; }
  23     static constexpr inline double Tau() noexcept { return 6.28318530717958647692e+00; }
  24 };
  25
  26 } // namespace al
  27
  28 #endif /* AL_MATH_DEFS_H */