constants.hpp

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// sbl/dsp/math/constants.hpp — The numbers every layer reaches for
//
// One definition of pi for the whole audio stack, so no header carries its
// own literal (style guide: no magic numbers; RPT-032 D3 / backlog #48).
 
#ifndef SBL_DSP_MATH_CONSTANTS_HPP_
#define SBL_DSP_MATH_CONSTANTS_HPP_
 
namespace sbl::dsp::math {
 
inline constexpr float PI = 3.14159265358979323846f;
inline constexpr float TWO_PI = 2.0f * PI;
inline constexpr float HALF_PI = 0.5f * PI;
 
/// The phase accumulator's full range: uint32_t [0, 2^32) is one cycle.
inline constexpr float PHASE_ACCUMULATOR_RANGE = 4294967296.0f;
 
} // namespace sbl::dsp::math
 
#endif // SBL_DSP_MATH_CONSTANTS_HPP_