marvin_BiquadCoefficients.h

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// This file is part of the Marvin open source library and is licensed under the terms of the MIT License.
//
// ========================================================================================================
 
#ifndef MARVIN_BIQUADCOEFFICIENTS_H
#define MARVIN_BIQUADCOEFFICIENTS_H
#include "marvin/library/marvin_Concepts.h"
namespace marvin::dsp::filters {

    template <FloatType SampleType>
    struct BiquadCoefficients final {
        SampleType a0{ static_cast<SampleType>(0.0) };
        SampleType a1{ static_cast<SampleType>(0.0) };
        SampleType a2{ static_cast<SampleType>(0.0) };
        SampleType b0{ static_cast<SampleType>(0.0) };
        SampleType b1{ static_cast<SampleType>(0.0) };
        SampleType b2{ static_cast<SampleType>(0.0) };
 
        template <FloatType U>
        friend bool operator==(const BiquadCoefficients<SampleType>& a, const BiquadCoefficients<SampleType>& b);
    };

    template <FloatType SampleType>
    bool operator==(const BiquadCoefficients<SampleType>& a, const BiquadCoefficients<SampleType>& b) noexcept {
        return (a.a0 == b.a0) &&
               (a.a1 == b.a1) &&
               (a.a2 == b.a2) &&
               (a.b0 == b.b0) &&
               (a.b1 == b.b1) &&
               (a.b2 == b.b2);
    }

    template <FloatType SampleType>
    bool operator!=(const BiquadCoefficients<SampleType>& a, const BiquadCoefficients<SampleType>& b) noexcept {
        return !(a == b);
    }
} // namespace marvin::dsp::filters
#endif