mat3.h (Latest change: Author:Lakshman Anumolu <acrlakshman@yahoo.co.in>, 2019-07-21 09:04:10 -0500, [commit: 9635e15])

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// Copyright 2019 Lakshman Anumolu, Raunak Bardia.
//
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// modification, are permitted provided that the following conditions are
// met:
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#pragma once

#include <iostream>

#include "gals/utilities/vec3.h"

namespace GALS
{
namespace CPU
{
template <typename T>
class Mat3
{
 public:
  using value_type = T;

  static constexpr int SIZE = 9;

  Mat3(T a00, T a01, T a02, T a10, T a11, T a12, T a20, T a21, T a22);

  Mat3();

  ~Mat3();

  const int size() const;

  const Vec3<T> dot(const Vec3<T> vec) const;

  const T operator[](const int idx) const;

  T &operator[](const int idx);

  const T operator()(const int i_row, const int i_col) const;

  T &operator()(const int i_row, const int i_col);

  void operator=(const Mat3<T> &mat);

  const Mat3<T> operator-(const Mat3<T> &mat) const;

  const Mat3<T> operator*(const T var) const;

  bool operator==(const Mat3<T> &mat) const;

  friend std::ostream &operator<<(std::ostream &out, const Mat3<T> &mat)
  {
    for (int i = 0; i < mat.size(); ++i) out << mat[i] << "\t";

    return out;
  }

 private:
  T m_data[SIZE];
};

}  // namespace CPU
}  // namespace GALS