endomorphism.hpp

Go to the documentation of this file.

/*
 * Copyright © 2025-2026 Akreon LLC
 * SPDX-License-Identifier: Apache-2.0
 */
 
#pragma once
 
#include "operator_traits.hpp"
 
namespace linalg {
 
template <SquareMatrix Mat, typename Derived>
struct Endomorphism {
  using T = matrix_scalar_t<Mat>;
  using ScalarT = real_type_t<T>;
  using ComplexT = std::complex<ScalarT>;
 
  static constexpr std::size_t N = mat_rows_v<Mat>;
 
  constexpr const T& operator()(std::size_t i, std::size_t j) const {
    return self()(i, j);
  }
 
  constexpr T& operator()(std::size_t i, std::size_t j) { return self()(i, j); }
 
  constexpr Derived& self() { return static_cast<Derived&>(*this); }
 
  constexpr const Derived& self() const {
    return static_cast<const Derived&>(*this);
  }
};
 
} // namespace linalg