hermitian_adapter_type_of.hpp

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/* This file is part of OpenKalman, a header-only C++ library for
 * Kalman filters and other recursive filters.
 *
 * Copyright (c) 2019-2025 Christopher Lee Ogden <ogden@gatech.edu>
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/.
 */

#ifndef OPENKALMAN_HERMITIAN_ADAPTER_TYPE_OF_HPP
#define OPENKALMAN_HERMITIAN_ADAPTER_TYPE_OF_HPP

#include "linear-algebra/enumerations.hpp"
#include "linear-algebra/concepts/hermitian_adapter.hpp"

namespace OpenKalman
{
  template<typename T, typename...Ts>
  struct hermitian_adapter_type_of : std::integral_constant<HermitianAdapterType,
    (hermitian_adapter<T, HermitianAdapterType::lower> and ... and hermitian_adapter<Ts, HermitianAdapterType::lower>) ? HermitianAdapterType::lower :
    (hermitian_adapter<T, HermitianAdapterType::upper> and ... and hermitian_adapter<Ts, HermitianAdapterType::upper>) ? HermitianAdapterType::upper :
    (hermitian_adapter<T> and ... and hermitian_adapter<Ts>) ? HermitianAdapterType::any :
    HermitianAdapterType::none> {};


  template<typename T, typename...Ts>
  constexpr auto hermitian_adapter_type_of_v = hermitian_adapter_type_of<T, Ts...>::value;


}

#endif