system.hpp

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//    Copyright 2023 Jij Inc.
 
//    Licensed under the Apache License, Version 2.0 (the "License");
//    you may not use this file except in compliance with the License.
//    You may obtain a copy of the License at
 
//        http://www.apache.org/licenses/LICENSE-2.0
 
//    Unless required by applicable law or agreed to in writing, software
//    distributed under the License is distributed on an "AS IS" BASIS,
//    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//    See the License for the specific language governing permissions and
//    limitations under the License.
 
#pragma once
 
#include "openjij/utility/type_traits.hpp"
 
namespace openjij {
namespace system {
 
struct mc_system {};
 
struct classical_system : public mc_system {};
 
struct classical_constraint_system : public mc_system {};
 
struct quantum_system : public mc_system {};
 
struct transverse_field_system : public quantum_system {};
 
struct inhomogeneous_transverse_field_system : public quantum_system {};
 
struct nonstoquastic_system : public quantum_system {};
 
struct single_command_system {};
 
struct realtime_dynamics_system {};
 
template <typename System> struct get_system_type {
  using type = typename System::system_type;
};
 
template <typename System> struct get_classical_or_quantum_system_type {
  using type =
      typename utility::get_base_class<typename System::system_type,
                                       classical_system, quantum_system>::type;
};
 
template <typename System> struct get_base_system_type {
  using type =
      typename utility::get_base_class<typename System::system_type, mc_system,
                                       single_command_system,
                                       realtime_dynamics_system>::type;
};
 
constexpr static bool USE_EIGEN = true;
 
} // namespace system
} // namespace openjij