explicit_param_searcher_base.h

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/*
 * Copyright 2021 MusicScience37 (Kenta Kabashima)
 *
 * 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 "num_collect/regularization/concepts/explicit_regularized_solver.h"
 
namespace num_collect::regularization {
 
template <typename Derived, concepts::explicit_regularized_solver Solver>
class explicit_param_searcher_base {
public:
    using solver_type = Solver;
 
    using scalar_type = typename solver_type::scalar_type;
 
    using data_type = typename solver_type::data_type;
 
    void search() { derived().search(); }
 
    [[nodiscard]] auto opt_param() const -> scalar_type {
        return derived().opt_param();
    }
 
    void solve(data_type& solution) const { derived().solve(solution); }
 
protected:
    [[nodiscard]] auto derived() noexcept -> Derived& {
        return *static_cast<Derived*>(this);
    }
 
    [[nodiscard]] auto derived() const noexcept -> const Derived& {
        return *static_cast<const Derived*>(this);
    }
};
 
}  // namespace num_collect::regularization