dense_cache.hpp

// SPDX-FileCopyrightText: 2017 - 2024 The Ginkgo authors
//
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef GKO_PUBLIC_CORE_BASE_DENSE_CACHE_HPP_
#define GKO_PUBLIC_CORE_BASE_DENSE_CACHE_HPP_
 
 
#include <memory>
 
#include <ginkgo/core/base/executor.hpp>
 
 
namespace gko {
namespace matrix {
 
 
template <typename ValueType>
class Dense;
 
 
}
 
 
namespace detail {
 
 
template <typename ValueType>
struct DenseCache {
    DenseCache() = default;
    ~DenseCache() = default;
    DenseCache(const DenseCache&) {}
    DenseCache(DenseCache&&) noexcept {}
    DenseCache& operator=(const DenseCache&) { return *this; }
    DenseCache& operator=(DenseCache&&) noexcept { return *this; }
    mutable std::unique_ptr<matrix::Dense<ValueType>> vec{};
 
 
    void init_from(const matrix::Dense<ValueType>* template_vec) const;
 
    void init(std::shared_ptr<const Executor> exec, dim<2> size) const;
 
    matrix::Dense<ValueType>& operator*() const { return *vec; }
 
    matrix::Dense<ValueType>* operator->() const { return vec.get(); }
 
    matrix::Dense<ValueType>* get() const { return vec.get(); }
};
 
 
}  // namespace detail
}  // namespace gko
 
 
#endif  // GKO_PUBLIC_CORE_BASE_DENSE_CACHE_HPP_