NullVector.h

/*
 * Copyright 2020 IFPEN-CEA
 *
 * 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.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#pragma once
 
#include <alien/data/IVector.h>
#include <alien/data/Space.h>
#include <alien/distribution/VectorDistribution.h>
 
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namespace Alien
{
 
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class NullVector final : public IVector
{
 public:
  NullVector();
 
  ~NullVector() {}
 
  NullVector(const NullVector&) = delete;
  NullVector(NullVector&&) = delete;
  NullVector& operator=(NullVector&& vector) = delete;
  NullVector& operator=(const NullVector&) = delete;
 
 public:
  const Space& space() const;
 
  const VectorDistribution& distribution() const;
 
 private:
  // Pour les expressions
  void visit(ICopyOnWriteVector&) const;
 
  MultiVectorImpl* impl();
 
  const MultiVectorImpl* impl() const;
 
 private:
  Space m_space;
  VectorDistribution m_distribution;
};
 
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} // namespace Alien
 
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