itkStdStreamStateSave.h

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/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  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.txt
 *
 *  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.
 *
 *=========================================================================*/
#ifndef itkStdStreamStateSave_h
#define itkStdStreamStateSave_h

#include <iostream>
#include <string>
#include "itkMacro.h"

namespace itk
{
class StdStreamStateSave
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(StdStreamStateSave);

  explicit StdStreamStateSave(std::ios& stream) :
    m_Ios(stream),
    m_State(nullptr)
  {
    m_State.copyfmt(stream);
  }
  ~StdStreamStateSave()
  {
    m_Ios.copyfmt(m_State);
  }

private:
  std::ios& m_Ios;
  std::ios  m_State;
};
}

#endif