itkFunctionBase.h

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/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  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
 *
 *         https://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 itkFunctionBase_h
#define itkFunctionBase_h
 
#include "itkObject.h"
#include "itkObjectFactory.h"
 
namespace itk
{
template <typename TInput, typename TOutput>
class ITK_TEMPLATE_EXPORT FunctionBase : public Object
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(FunctionBase);

  using Self = FunctionBase;
  using Superclass = Object;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;

  itkOverrideGetNameOfClassMacro(FunctionBase);

  using InputType = TInput;

  using OutputType = TOutput;

  virtual OutputType
  Evaluate(const InputType & input) const = 0;
 
protected:
  FunctionBase() = default;
  ~FunctionBase() override = default;
};
} // end namespace itk
 
#endif