text: /*=========================================================================
   *
   *  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.
   *
   *=========================================================================*/
  #if defined(_MSC_VER)
  #pragma warning ( disable : 4786 )
  #endif
  
  #include "itkHeavisideStepFunction.h"
  #include "itkTestingMacros.h"
  
  int itkHeavisideStepFunctionTest1( int, char* [] )
  {
    typedef double    InputType;
    typedef double    OutputType;
  
    typedef itk::HeavisideStepFunction< InputType, OutputType >  HeavisideFunctionBaseType;
  
    HeavisideFunctionBaseType::Pointer functionBase0 = HeavisideFunctionBaseType::New();
  
    std::cout << "GetNameOfClass() = " << functionBase0->GetNameOfClass() << std::endl;
    functionBase0->Print( std::cout );
  
    const signed int minValue = -20;
    const signed int maxValue =  20;
  
    const InputType incValue = 0.1;
  
    for( signed int x = minValue; x < maxValue; x++ )
      {
      const InputType ix = x * incValue;
      OutputType f  = functionBase0->Evaluate( ix );
      OutputType df = functionBase0->EvaluateDerivative( ix );
      std::cout << ix << " " << f << " " << df << std::endl;
      }
  
    return EXIT_SUCCESS;
  }
  