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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 itkImageRegionConstIteratorWithOnlyIndex_hxx
#define itkImageRegionConstIteratorWithOnlyIndex_hxx
namespace itk
{
//----------------------------------------------------------------------
// Advance along the line
//----------------------------------------------------------------------
template <typename TImage>
ImageRegionConstIteratorWithOnlyIndex<TImage> &
ImageRegionConstIteratorWithOnlyIndex<TImage>::operator++()
{
this->m_Remaining = false;
for (unsigned int in = 0; in < TImage::ImageDimension; ++in)
{
this->m_PositionIndex[in]++;
if (this->m_PositionIndex[in] < this->m_EndIndex[in])
{
this->m_Remaining = true;
break;
}
else
{
this->m_PositionIndex[in] = this->m_BeginIndex[in];
}
}
return *this;
}
//----------------------------------------------------------------------
// Advance along the line in reverse direction
//----------------------------------------------------------------------
template <typename TImage>
ImageRegionConstIteratorWithOnlyIndex<TImage> &
ImageRegionConstIteratorWithOnlyIndex<TImage>::operator--()
{
this->m_Remaining = false;
for (unsigned int in = 0; in < TImage::ImageDimension; ++in)
{
if (this->m_PositionIndex[in] > this->m_BeginIndex[in])
{
this->m_PositionIndex[in]--;
this->m_Remaining = true;
break;
}
else
{
this->m_PositionIndex[in] = this->m_EndIndex[in] - 1;
}
}
return *this;
}
} // end namespace itk
#endif
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