text: /*
   *  Copyright 2008-2010 NVIDIA Corporation
   *
   *  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.
   */
  
  
  /*! \file distance.h
   *  \brief Defines the interface to a function for
   *         computing the size of an input range.
   */
  
  #pragma once
  
  #include <thrust/detail/config.h>
  #include <thrust/iterator/iterator_traits.h>
  
  namespace thrust
  {
  
  /*! \addtogroup iterators
   *  \{
   */
  
  /*! \p distance finds the distance between \p first and \p last, i.e. the
   *  number of times that \p first must be incremented until it is equal to
   *  \p last.
   *
   *  \param first The beginning of an input range of interest.
   *  \param last The end of an input range of interest.
   *  \return The distance between the beginning and end of the input range.
   *
   *  \tparam InputIterator is a model of <a href="http://www.sgi.com/tech/stl/InputIterator.html">Input Iterator</a>.
   *
   *  \see http://www.sgi.com/tech/stl/distance.html
   */
  template<typename InputIterator>
    inline typename thrust::iterator_traits<InputIterator>::difference_type
      distance(InputIterator first, InputIterator last);
  
  /*! \} // end iterators
   */
  
  } // end thrust
  
  #include <thrust/detail/distance.inl>
  
  