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 remove.h
   *  \brief Dispatch layer to the remove functions.
   */
  
  #pragma once
  
  #include <thrust/iterator/iterator_traits.h>
  
  #include <thrust/detail/host/remove.h>
  #include <thrust/detail/device/remove.h>
  
  namespace thrust {
  
  namespace detail {
  
  namespace dispatch {
  
  ////////////////
  // Host Paths //
  ////////////////
  template < typename ForwardIterator,
           typename InputIterator,
           typename Predicate >
  ForwardIterator remove_if(ForwardIterator first,
                            ForwardIterator last,
                            InputIterator stencil,
                            Predicate pred,
                            thrust::host_space_tag,
                            thrust::host_space_tag) {
      return thrust::detail::host::remove_if(first, last, stencil, pred);
  }
  
  template < typename InputIterator,
           typename OutputIterator,
           typename Predicate >
  OutputIterator remove_copy_if(InputIterator first,
                                InputIterator last,
                                OutputIterator result,
                                Predicate pred,
                                thrust::host_space_tag,
                                thrust::host_space_tag) {
      // Note: this version can't be implemented by passing 'first' as the stencil
      // argument of function below as it would violate InputIterator's semantics.
      return thrust::detail::host::remove_copy_if(first, last, result, pred);
  }
  
  template < typename InputIterator1,
           typename InputIterator2,
           typename OutputIterator,
           typename Predicate >
  OutputIterator remove_copy_if(InputIterator1 first,
                                InputIterator1 last,
                                InputIterator2 stencil,
                                OutputIterator result,
                                Predicate pred,
                                thrust::host_space_tag,
                                thrust::host_space_tag,
                                thrust::host_space_tag) {
      return thrust::detail::host::remove_copy_if(first, last, stencil, result, pred);
  }
  
  
  //////////////////
  // Device Paths //
  //////////////////
  template < typename ForwardIterator,
           typename InputIterator,
           typename Predicate >
  ForwardIterator remove_if(ForwardIterator first,
                            ForwardIterator last,
                            InputIterator stencil,
                            Predicate pred,
                            thrust::device_space_tag,
                            thrust::device_space_tag) {
      return thrust::detail::device::remove_if(first, last, stencil, pred);
  }
  
  template < typename InputIterator,
           typename OutputIterator,
           typename Predicate >
  OutputIterator remove_copy_if(InputIterator first,
                                InputIterator last,
                                OutputIterator result,
                                Predicate pred,
                                thrust::device_space_tag,
                                thrust::device_space_tag) {
      // Note: this version can't be implemented by passing 'first' as the stencil
      // argument of function below as it would violate InputIterator's semantics.
      return thrust::detail::device::remove_copy_if(first, last, result, pred);
  }
  
  template < typename InputIterator1,
           typename InputIterator2,
           typename OutputIterator,
           typename Predicate >
  OutputIterator remove_copy_if(InputIterator1 first,
                                InputIterator1 last,
                                InputIterator2 stencil,
                                OutputIterator result,
                                Predicate pred,
                                thrust::device_space_tag,
                                thrust::device_space_tag,
                                thrust::device_space_tag) {
      return thrust::detail::device::remove_copy_if(first, last, stencil, result, pred);
  }
  
  } // end namespace dispatch
  
  } // end namespace detail
  
  } // end namespace thrust
  
  