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87 lines
1.9 KiB
87 lines
1.9 KiB
/* |
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* Copyright 2008-2012 NVIDIA Corporation |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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/*! \file for_each.h |
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* \brief Sequential implementations of for_each functions. |
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*/ |
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#pragma once |
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#include <thrust/detail/config.h> |
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#include <thrust/detail/function.h> |
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namespace thrust |
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{ |
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namespace system |
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{ |
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namespace detail |
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{ |
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namespace internal |
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{ |
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namespace scalar |
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{ |
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template<typename InputIterator, |
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typename UnaryFunction> |
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InputIterator for_each(InputIterator first, |
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InputIterator last, |
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UnaryFunction f) |
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{ |
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// wrap f |
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thrust::detail::host_function< |
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UnaryFunction, |
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void |
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> wrapped_f(f); |
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for(; first != last; ++first) |
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{ |
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wrapped_f(*first); |
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} |
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return first; |
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} // end for_each() |
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template<typename InputIterator, |
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typename Size, |
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typename UnaryFunction> |
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InputIterator for_each_n(InputIterator first, |
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Size n, |
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UnaryFunction f) |
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{ |
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// wrap f |
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thrust::detail::host_function< |
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UnaryFunction, |
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void |
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> wrapped_f(f); |
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for(Size i = 0; i != n; i++) |
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{ |
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// we can dereference an OutputIterator if f does not |
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// try to use the reference for anything besides assignment |
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wrapped_f(*first); |
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++first; |
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} |
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return first; |
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} // end for_each_n() |
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} // end namespace scalar |
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} // end namespace internal |
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} // end namespace detail |
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} // end namespace system |
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} // end namespace thrust |
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