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48 lines
1.7 KiB
C++
48 lines
1.7 KiB
C++
//---------------------------------------------------------------------------//
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// Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
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//
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// Distributed under the Boost Software License, Version 1.0
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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// See http://boostorg.github.com/compute for more information.
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//---------------------------------------------------------------------------//
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#ifndef BOOST_COMPUTE_ALGORITHM_REMOVE_IF_HPP
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#define BOOST_COMPUTE_ALGORITHM_REMOVE_IF_HPP
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#include <boost/compute/system.hpp>
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#include <boost/compute/algorithm/copy_if.hpp>
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#include <boost/compute/container/vector.hpp>
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#include <boost/compute/functional/logical.hpp>
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namespace boost {
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namespace compute {
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/// Removes each element for which \p predicate returns \c true in the
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/// range [\p first, \p last).
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///
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/// \see remove()
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template<class Iterator, class Predicate>
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inline Iterator remove_if(Iterator first,
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Iterator last,
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Predicate predicate,
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command_queue &queue = system::default_queue())
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{
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typedef typename std::iterator_traits<Iterator>::value_type value_type;
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// temporary storage for the input data
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::boost::compute::vector<value_type> tmp(first, last, queue);
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return ::boost::compute::copy_if(tmp.begin(),
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tmp.end(),
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first,
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not1(predicate),
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queue);
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}
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} // end compute namespace
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} // end boost namespace
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#endif // BOOST_COMPUTE_ALGORITHM_REMOVE_IF_HPP
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