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+//---------------------------------------------------------------------------//
+// Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
+//
+// Distributed under the Boost Software License, Version 1.0
+// See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt
+//
+// See http://boostorg.github.com/compute for more information.
+//---------------------------------------------------------------------------//
+
+#ifndef BOOST_COMPUTE_ALGORITHM_TRANSFORM_HPP
+#define BOOST_COMPUTE_ALGORITHM_TRANSFORM_HPP
+
+#include <boost/compute/system.hpp>
+#include <boost/compute/command_queue.hpp>
+#include <boost/compute/algorithm/copy.hpp>
+#include <boost/compute/iterator/transform_iterator.hpp>
+#include <boost/compute/iterator/zip_iterator.hpp>
+#include <boost/compute/functional/detail/unpack.hpp>
+
+namespace boost {
+namespace compute {
+
+/// Transforms the elements in the range [\p first, \p last) using
+/// \p transform and stores the results in the range beginning at
+/// \p result.
+///
+/// For example, to calculate the absolute value for each element in a vector:
+///
+/// \snippet test/test_transform.cpp transform_abs
+///
+/// \see copy()
+template<class InputIterator, class OutputIterator, class UnaryOperator>
+inline OutputIterator transform(InputIterator first,
+ InputIterator last,
+ OutputIterator result,
+ UnaryOperator op,
+ command_queue &queue = system::default_queue())
+{
+ return copy(
+ ::boost::compute::make_transform_iterator(first, op),
+ ::boost::compute::make_transform_iterator(last, op),
+ result,
+ queue
+ );
+}
+
+/// \overload
+template<class InputIterator1,
+ class InputIterator2,
+ class OutputIterator,
+ class BinaryOperator>
+inline OutputIterator transform(InputIterator1 first1,
+ InputIterator1 last1,
+ InputIterator2 first2,
+ OutputIterator result,
+ BinaryOperator op,
+ command_queue &queue = system::default_queue())
+{
+ typedef typename std::iterator_traits<InputIterator1>::difference_type difference_type;
+
+ difference_type n = std::distance(first1, last1);
+
+ return transform(
+ make_zip_iterator(boost::make_tuple(first1, first2)),
+ make_zip_iterator(boost::make_tuple(last1, first2 + n)),
+ result,
+ detail::unpack(op),
+ queue
+ );
+}
+
+} // end compute namespace
+} // end boost namespace
+
+#endif // BOOST_COMPUTE_ALGORITHM_TRANSFORM_HPP