Chris@16: //  Copyright Neil Groves 2009. Use, modification and
Chris@16: //  distribution is subject to the Boost Software License, Version
Chris@16: //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: //  http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: //
Chris@16: // For more information, see http://www.boost.org/libs/range/
Chris@16: //
Chris@16: #ifndef BOOST_RANGE_ALGORITHM_TRANSFORM_HPP_INCLUDED
Chris@16: #define BOOST_RANGE_ALGORITHM_TRANSFORM_HPP_INCLUDED
Chris@16: 
Chris@16: #include <boost/assert.hpp>
Chris@16: #include <boost/concept_check.hpp>
Chris@16: #include <boost/range/begin.hpp>
Chris@16: #include <boost/range/end.hpp>
Chris@16: #include <boost/range/concepts.hpp>
Chris@16: #include <algorithm>
Chris@16: 
Chris@16: namespace boost
Chris@16: {
Chris@16:     namespace range
Chris@16:     {
Chris@16: 
Chris@16:         /// \brief template function transform
Chris@16:         ///
Chris@16:         /// range-based version of the transform std algorithm
Chris@16:         ///
Chris@16:         /// \pre SinglePassRange1 is a model of the SinglePassRangeConcept
Chris@16:         /// \pre SinglePassRange2 is a model of the SinglePassRangeConcept
Chris@16:         /// \pre OutputIterator is a model of the OutputIteratorConcept
Chris@16:         /// \pre UnaryOperation is a model of the UnaryFunctionConcept
Chris@16:         /// \pre BinaryOperation is a model of the BinaryFunctionConcept
Chris@16:         template< class SinglePassRange1,
Chris@16:                   class OutputIterator,
Chris@16:                   class UnaryOperation >
Chris@16:         inline OutputIterator
Chris@16:         transform(const SinglePassRange1& rng,
Chris@16:                   OutputIterator          out,
Chris@16:                   UnaryOperation          fun)
Chris@16:         {
Chris@16:             BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> ));
Chris@16:             return std::transform(boost::begin(rng),boost::end(rng),out,fun);
Chris@16:         }
Chris@16: 
Chris@16:     } // namespace range
Chris@16: 
Chris@16:     namespace range_detail
Chris@16:     {
Chris@16:         template< class SinglePassTraversalReadableIterator1,
Chris@16:                   class SinglePassTraversalReadableIterator2,
Chris@16:                   class OutputIterator,
Chris@16:                   class BinaryFunction >
Chris@16:         inline OutputIterator
Chris@16:         transform_impl(SinglePassTraversalReadableIterator1 first1,
Chris@16:                        SinglePassTraversalReadableIterator1 last1,
Chris@16:                        SinglePassTraversalReadableIterator2 first2,
Chris@16:                        SinglePassTraversalReadableIterator2 last2,
Chris@16:                        OutputIterator                       out,
Chris@16:                        BinaryFunction                       fn)
Chris@16:         {
Chris@101:             for (; first1 != last1 && first2 != last2; ++first1, ++first2)
Chris@16:             {
Chris@16:                 *out = fn(*first1, *first2);
Chris@16:                 ++out;
Chris@16:             }
Chris@16:             return out;
Chris@16:         }
Chris@16:     }
Chris@16: 
Chris@16:     namespace range
Chris@16:     {
Chris@16: 
Chris@16:         /// \overload
Chris@16:         template< class SinglePassRange1,
Chris@16:                   class SinglePassRange2,
Chris@16:                   class OutputIterator,
Chris@16:                   class BinaryOperation >
Chris@16:         inline OutputIterator
Chris@16:         transform(const SinglePassRange1& rng1,
Chris@16:                   const SinglePassRange2& rng2,
Chris@16:                   OutputIterator          out,
Chris@16:                   BinaryOperation         fun)
Chris@16:         {
Chris@16:             BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> ));
Chris@16:             BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange2> ));
Chris@16:             return boost::range_detail::transform_impl(
Chris@16:                         boost::begin(rng1), boost::end(rng1),
Chris@16:                         boost::begin(rng2), boost::end(rng2),
Chris@16:                         out, fun);
Chris@16:         }
Chris@16: 
Chris@16:     } // namespace range
Chris@16:     using range::transform;
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #endif // include guard