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_FOR_EACH_HPP_INCLUDED
Chris@16: #define BOOST_RANGE_ALGORITHM_FOR_EACH_HPP_INCLUDED
Chris@16: 
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 <boost/utility/enable_if.hpp>
Chris@16: #include <boost/ref.hpp>
Chris@16: #include <algorithm>
Chris@16: 
Chris@16: #if BOOST_WORKAROUND(BOOST_MSVC, == 1600)
Chris@16: #include <xutility>
Chris@16: #endif
Chris@16: 
Chris@16: namespace boost
Chris@16: {
Chris@16:     namespace range
Chris@16:     {
Chris@16: 
Chris@16: #if BOOST_WORKAROUND(BOOST_MSVC, == 1600)
Chris@16:         namespace for_each_detail
Chris@16:         {
Chris@16:             template<typename Iterator, typename UnaryFunction>
Chris@16:             inline UnaryFunction
Chris@16:             for_each_impl(Iterator first, Iterator last, UnaryFunction fun,
Chris@101:                           typename ::boost::enable_if<
Chris@16:                             is_reference_wrapper<UnaryFunction>,
Chris@16:                             void
Chris@16:                           >::type* = 0)
Chris@16:             {
Chris@16:                     typedef typename std::_Get_unchecked_type<Iterator>::type
Chris@16:                                 unchecked_iterator;
Chris@16: 
Chris@16:                     unchecked_iterator unchecked_last = std::_Unchecked(last);
Chris@16:                     for (unchecked_iterator unchecked_first = std::_Unchecked(first); first != last; ++first)
Chris@16:                             fun.get()(*unchecked_first);
Chris@16: 
Chris@16:                     return fun;
Chris@16:             }
Chris@16: 
Chris@16:             template<typename Iterator, typename UnaryFunction>
Chris@16:             inline UnaryFunction
Chris@16:             for_each_impl(Iterator first, Iterator last, UnaryFunction fn,
Chris@16:                           typename disable_if<
Chris@16:                             is_reference_wrapper<UnaryFunction>,
Chris@16:                             void
Chris@16:                           >::type* = 0)
Chris@16:             {
Chris@16:                 return std::for_each<Iterator, UnaryFunction>(first, last, fn);
Chris@16:             }
Chris@16:         }
Chris@16: #endif
Chris@16: 
Chris@16: /// \brief template function for_each
Chris@16: ///
Chris@16: /// range-based version of the for_each std algorithm
Chris@16: ///
Chris@16: /// \pre SinglePassRange is a model of the SinglePassRangeConcept
Chris@16: /// \pre UnaryFunction is a model of the UnaryFunctionConcept
Chris@16: template< class SinglePassRange, class UnaryFunction >
Chris@16: inline UnaryFunction for_each(SinglePassRange & rng, UnaryFunction fun)
Chris@16: {
Chris@16:     BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange> ));
Chris@16:     
Chris@16: #if BOOST_WORKAROUND(BOOST_MSVC, == 1600)
Chris@16:         return for_each_detail::for_each_impl<
Chris@16:                 typename range_iterator<SinglePassRange>::type,
Chris@16:                 UnaryFunction
Chris@16:         >(boost::begin(rng), boost::end(rng), fun);
Chris@16: #else
Chris@16:     return std::for_each<
Chris@16:         BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange>::type,
Chris@16:         UnaryFunction
Chris@16:     >(boost::begin(rng),boost::end(rng),fun);
Chris@16: #endif    
Chris@16: }
Chris@16: 
Chris@16: /// \overload
Chris@16: template< class SinglePassRange, class UnaryFunction >
Chris@16: inline UnaryFunction for_each(const SinglePassRange& rng, UnaryFunction fun)
Chris@16: {
Chris@16:     BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange> ));
Chris@16:     
Chris@16: #if BOOST_WORKAROUND(BOOST_MSVC, == 1600)
Chris@16:         return for_each_detail::for_each_impl<
Chris@16:                 typename range_iterator<const SinglePassRange>::type,
Chris@16:                 UnaryFunction
Chris@16:         >(boost::begin(rng), boost::end(rng), fun);
Chris@16: #else    
Chris@16:     return std::for_each<
Chris@16:         BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange>::type,
Chris@16:         UnaryFunction
Chris@16:     >(boost::begin(rng), boost::end(rng), fun);
Chris@16: #endif    
Chris@16: }
Chris@16: 
Chris@16:     } // namespace range
Chris@16:     using range::for_each;
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #endif // include guard