Chris@16: 
Chris@16: #ifndef BOOST_MPL_AUX_TRANSFORM_ITER_HPP_INCLUDED
Chris@16: #define BOOST_MPL_AUX_TRANSFORM_ITER_HPP_INCLUDED
Chris@16: 
Chris@16: // Copyright Aleksey Gurtovoy 2000-2004
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. 
Chris@16: // (See accompanying file LICENSE_1_0.txt or copy at 
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/mpl for documentation.
Chris@16: 
Chris@101: // $Id$
Chris@101: // $Date$
Chris@101: // $Revision$
Chris@16: 
Chris@16: #include <boost/mpl/apply.hpp>
Chris@16: #include <boost/mpl/iterator_tags.hpp>
Chris@16: #include <boost/mpl/next.hpp>
Chris@16: #include <boost/mpl/deref.hpp>
Chris@16: #include <boost/mpl/aux_/lambda_spec.hpp>
Chris@16: #include <boost/mpl/aux_/config/ctps.hpp>
Chris@16: #include <boost/type_traits/is_same.hpp>
Chris@16: 
Chris@16: namespace boost { namespace mpl { 
Chris@16: 
Chris@16: namespace aux {
Chris@16: 
Chris@16: #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
Chris@16: 
Chris@16: template<
Chris@16:       typename Iterator
Chris@16:     , typename LastIterator
Chris@16:     , typename F
Chris@16:     >
Chris@16: struct transform_iter
Chris@16: {
Chris@16:     typedef Iterator base;
Chris@16:     typedef forward_iterator_tag category;
Chris@16:     typedef transform_iter< typename mpl::next<base>::type,LastIterator,F > next;
Chris@16:     
Chris@16:     typedef typename apply1<
Chris@16:           F
Chris@16:         , typename deref<base>::type
Chris@16:         >::type type;
Chris@16: };
Chris@16: 
Chris@16: template<
Chris@16:       typename LastIterator
Chris@16:     , typename F
Chris@16:     >
Chris@16: struct transform_iter< LastIterator,LastIterator,F >
Chris@16: {
Chris@16:     typedef LastIterator base;
Chris@16:     typedef forward_iterator_tag category;
Chris@16: };
Chris@16: 
Chris@16: #else
Chris@16: 
Chris@16: template<
Chris@16:       typename Iterator
Chris@16:     , typename LastIterator
Chris@16:     , typename F
Chris@16:     >
Chris@16: struct transform_iter;
Chris@16: 
Chris@16: template< bool >
Chris@16: struct transform_iter_impl 
Chris@16: {
Chris@16:     template<
Chris@16:           typename Iterator
Chris@16:         , typename LastIterator
Chris@16:         , typename F
Chris@16:         >
Chris@16:     struct result_
Chris@16:     {
Chris@16:         typedef Iterator base;
Chris@16:         typedef forward_iterator_tag category;
Chris@16:         typedef transform_iter< typename mpl::next<Iterator>::type,LastIterator,F > next;
Chris@16:         
Chris@16:         typedef typename apply1<
Chris@16:               F
Chris@16:             , typename deref<Iterator>::type
Chris@16:             >::type type;
Chris@16:     };
Chris@16: };
Chris@16: 
Chris@16: template<>
Chris@16: struct transform_iter_impl<true>
Chris@16: {
Chris@16:     template<
Chris@16:           typename Iterator
Chris@16:         , typename LastIterator
Chris@16:         , typename F
Chris@16:         >
Chris@16:     struct result_
Chris@16:     {
Chris@16:         typedef Iterator base;
Chris@16:         typedef forward_iterator_tag category;
Chris@16:     };
Chris@16: };
Chris@16: 
Chris@16: template<
Chris@16:       typename Iterator
Chris@16:     , typename LastIterator
Chris@16:     , typename F
Chris@16:     >
Chris@16: struct transform_iter
Chris@16:     : transform_iter_impl<
Chris@16:           ::boost::is_same<Iterator,LastIterator>::value
Chris@16:         >::template result_< Iterator,LastIterator,F >
Chris@16: {
Chris@16: };
Chris@16: 
Chris@16: #endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
Chris@16: 
Chris@16: } // namespace aux
Chris@16: 
Chris@16: BOOST_MPL_AUX_PASS_THROUGH_LAMBDA_SPEC(3, aux::transform_iter)
Chris@16: 
Chris@16: }}
Chris@16: 
Chris@16: #endif // BOOST_MPL_AUX_TRANSFORM_ITER_HPP_INCLUDED