| |
| // Copyright Aleksey Gurtovoy 2000-2004 |
| // |
| // 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://www.boost.org/libs/mpl for documentation. |
| |
| // $Id: advance.cpp 49268 2008-10-11 06:26:17Z agurtovoy $ |
| // $Date: 2008-10-11 02:26:17 -0400 (Sat, 11 Oct 2008) $ |
| // $Revision: 49268 $ |
| |
| #include <boost/mpl/advance.hpp> |
| #include <boost/mpl/iterator_tags.hpp> |
| #include <boost/mpl/aux_/test.hpp> |
| |
| template< int pos > struct iter |
| { |
| typedef mpl::bidirectional_iterator_tag category; |
| typedef iter<(pos + 1)> next; |
| typedef iter<(pos - 1)> prior; |
| typedef int_<pos> type; |
| }; |
| |
| #if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3003)) |
| namespace boost { namespace mpl { |
| template< int pos, typename Default > struct tag< iter<pos>,Default > : void_ {}; |
| }} |
| #endif |
| |
| typedef iter<0> first; |
| typedef iter<10> last; |
| |
| MPL_TEST_CASE() |
| { |
| typedef mpl::advance<first,int_<10> >::type iter1; |
| typedef advance_c<first,10>::type iter2; |
| |
| MPL_ASSERT(( is_same<iter1, last> )); |
| MPL_ASSERT(( is_same<iter2, last> )); |
| } |
| |
| MPL_TEST_CASE() |
| { |
| typedef mpl::advance<last,int_<-10> >::type iter1; |
| typedef advance_c<last,-10>::type iter2; |
| |
| MPL_ASSERT(( is_same<iter1, first> )); |
| MPL_ASSERT(( is_same<iter2, first> )); |
| } |