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added default implementation for iterator_facade

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[SVN r51864]
This commit is contained in:
Joel de Guzman
2009-03-20 09:45:36 +00:00
parent c81456f35e
commit 9acd9b2feb
1 changed files with 9 additions and 1 deletions
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10
include/boost/fusion/iterator/iterator_facade.hpp
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@ -1,7 +1,7 @@
/*============================================================================= /*=============================================================================
Copyright (c) 2001-2006 Joel de Guzman Copyright (c) 2001-2006 Joel de Guzman
Distributed under the Boost Software License, Version 1.0. (See accompanying 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) file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
==============================================================================*/ ==============================================================================*/
#if !defined(FUSION_ITERATOR_FACADE_09252006_1011) #if !defined(FUSION_ITERATOR_FACADE_09252006_1011)
@ -9,6 +9,7 @@
#include <boost/fusion/support/iterator_base.hpp> #include <boost/fusion/support/iterator_base.hpp>
#include <boost/fusion/iterator/detail/advance.hpp> #include <boost/fusion/iterator/detail/advance.hpp>
#include <boost/fusion/iterator/detail/distance.hpp>
#include <boost/fusion/support/category_of.hpp> #include <boost/fusion/support/category_of.hpp>
#include <boost/type_traits/is_same.hpp> #include <boost/type_traits/is_same.hpp>
#include <boost/mpl/assert.hpp> #include <boost/mpl/assert.hpp>
@ -44,6 +45,13 @@ namespace boost { namespace fusion
{ {
BOOST_MPL_ASSERT_NOT((traits::is_random_access<Iterator>)); BOOST_MPL_ASSERT_NOT((traits::is_random_access<Iterator>));
}; };
// default implementation
template <typename First, typename Last>
struct distance :
distance_detail::linear_distance<First, Last>
{
};
}; };
}} }}