48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
/*=============================================================================
|
|
Copyright (c) 2001-2011 Joel de Guzman
|
|
Copyright (c) 2006 Dan Marsden
|
|
|
|
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)
|
|
==============================================================================*/
|
|
#if !defined(BOOST_FUSION_ADVANCE_IMPL_20060222_2150)
|
|
#define BOOST_FUSION_ADVANCE_IMPL_20060222_2150
|
|
|
|
namespace example
|
|
{
|
|
struct example_struct_iterator_tag;
|
|
|
|
template<typename Struct, int Pos>
|
|
struct example_struct_iterator;
|
|
}
|
|
|
|
namespace boost { namespace fusion {
|
|
|
|
namespace extension
|
|
{
|
|
template<typename Tag>
|
|
struct advance_impl;
|
|
|
|
template<>
|
|
struct advance_impl<example::example_struct_iterator_tag>
|
|
{
|
|
template<typename Iterator, typename N>
|
|
struct apply
|
|
{
|
|
typedef typename Iterator::struct_type struct_type;
|
|
typedef typename Iterator::index index;
|
|
typedef example::example_struct_iterator<
|
|
struct_type, index::value + N::value> type;
|
|
|
|
static type
|
|
call(Iterator const& it)
|
|
{
|
|
return type(it.struct_);
|
|
}
|
|
};
|
|
};
|
|
}
|
|
}}
|
|
|
|
#endif
|