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/*=============================================================================
Copyright (c) 2001-2011 Joel de Guzman
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(FUSION_PRIOR_IMPL_05042005_1145)
#define FUSION_PRIOR_IMPL_05042005_1145
#include <boost/fusion/support/config.hpp>
#include <boost/fusion/container/vector/vector_iterator.hpp>
namespace boost { namespace fusion
{
struct vector_iterator_tag;
template <typename Vector, int N>
struct vector_iterator;
namespace extension
{
template <typename Tag>
struct prior_impl;
template <>
struct prior_impl<vector_iterator_tag>
{
template <typename Iterator>
struct apply
{
typedef typename Iterator::vector vector;
typedef typename Iterator::index index;
typedef vector_iterator<vector, index::value-1> type;
BOOST_FUSION_GPU_ENABLED
static type
call(Iterator const& i)
{
return type(i.vec);
}
};
};
}
}}
#endif
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