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//-----------------------------------------------------------------------------
// boost mpl/aux_/back_impl.hpp header file
// See http://www.boost.org for updates, documentation, and revision history.
//-----------------------------------------------------------------------------
//
// Copyright (c) 2000-02
// Aleksey Gurtovoy
//
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee,
// provided that the above copyright notice appears in all copies and
// that both the copyright notice and this permission notice appear in
// supporting documentation. No representations are made about the
// suitability of this software for any purpose. It is provided "as is"
// without express or implied warranty.
#ifndef BOOST_MPL_AUX_BACK_IMPL_HPP_INCLUDED
#define BOOST_MPL_AUX_BACK_IMPL_HPP_INCLUDED
#include "boost/mpl/begin_end.hpp"
#include "boost/mpl/prior.hpp"
#include "boost/mpl/aux_/deref_wknd.hpp"
#include "boost/mpl/aux_/traits_lambda_spec.hpp"
#include "boost/mpl/aux_/config/eti.hpp"
namespace boost {
namespace mpl {
// default implementation, requires at least bi-directional iterators;
// conrete sequences might override it by specializing either the
// 'back_traits' or the primary 'back' template
template< typename Tag >
struct back_traits
{
template< typename Sequence > struct algorithm
{
typedef typename end<Sequence>::type iter_;
#if defined(BOOST_MPL_MSVC_ETI_BUG)
typedef typename prior<iter_>::type last_;
#else
typedef typename iter_::prior last_;
#endif
typedef typename BOOST_MPL_AUX_DEREF_WNKD(last_) type;
};
};
BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(1,back_traits)
} // namespace mpl
} // namespace boost
#endif // BOOST_MPL_AUX_BACK_IMPL_HPP_INCLUDED
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Mr. Shah is a reclusive C++/C# developer lurking somewhere in the depths of the city of London. He learnt physics at Kings' College London and obtained a Master in Science there. Having earned an MCAD, he teeters on the brink of transitioning from C++ to C#, unsure of which language to jump to. Fortunately, he also knows how to use .NET interop to merge code between the two languages (which means he won't have to make the choice anytime soon).
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