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/*=============================================================================
Copyright (c) 1999-2003 Jaakko Jarvi
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_LESS_05052005_1141)
#define FUSION_LESS_05052005_1141
#include <boost/fusion/support/config.hpp>
#include <boost/mpl/bool.hpp>
#include <boost/fusion/iterator/deref.hpp>
#include <boost/fusion/iterator/next.hpp>
#include <boost/fusion/iterator/equal_to.hpp>
#include <boost/fusion/support/as_const.hpp>
namespace boost { namespace fusion { namespace detail
{
template <typename Seq1, typename Seq2>
struct sequence_less
{
typedef typename result_of::end<Seq1>::type end1_type;
typedef typename result_of::end<Seq2>::type end2_type;
template <typename I1, typename I2>
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
static bool
call(I1 const&, I2 const&, mpl::true_)
{
return false;
}
template <typename I1, typename I2>
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
static bool
call(I1 const& a, I2 const& b, mpl::false_)
{
return extension::as_const(*a) < extension::as_const(*b) ||
(!(extension::as_const(*b) < extension::as_const(*a)) &&
call(fusion::next(a), fusion::next(b)));
}
template <typename I1, typename I2>
BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
static bool
call(I1 const& a, I2 const& b)
{
typename result_of::equal_to<I1, end1_type>::type eq;
return call(a, b, eq);
}
};
}}}
#endif
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