56 lines
1.9 KiB
Plaintext
56 lines
1.9 KiB
Plaintext
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/*=============================================================================
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Copyright (c) 1999-2003 Jaakko Jarvi
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Copyright (c) 2001-2011 Joel de Guzman
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#if !defined(FUSION_LESS_05052005_1141)
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#define FUSION_LESS_05052005_1141
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#include <boost/fusion/support/config.hpp>
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#include <boost/mpl/bool.hpp>
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#include <boost/fusion/iterator/deref.hpp>
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#include <boost/fusion/iterator/next.hpp>
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#include <boost/fusion/iterator/equal_to.hpp>
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#include <boost/fusion/support/as_const.hpp>
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namespace boost { namespace fusion { namespace detail
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{
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template <typename Seq1, typename Seq2>
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struct sequence_less
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{
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typedef typename result_of::end<Seq1>::type end1_type;
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typedef typename result_of::end<Seq2>::type end2_type;
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template <typename I1, typename I2>
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BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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static bool
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call(I1 const&, I2 const&, mpl::true_)
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{
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return false;
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}
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template <typename I1, typename I2>
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BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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static bool
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call(I1 const& a, I2 const& b, mpl::false_)
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{
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return extension::as_const(*a) < extension::as_const(*b) ||
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(!(extension::as_const(*b) < extension::as_const(*a)) &&
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call(fusion::next(a), fusion::next(b)));
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}
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template <typename I1, typename I2>
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BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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static bool
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call(I1 const& a, I2 const& b)
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{
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typename result_of::equal_to<I1, end1_type>::type eq;
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return call(a, b, eq);
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}
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};
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}}}
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#endif
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