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81 lines
2.6 KiB
81 lines
2.6 KiB
/*============================================================================= |
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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_EQUAL_05052005_0432) |
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#define FUSION_LESS_EQUAL_05052005_0432 |
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#include <boost/fusion/sequence/intrinsic/begin.hpp> |
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#include <boost/fusion/sequence/intrinsic/end.hpp> |
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#include <boost/fusion/sequence/intrinsic/size.hpp> |
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#include <boost/fusion/sequence/comparison/enable_comparison.hpp> |
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#include <boost/fusion/support/is_sequence.hpp> |
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#if defined(FUSION_DIRECT_OPERATOR_USAGE) |
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#include <boost/fusion/sequence/comparison/detail/less_equal.hpp> |
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#else |
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#include <boost/fusion/sequence/comparison/less.hpp> |
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#endif |
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namespace boost { namespace fusion |
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{ |
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template <typename Seq1, typename Seq2> |
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inline bool |
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less_equal(Seq1 const& a, Seq2 const& b) |
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{ |
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#if defined(FUSION_DIRECT_OPERATOR_USAGE) |
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return detail::sequence_less_equal<Seq1 const, Seq2 const>:: |
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call(fusion::begin(a), fusion::begin(b)); |
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#else |
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return !(b < a); |
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#endif |
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} |
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namespace operators |
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{ |
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#if defined(BOOST_MSVC) && (BOOST_MSVC <= 1400) |
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// Workaround for VC8.0 and VC7.1 |
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template <typename Seq1, typename Seq2> |
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inline bool |
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operator<=(sequence_base<Seq1> const& a, sequence_base<Seq2> const& b) |
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{ |
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return less_equal(a.derived(), b.derived()); |
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} |
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template <typename Seq1, typename Seq2> |
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inline typename disable_if<traits::is_native_fusion_sequence<Seq2>, bool>::type |
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operator<=(sequence_base<Seq1> const& a, Seq2 const& b) |
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{ |
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return less_equal(a.derived(), b); |
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} |
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template <typename Seq1, typename Seq2> |
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inline typename disable_if<traits::is_native_fusion_sequence<Seq1>, bool>::type |
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operator<=(Seq1 const& a, sequence_base<Seq2> const& b) |
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{ |
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return less_equal(a, b.derived()); |
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} |
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#else |
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// Somehow VC8.0 and VC7.1 does not like this code |
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// but barfs somewhere else. |
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template <typename Seq1, typename Seq2> |
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inline typename |
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enable_if< |
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traits::enable_comparison<Seq1, Seq2> |
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, bool |
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>::type |
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operator<=(Seq1 const& a, Seq2 const& b) |
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{ |
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return fusion::less_equal(a, b); |
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} |
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#endif |
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} |
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using operators::operator<=; |
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}} |
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#endif
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