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112 lines
2.7 KiB
112 lines
2.7 KiB
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#ifndef BOOST_MPL_EQUAL_HPP_INCLUDED |
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#define BOOST_MPL_EQUAL_HPP_INCLUDED |
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// Copyright Aleksey Gurtovoy 2000-2004 |
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// |
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// Distributed under the Boost Software License, Version 1.0. |
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// (See accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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// |
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// See http://www.boost.org/libs/mpl for documentation. |
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// $Id: equal.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ |
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// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ |
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// $Revision: 49267 $ |
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#include <boost/mpl/aux_/iter_fold_if_impl.hpp> |
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#include <boost/mpl/aux_/iter_apply.hpp> |
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#include <boost/mpl/and.hpp> |
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#include <boost/mpl/not.hpp> |
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#include <boost/mpl/begin_end.hpp> |
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#include <boost/mpl/next.hpp> |
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#include <boost/mpl/always.hpp> |
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#include <boost/mpl/bool.hpp> |
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#include <boost/mpl/lambda.hpp> |
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#include <boost/mpl/bind.hpp> |
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#include <boost/mpl/apply.hpp> |
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#include <boost/mpl/void.hpp> |
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#include <boost/mpl/aux_/na_spec.hpp> |
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#include <boost/mpl/aux_/lambda_support.hpp> |
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#include <boost/mpl/aux_/msvc_eti_base.hpp> |
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#include <boost/type_traits/is_same.hpp> |
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namespace boost { namespace mpl { |
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namespace aux { |
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template< |
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typename Predicate |
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, typename LastIterator1 |
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, typename LastIterator2 |
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> |
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struct equal_pred |
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{ |
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template< |
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typename Iterator2 |
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, typename Iterator1 |
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> |
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struct apply |
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{ |
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typedef typename and_< |
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not_< is_same<Iterator1,LastIterator1> > |
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, not_< is_same<Iterator2,LastIterator2> > |
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, aux::iter_apply2<Predicate,Iterator1,Iterator2> |
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>::type type; |
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}; |
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}; |
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template< |
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typename Sequence1 |
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, typename Sequence2 |
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, typename Predicate |
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> |
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struct equal_impl |
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{ |
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typedef typename begin<Sequence1>::type first1_; |
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typedef typename begin<Sequence2>::type first2_; |
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typedef typename end<Sequence1>::type last1_; |
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typedef typename end<Sequence2>::type last2_; |
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typedef aux::iter_fold_if_impl< |
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first1_ |
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, first2_ |
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, next<> |
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, protect< aux::equal_pred<Predicate,last1_,last2_> > |
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, void_ |
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, always<false_> |
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> fold_; |
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typedef typename fold_::iterator iter1_; |
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typedef typename fold_::state iter2_; |
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typedef and_< |
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is_same<iter1_,last1_> |
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, is_same<iter2_,last2_> |
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> result_; |
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typedef typename result_::type type; |
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}; |
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} // namespace aux |
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template< |
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typename BOOST_MPL_AUX_NA_PARAM(Sequence1) |
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, typename BOOST_MPL_AUX_NA_PARAM(Sequence2) |
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, typename Predicate = is_same<_,_> |
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> |
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struct equal |
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: aux::msvc_eti_base< |
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typename aux::equal_impl<Sequence1,Sequence2,Predicate>::type |
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>::type |
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{ |
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BOOST_MPL_AUX_LAMBDA_SUPPORT(2,equal,(Sequence1,Sequence2)) |
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}; |
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BOOST_MPL_AUX_NA_SPEC(2, equal) |
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}} |
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#endif // BOOST_MPL_EQUAL_HPP_INCLUDED
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