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Initial move from Spirit CVS

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[SVN r34896]
This commit is contained in:
Joel de Guzman
2006-08-16 16:50:52 +00:00
commit 75b9d13a88
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61
include/boost/fusion/sequence/comparison/detail/equal_to.hpp Normal file
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/*=============================================================================
Copyright (c) 1999-2003 Jaakko J<>rvi
Copyright (c) 2001-2006 Joel de Guzman
Use, modification and distribution is subject to 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_EQUAL_TO_05052005_1142)
#define FUSION_EQUAL_TO_05052005_1142
#include <boost/mpl/bool.hpp>
#include <boost/fusion/iterator/deref.hpp>
#include <boost/fusion/iterator/next.hpp>
#include <boost/fusion/iterator/equal_to.hpp>
namespace boost { namespace fusion { namespace detail
{
template <typename Seq1, typename Seq2, bool same_size>
struct sequence_equal_to
{
typedef typename result_of::end<Seq1>::type end1_type;
typedef typename result_of::end<Seq2>::type end2_type;
template <typename I1, typename I2>
static bool
call(I1 const&, I2 const&, mpl::true_)
{
return true;
}
template <typename I1, typename I2>
static bool
call(I1 const& a, I2 const& b, mpl::false_)
{
return *a == *b
&& call(fusion::next(a), fusion::next(b));
}
template <typename I1, typename I2>
static bool
call(I1 const& a, I2 const& b)
{
typename result_of::equal_to<I1, end1_type>::type eq;
return call(a, b, eq);
}
};
template <typename Seq1, typename Seq2>
struct sequence_equal_to<Seq1, Seq2, false>
{
template <typename I1, typename I2>
static bool
call(I1 const& a, I2 const& b)
{
return false;
}
};
}}}
#endif