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[SVN r40230]
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Joel de Guzman
2007-10-20 23:49:46 +00:00
parent 66cc9bbc28
commit 13b01b0bfe
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91
include/boost/fusion/algorithm/iteration/ext_/for_each_s.hpp
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/*=============================================================================
Copyright (c) 2006 Eric Niebler
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_FOR_EACH_S_05022006_1027)
#define FUSION_FOR_EACH_S_05022006_1027
#include <boost/mpl/assert.hpp>
#include <boost/utility/enable_if.hpp>
#include <boost/fusion/algorithm/iteration/for_each.hpp>
#include <boost/fusion/sequence/intrinsic/ext_/segments.hpp>
#include <boost/fusion/support/ext_/is_segmented.hpp>
// fwd declarations
namespace boost { namespace fusion
{
template <typename Sequence, typename F>
void
for_each_s(Sequence& seq, F const& f);
template <typename Sequence, typename F>
void
for_each_s(Sequence const& seq, F const& f);
}}
namespace boost { namespace fusion { namespace detail
{
template<typename F>
struct for_each_s_bind
{
explicit for_each_s_bind(F const &f)
: f_(f)
{}
template<typename Sequence>
void operator ()(Sequence &seq) const
{
fusion::for_each_s(seq, this->f_);
}
template<typename Sequence>
void operator ()(Sequence const &seq) const
{
fusion::for_each_s(seq, this->f_);
}
private:
F const &f_;
};
template<typename Sequence, typename F>
void for_each_s(Sequence &seq, F const &f, mpl::true_)
{
fusion::for_each_s(fusion::segments(seq), for_each_s_bind<F>(f));
}
template<typename Sequence, typename F>
void for_each_s(Sequence &seq, F const &f, mpl::false_)
{
fusion::for_each(seq, f);
}
}}}
namespace boost { namespace fusion
{
namespace result_of
{
template <typename Sequence, typename F>
struct for_each_s
{
typedef void type;
};
}
template <typename Sequence, typename F>
inline void
for_each_s(Sequence& seq, F const& f)
{
detail::for_each_s(seq, f, traits::is_segmented<Sequence>());
}
template <typename Sequence, typename F>
inline void
for_each_s(Sequence const& seq, F const& f)
{
detail::for_each_s(seq, f, traits::is_segmented<Sequence>());
}
}}
#endif