1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/ossrv_pub/boost_apis/boost/iostreams/pipeline.hpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,125 @@
     1.4 +// (C) Copyright Jonathan Turkanis 2003.
     1.5 +// Distributed under the Boost Software License, Version 1.0. (See accompanying
     1.6 +// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
     1.7 +
     1.8 +// See http://www.boost.org/libs/iostreams for documentation.
     1.9 +
    1.10 +#ifndef BOOST_IOSTREAMS_PIPABLE_HPP_INCLUDED
    1.11 +#define BOOST_IOSTREAMS_PIPABLE_HPP_INCLUDED
    1.12 +
    1.13 +#if defined(_MSC_VER) && (_MSC_VER >= 1020)
    1.14 +# pragma once
    1.15 +#endif
    1.16 +
    1.17 +#include <boost/config.hpp> // BOOST_MSVC.
    1.18 +#include <boost/detail/workaround.hpp>           
    1.19 +#include <boost/iostreams/detail/template_params.hpp>
    1.20 +#include <boost/iostreams/traits.hpp>
    1.21 +#include <boost/mpl/bool.hpp>
    1.22 +#include <boost/preprocessor/punctuation/comma_if.hpp>
    1.23 +#include <boost/preprocessor/repetition/enum_params.hpp>
    1.24 +#include <boost/static_assert.hpp>
    1.25 +#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
    1.26 +# include <boost/type_traits/is_base_and_derived.hpp>
    1.27 +#endif
    1.28 +
    1.29 +#define BOOST_IOSTREAMS_PIPABLE(filter, arity) \
    1.30 +    template< BOOST_PP_ENUM_PARAMS(arity, typename T) \
    1.31 +              BOOST_PP_COMMA_IF(arity) typename Component> \
    1.32 +    ::boost::iostreams::pipeline< \
    1.33 +        ::boost::iostreams::detail::pipeline_segment< \
    1.34 +            filter BOOST_IOSTREAMS_TEMPLATE_ARGS(arity, T) \
    1.35 +        >, \
    1.36 +        Component \
    1.37 +    > operator|( const filter BOOST_IOSTREAMS_TEMPLATE_ARGS(arity, T)& f, \
    1.38 +                 const Component& c ) \
    1.39 +    { \
    1.40 +        typedef ::boost::iostreams::detail::pipeline_segment< \
    1.41 +                    filter BOOST_IOSTREAMS_TEMPLATE_ARGS(arity, T) \
    1.42 +                > segment; \
    1.43 +        return ::boost::iostreams::pipeline<segment, Component> \
    1.44 +                   (segment(f), c); \
    1.45 +    } \
    1.46 +    /**/
    1.47 +
    1.48 +namespace boost { namespace iostreams {
    1.49 +
    1.50 +template<typename Pipeline, typename Component>
    1.51 +struct pipeline;
    1.52 +    
    1.53 +namespace detail {
    1.54 +
    1.55 +#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) 
    1.56 +    struct pipeline_base { };
    1.57 +
    1.58 +    template<typename T>
    1.59 +    struct is_pipeline 
    1.60 +        : is_base_and_derived<pipeline_base, T>
    1.61 +        { };
    1.62 +#endif 
    1.63 +#if BOOST_WORKAROUND(__BORLANDC__, < 0x600)
    1.64 +    template<typename T>
    1.65 +    struct is_pipeline : mpl::false_ { };
    1.66 +
    1.67 +    template<typename Pipeline, typename Component>
    1.68 +    struct is_pipeline< pipeline<Pipeline, Component> > : mpl::true_ { };
    1.69 +#endif
    1.70 +
    1.71 +template<typename Component>
    1.72 +class pipeline_segment 
    1.73 +#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
    1.74 +    : pipeline_base 
    1.75 +#endif 
    1.76 +{
    1.77 +public:
    1.78 +    pipeline_segment(const Component& component) 
    1.79 +        : component_(component) 
    1.80 +        { }
    1.81 +    template<typename Fn>
    1.82 +    void for_each(Fn fn) const { fn(component_); }
    1.83 +    template<typename Chain>
    1.84 +    void push(Chain& chn) const { chn.push(component_); }
    1.85 +private:
    1.86 +    const Component& component_;
    1.87 +};
    1.88 +
    1.89 +} // End namespace detail.
    1.90 +                    
    1.91 +//------------------Definition of Pipeline------------------------------------//
    1.92 +
    1.93 +template<typename Pipeline, typename Component>
    1.94 +struct pipeline : Pipeline {
    1.95 +    typedef Pipeline   pipeline_type;
    1.96 +    typedef Component  component_type;
    1.97 +    pipeline(const Pipeline& p, const Component& component)
    1.98 +        : Pipeline(p), component_(component)
    1.99 +        { }
   1.100 +    template<typename Fn>
   1.101 +    void for_each(Fn fn) const
   1.102 +    {
   1.103 +        Pipeline::for_each(fn);
   1.104 +        fn(component_);
   1.105 +    }
   1.106 +    template<typename Chain>
   1.107 +    void push(Chain& chn) const
   1.108 +    { 
   1.109 +        Pipeline::push(chn);
   1.110 +        chn.push(component_);
   1.111 +    }
   1.112 +    const Pipeline& tail() const { return *this; }
   1.113 +    const Component& head() const { return component_; }
   1.114 +private:
   1.115 +    const Component& component_;
   1.116 +};
   1.117 +
   1.118 +template<typename Pipeline, typename Filter, typename Component>
   1.119 +pipeline<pipeline<Pipeline, Filter>, Component>
   1.120 +operator|(const pipeline<Pipeline, Filter>& p, const Component& cmp)
   1.121 +{
   1.122 +    BOOST_STATIC_ASSERT(is_filter<Filter>::value);
   1.123 +    return pipeline<pipeline<Pipeline, Filter>, Component>(p, cmp);
   1.124 +}
   1.125 +
   1.126 +} } // End namespaces iostreams, boost.
   1.127 +
   1.128 +#endif // #ifndef BOOST_IOSTREAMS_PIPABLE_HPP_INCLUDED