stream_source.hpp

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#ifndef Om_Source_StreamSource_
 
    #define Om_Source_StreamSource_ \
    Om::Source::StreamSource
 
    #include "om/source/default_source.hpp"
 
    #ifndef Om_Macro_Precompilation_
 
        #include "boost/optional.hpp"
 
    #endif
 
namespace Om {
 
    namespace Source {
 
        // MARK: - Om::Source::StreamSource
 
        template <typename ThisItem = char>
        class StreamSource:
        public DefaultSource<
            ThisItem const,
            StreamSource<ThisItem>
        > {
 
        public: // MARK: public (non-static)
 
            StreamSource();
 
            explicit StreamSource(std::istream &);
 
            StreamSource & operator =(StreamSource);
 
            virtual bool operator !() const;
 
            virtual ThisItem const & operator *() const;
 
            using DefaultSource<
                ThisItem const,
                StreamSource<ThisItem>
            >::Equals;
 
            bool Equals(StreamSource const &) const;
 
            virtual void Pop();
 
            void Swap(StreamSource &);
 
        private: // MARK: private (static)
 
            typedef std::istreambuf_iterator<ThisItem> StreamIterator;
 
        private: // MARK: private (non-static)
 
            StreamIterator thisStreamIterator;
 
            mutable boost::optional<ThisItem> thisItem;
 
        };
 
        // MARK: - Om::Source::
 
        template <typename TheItem>
        bool operator ==(
            StreamSource<TheItem> const &,
            StreamSource<TheItem> const &
        );
 
        template <typename TheItem>
        bool operator !=(
            StreamSource<TheItem> const &,
            StreamSource<TheItem> const &
        );
 
    }
 
}
 
namespace boost {
 
    // MARK: - boost::
 
    template <typename TheItem>
    void swap(
        Om::Source::StreamSource<TheItem> &,
        Om::Source::StreamSource<TheItem> &
    );
 
}
 
    #include "om/source/stream_source.cpp"
 
#endif