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bit_istream.hpp

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00001 /*
00002   CLAW - a C++ Library Absolutely Wonderful
00003 
00004   CLAW is a free library without any particular aim but being useful to 
00005   anyone.
00006 
00007   Copyright (C) 2005-2010 Julien Jorge
00008 
00009   This library is free software; you can redistribute it and/or
00010   modify it under the terms of the GNU Lesser General Public
00011   License as published by the Free Software Foundation; either
00012   version 2.1 of the License, or (at your option) any later version.
00013 
00014   This library is distributed in the hope that it will be useful,
00015   but WITHOUT ANY WARRANTY; without even the implied warranty of
00016   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00017   Lesser General Public License for more details.
00018 
00019   You should have received a copy of the GNU Lesser General Public
00020   License along with this library; if not, write to the Free Software
00021   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00022 
00023   contact: julien_jorge@yahoo.fr
00024 */
00030 #ifndef __CLAW_BIT_ISTREAM_HPP__
00031 #define __CLAW_BIT_ISTREAM_HPP__
00032 
00033 namespace claw
00034 {
00039   template<typename Stream>
00040   class bit_istream
00041   {
00042   private:
00044     typedef Stream stream_type;
00045 
00046   public:
00047     bit_istream( stream_type& f );
00048 
00049     void read( char* buf, unsigned int n );
00050     
00051     operator bool() const;
00052 
00053   private:
00055     stream_type& m_stream;
00056     
00058     unsigned char m_pending;
00059     
00061     unsigned char m_pending_length;
00062     
00063   }; // class bit_istream
00064 } // namespace claw
00065 
00066 #include <claw/impl/bit_istream.tpp>
00067 
00068 #endif // __CLAW_BIT_ISTREAM_HPP__

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