// Copyright (C) 2007 
// Fraunhofer Institut fuer offene Kommunikationssysteme (FOKUS)
// Kompetenzzentrum fuer Satelitenkommunikation (SatCom)
//     Stefan Bund <g0dil@berlios.de>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the
// Free Software Foundation, Inc.,
// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

/** \file
    \brief PacketParser internal header */

#ifndef IH_PacketParser_
#define IH_PacketParser_ 1

// Custom includes

///////////////////////////////ih.p////////////////////////////////////////

namespace senf {
namespace detail {

    // PLEASE don't add this to doxygen ... it just looks to weird and does not help ...

#   ifndef DOXYGEN

    template <PacketParserBase::size_type i>
    struct Parser_TakeNum {};

    template <class Parser>
    PacketParserBase::size_type packetParserSize(
        Parser p, int, Parser_TakeNum<Parser::fixed_bytes> * = 0);

    template <class Parser>
    PacketParserBase::size_type packetParserSize(Parser p, ...);

    template <unsigned n> struct ParserInitBytes_RV { char _[16][n]; };

    template <class Parser>
    ParserInitBytes_RV<1> ParserInitBytes_Choose_(Parser_TakeNum<Parser::init_bytes> *);
    
    template <class Parser>
    ParserInitBytes_RV<2> ParserInitBytes_Choose_(...);

    template <class Parser, unsigned size>
    struct ParserInitBytes_Choose 
        : public boost::integral_constant<PacketParserBase::size_type, Parser::init_bytes> {};

    template <class Parser>
    struct ParserInitBytes_Choose<Parser, sizeof(ParserInitBytes_RV<2>)>
        : public boost::integral_constant<PacketParserBase::size_type, Parser::fixed_bytes> {};

    template <class Parser>
    struct ParserInitBytes
        : public ParserInitBytes_Choose<Parser, sizeof(ParserInitBytes_Choose_<Parser>(0))> {};

#   endif

}}

///////////////////////////////ih.e////////////////////////////////////////
#endif


// Local Variables:
// mode: c++
// fill-column: 100
// c-file-style: "senf"
// indent-tabs-mode: nil
// ispell-local-dictionary: "american"
// compile-command: "scons -u test"
// comment-column: 40
// End: