OpenMesh
OpenMesh/Core/IO/SR_binary.hh
00001 /*===========================================================================*\
00002  *                                                                           *
00003  *                               OpenMesh                                    *
00004  *      Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen      *
00005  *                           www.openmesh.org                                *
00006  *                                                                           *
00007  *---------------------------------------------------------------------------* 
00008  *  This file is part of OpenMesh.                                           *
00009  *                                                                           *
00010  *  OpenMesh is free software: you can redistribute it and/or modify         * 
00011  *  it under the terms of the GNU Lesser General Public License as           *
00012  *  published by the Free Software Foundation, either version 3 of           *
00013  *  the License, or (at your option) any later version with the              *
00014  *  following exceptions:                                                    *
00015  *                                                                           *
00016  *  If other files instantiate templates or use macros                       *
00017  *  or inline functions from this file, or you compile this file and         *
00018  *  link it with other files to produce an executable, this file does        *
00019  *  not by itself cause the resulting executable to be covered by the        *
00020  *  GNU Lesser General Public License. This exception does not however       *
00021  *  invalidate any other reasons why the executable file might be            *
00022  *  covered by the GNU Lesser General Public License.                        *
00023  *                                                                           *
00024  *  OpenMesh is distributed in the hope that it will be useful,              *
00025  *  but WITHOUT ANY WARRANTY; without even the implied warranty of           *
00026  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            *
00027  *  GNU Lesser General Public License for more details.                      *
00028  *                                                                           *
00029  *  You should have received a copy of the GNU LesserGeneral Public          *
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00032  *                                                                           *
00033 \*===========================================================================*/ 
00034 
00035 /*===========================================================================*\
00036  *                                                                           *             
00037  *   $Revision: 362 $                                                         *
00038  *   $Date: 2011-01-26 10:21:12 +0100 (Mi, 26 Jan 2011) $                   *
00039  *                                                                           *
00040 \*===========================================================================*/
00041 
00042 
00043 //=============================================================================
00044 //
00045 //  Helper Functions for binary reading / writing
00046 //
00047 //=============================================================================
00048 
00049 #ifndef OPENMESH_SR_BINARY_HH
00050 #define OPENMESH_SR_BINARY_HH
00051 
00052 
00053 //== INCLUDES =================================================================
00054 
00055 #include <OpenMesh/Core/System/config.h>
00056 // -------------------- STL
00057 #include <typeinfo>
00058 #include <stdexcept>
00059 #include <sstream>
00060 #include <numeric>   // accumulate
00061 // -------------------- OpenMesh
00062 
00063 
00064 //== NAMESPACES ===============================================================
00065 
00066 namespace OpenMesh {
00067 namespace IO {
00068 
00069 
00070 //=============================================================================
00071 
00072 
00073 //-----------------------------------------------------------------------------
00074 
00075   const static size_t UnknownSize(size_t(-1));
00076 
00077 
00078 //-----------------------------------------------------------------------------
00079 // struct binary, helper for storing/restoring
00080 
00081 #define X \
00082    std::ostringstream msg; \
00083    msg << "Type not supported: " << typeid(value_type).name(); \
00084    throw std::logic_error(msg.str())
00085 
00098 template < typename T > struct binary
00099 {
00100   typedef T     value_type;
00101 
00102   static const bool is_streamable = false;
00103 
00104   static size_t size_of(void) { return UnknownSize; }
00105   static size_t size_of(const value_type&) { return UnknownSize; }
00106 
00107   static 
00108   size_t store( std::ostream& /* _os */,
00109                 const value_type& /* _v */,
00110                 bool /* _swap=false */)
00111   { X; return 0; }
00112 
00113   static 
00114   size_t restore( std::istream& /* _is */,
00115                   value_type& /* _v */,
00116                   bool /* _swap=false */)
00117   { X; return 0; }
00118 };
00119 
00120 #undef X
00121 
00122 
00123 //=============================================================================
00124 } // namespace IO
00125 } // namespace OpenMesh
00126 //=============================================================================
00127 #endif // OPENMESH_SR_RBO_HH defined
00128 //=============================================================================
00129