SR_binary.hh

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//=============================================================================
//
//  Helper Functions for binary reading / writing
//
//=============================================================================
 
#ifndef OPENMESH_SR_BINARY_HH
#define OPENMESH_SR_BINARY_HH
 
 
//== INCLUDES =================================================================
 
#include <OpenMesh/Core/System/config.h>
// -------------------- STL
#include <typeinfo>
#include <stdexcept>
#include <sstream>
#include <numeric>   // accumulate
// -------------------- OpenMesh
 
 
//== NAMESPACES ===============================================================
 
namespace OpenMesh {
namespace IO {
 
 
//=============================================================================
 
 
//-----------------------------------------------------------------------------
 
  const static size_t UnknownSize(size_t(-1));
 
 
//-----------------------------------------------------------------------------
// struct binary, helper for storing/restoring
 
#define X \
   std::ostringstream msg; \
   msg << "Type not supported: " << typeid(value_type).name(); \
   throw std::logic_error(msg.str())
 
template < typename T, typename = void > struct binary
{
  typedef T     value_type;
 
  static const bool is_streamable = false;
 
  static size_t size_of(void) { return UnknownSize; }
  static size_t size_of(const value_type&) { return UnknownSize; }
 
  static std::string type_identifier (void) { return "UnknownType"; }
 
  static 
  size_t store( std::ostream& /* _os */,
                const value_type& /* _v */,
                bool /* _swap */ = false ,
                bool /* store_size */ = true ) // for vectors
  { X; return 0; }
 
  static 
  size_t restore( std::istream& /* _is */,
                  value_type& /* _v */,
                  bool /* _swap */ = false ,
                  bool /* store_size */ = true ) // for vectors
  { X; return 0; }
};
 
#undef X
 
 
//=============================================================================
} // namespace IO
} // namespace OpenMesh
//=============================================================================
#endif // OPENMESH_SR_RBO_HH defined
//=============================================================================