Developer Documentation
SR_binary.hh
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48 
49 
50 //=============================================================================
51 //
52 // Helper Functions for binary reading / writing
53 //
54 //=============================================================================
55 
56 #ifndef OPENMESH_SR_BINARY_HH
57 #define OPENMESH_SR_BINARY_HH
58 
59 
60 //== INCLUDES =================================================================
61 
63 // -------------------- STL
64 #include <typeinfo>
65 #include <stdexcept>
66 #include <sstream>
67 #include <numeric> // accumulate
68 // -------------------- OpenMesh
69 
70 
71 //== NAMESPACES ===============================================================
72 
73 namespace OpenMesh {
74 namespace IO {
75 
76 
77 //=============================================================================
78 
79 
80 //-----------------------------------------------------------------------------
81 
82  const static size_t UnknownSize(size_t(-1));
83 
84 
85 //-----------------------------------------------------------------------------
86 // struct binary, helper for storing/restoring
87 
88 #define X \
89  std::ostringstream msg; \
90  msg << "Type not supported: " << typeid(value_type).name(); \
91  throw std::logic_error(msg.str())
92 
105 template < typename T > struct binary
106 {
107  typedef T value_type;
108 
109  static const bool is_streamable = false;
110 
111  static size_t size_of(void) { return UnknownSize; }
112  static size_t size_of(const value_type&) { return UnknownSize; }
113 
114  static
115  size_t store( std::ostream& /* _os */,
116  const value_type& /* _v */,
117  bool /* _swap=false */)
118  { X; return 0; }
119 
120  static
121  size_t restore( std::istream& /* _is */,
122  value_type& /* _v */,
123  bool /* _swap=false */)
124  { X; return 0; }
125 };
126 
127 #undef X
128 
129 
130 //=============================================================================
131 } // namespace IO
132 } // namespace OpenMesh
133 //=============================================================================
134 #endif // OPENMESH_SR_RBO_HH defined
135 //=============================================================================
136