OpenMesh: OpenMesh/Core/IO/SR_binary.hh Source File

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SR_binary.hh
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41
42
43
44
45 //=============================================================================
46 //
47 // Helper Functions for binary reading / writing
48 //
49 //=============================================================================
50
51 #ifndef OPENMESH_SR_BINARY_HH
52 #define OPENMESH_SR_BINARY_HH
53
54
55 //== INCLUDES =================================================================
56
57 #include <OpenMesh/Core/System/config.h>
58 // -------------------- STL
59 #include <typeinfo>
60 #include <stdexcept>
61 #include <sstream>
62 #include <numeric> // accumulate
63 // -------------------- OpenMesh
64
65
66 //== NAMESPACES ===============================================================
67
68 namespace OpenMesh {
69 namespace IO {
70
71
72 //=============================================================================
73
74
75 //-----------------------------------------------------------------------------
76
77 const static size_t UnknownSize(size_t(-1));
78
79
80 //-----------------------------------------------------------------------------
81 // struct binary, helper for storing/restoring
82
83 #define X \
84 std::ostringstream msg; \
85 msg << "Type not supported: " << typeid(value_type).name(); \
86 throw std::logic_error(msg.str())
87
101 template < typename T, typename = void > struct binary
102 {
103 typedef T value_type;
104
106 static const bool is_streamable = false;
107
109 static size_t size_of(void) { return UnknownSize; }
111 static size_t size_of(const value_type&) { return UnknownSize; }
112
114 static std::string type_identifier (void) { return "UnknownType"; }
115
117 static
118 size_t store( std::ostream& /* _os */,
119 const value_type& /* _v */,
120 bool /* _swap */ = false ,
121 bool /* store_size */ = true ) // for vectors
122 { X; return 0; }
123
125 static
126 size_t restore( std::istream& /* _is */,
127 value_type& /* _v */,
128 bool /* _swap */ = false ,
129 bool /* store_size */ = true ) // for vectors
130 { X; return 0; }
131 };
132
133 #undef X
134
135
136 //=============================================================================
137 } // namespace IO
138 } // namespace OpenMesh
139 //=============================================================================
140 #endif // OPENMESH_SR_RBO_HH defined
141 //=============================================================================
142
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:59
OpenMesh::IO::binary
The struct defines how to store and restore the type T.
Definition: SR_binary.hh:102
OpenMesh::IO::binary::restore
static size_t restore(std::istream &, value_type &, bool=false, bool=true)
Restore a value of T and return the number of bytes read.
Definition: SR_binary.hh:126
OpenMesh::IO::binary::is_streamable
static const bool is_streamable
Can we store T? Set this to true in your specialization.
Definition: SR_binary.hh:106
OpenMesh::IO::binary::store
static size_t store(std::ostream &, const value_type &, bool=false, bool=true)
Store a value of T and return the number of bytes written.
Definition: SR_binary.hh:118
OpenMesh::IO::binary::type_identifier
static std::string type_identifier(void)
A string that identifies the type of T.
Definition: SR_binary.hh:114
OpenMesh::IO::binary::size_of
static size_t size_of(void)
What's the size of T? If it depends on the actual value (e.g. for vectors) return UnknownSize.
Definition: SR_binary.hh:109
OpenMesh::IO::binary::size_of
static size_t size_of(const value_type &)
What't the size of a specific value of type T.
Definition: SR_binary.hh:111