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SR_binary.hh
1 /*===========================================================================*\
2 * *
3 * OpenMesh *
4 * Copyright (C) 2001-2014 by Computer Graphics Group, RWTH Aachen *
5 * www.openmesh.org *
6 * *
7 *---------------------------------------------------------------------------*
8 * This file is part of OpenMesh. *
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16 * If other files instantiate templates or use macros *
17 * or inline functions from this file, or you compile this file and *
18 * link it with other files to produce an executable, this file does *
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33 \*===========================================================================*/
34
35 /*===========================================================================*\
36 * *
37 * $Revision: 990 $ *
38 * $Date: 2014-02-05 10:01:07 +0100 (Mi, 05. Feb 2014) $ *
39 * *
40 \*===========================================================================*/
41
42
43 //=============================================================================
44 //
45 // Helper Functions for binary reading / writing
46 //
47 //=============================================================================
48
49 #ifndef OPENMESH_SR_BINARY_HH
50 #define OPENMESH_SR_BINARY_HH
51
52
53 //== INCLUDES =================================================================
54
55 #include <OpenMesh/Core/System/config.h>
56 // -------------------- STL
57 #include <typeinfo>
58 #include <stdexcept>
59 #include <sstream>
60 #include <numeric> // accumulate
61 // -------------------- OpenMesh
62
63
64 //== NAMESPACES ===============================================================
65
66 namespace OpenMesh {
67 namespace IO {
68
69
70 //=============================================================================
71
72
73 //-----------------------------------------------------------------------------
74
75 const static size_t UnknownSize(size_t(-1));
76
77
78 //-----------------------------------------------------------------------------
79 // struct binary, helper for storing/restoring
80
81 #define X \
82 std::ostringstream msg; \
83 msg << "Type not supported: " << typeid(value_type).name(); \
84 throw std::logic_error(msg.str())
85
98 template < typename T > struct binary
99 {
100 typedef T value_type;
101
102 static const bool is_streamable = false;
103
104 static size_t size_of(void) { return UnknownSize; }
105 static size_t size_of(const value_type&) { return UnknownSize; }
106
107 static
108 size_t store( std::ostream& /* _os */,
109 const value_type& /* _v */,
110 bool /* _swap=false */)
111 { X; return 0; }
112
113 static
114 size_t restore( std::istream& /* _is */,
115 value_type& /* _v */,
116 bool /* _swap=false */)
117 { X; return 0; }
118 };
119
120 #undef X
121
122
123 //=============================================================================
124 } // namespace IO
125 } // namespace OpenMesh
126 //=============================================================================
127 #endif // OPENMESH_SR_RBO_HH defined
128 //=============================================================================
129
OpenMesh::IO::binary
The struct defines how to store and restore the type T.
Definition: SR_binary.hh:98