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Exceptions.h
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1 ///////////////////////////////////////////////////////////////////////////
2 //
3 // Copyright (c) 2012-2017 DreamWorks Animation LLC
4 //
5 // All rights reserved. This software is distributed under the
6 // Mozilla Public License 2.0 ( http://www.mozilla.org/MPL/2.0/ )
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30 
31 #ifndef OPENVDB_EXCEPTIONS_HAS_BEEN_INCLUDED
32 #define OPENVDB_EXCEPTIONS_HAS_BEEN_INCLUDED
33 
34 #include <exception>
35 #include <string>
36 #include <iostream>
37 #include <openvdb/version.h>
38 
39 namespace openvdb {
42 
43 class OPENVDB_API Exception: public std::exception
44 {
45 public:
46  Exception(const Exception&) = default;
47  Exception(Exception&&) = default;
48  Exception& operator=(const Exception&) = default;
49  Exception& operator=(Exception&&) = default;
50  ~Exception() override = default;
51 
52  const char* what() const noexcept override
53  {
54  try { return mMessage.c_str(); } catch (...) {}
55  return nullptr;
56  }
57 
58 protected:
59  Exception() noexcept {}
60  explicit Exception(const char* eType, const std::string* const msg = nullptr) noexcept
61  {
62  try {
63  if (eType) mMessage = eType;
64  if (msg) mMessage += ": " + (*msg);
65  } catch (...) {}
66  }
67 
68 private:
69  std::string mMessage;
70 };
71 
72 
73 #define OPENVDB_EXCEPTION(_classname) \
74 class OPENVDB_API _classname: public Exception \
75 { \
76 public: \
77  _classname() noexcept: Exception( #_classname ) {} \
78  explicit _classname(const std::string& msg) noexcept: Exception( #_classname , &msg) {} \
79 }
80 
81 
82 OPENVDB_EXCEPTION(ArithmeticError);
83 OPENVDB_EXCEPTION(IllegalValueException);
84 OPENVDB_EXCEPTION(IndexError);
85 OPENVDB_EXCEPTION(IoError);
86 OPENVDB_EXCEPTION(KeyError);
87 OPENVDB_EXCEPTION(LookupError);
88 OPENVDB_EXCEPTION(NotImplementedError);
89 OPENVDB_EXCEPTION(ReferenceError);
90 OPENVDB_EXCEPTION(RuntimeError);
91 OPENVDB_EXCEPTION(TypeError);
92 OPENVDB_EXCEPTION(ValueError);
93 
94 
95 #undef OPENVDB_EXCEPTION
96 
97 } // namespace OPENVDB_VERSION_NAME
98 } // namespace openvdb
99 
100 
101 #define OPENVDB_THROW(exception, message) \
102 { \
103  std::string _openvdb_throw_msg; \
104  try { \
105  std::ostringstream _openvdb_throw_os; \
106  _openvdb_throw_os << message; \
107  _openvdb_throw_msg = _openvdb_throw_os.str(); \
108  } catch (...) {} \
109  throw exception(_openvdb_throw_msg); \
110 } // OPENVDB_THROW
111 
112 #endif // OPENVDB_EXCEPTIONS_HAS_BEEN_INCLUDED
113 
114 // Copyright (c) 2012-2017 DreamWorks Animation LLC
115 // All rights reserved. This software is distributed under the
116 // Mozilla Public License 2.0 ( http://www.mozilla.org/MPL/2.0/ )
Exception(const char *eType, const std::string *const msg=nullptr) noexcept
Definition: Exceptions.h:60
const char * what() const noexceptoverride
Definition: Exceptions.h:52
GLsizei const GLchar *const * string
Definition: glcorearb.h:813
#define OPENVDB_API
Helper macros for defining library symbol visibility.
Definition: Platform.h:194
#define OPENVDB_VERSION_NAME
Definition: version.h:43
#define OPENVDB_USE_VERSION_NAMESPACE
Definition: version.h:71
#define const
Definition: zconf.h:214
OPENVDB_EXCEPTION(ArithmeticError)