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Teuchos_dyn_cast.hpp
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41 
42 #ifndef TEUCHOS_DYN_CAST_HPP
43 #define TEUCHOS_DYN_CAST_HPP
44 
45 
47 
48 
49 namespace Teuchos {
50 
51 
60 class m_bad_cast : public std::bad_cast {
61  std::string msg;
62 public:
63  explicit m_bad_cast(const std::string& what_arg ) : msg(what_arg) {}
64  virtual ~m_bad_cast() throw() {}
65  virtual const char* what() const throw() { return msg.data(); }
66 };
67 
68 
69 // Throw <tt>m_bad_cast</tt> for below function
71  const std::string &T_from,
72  const std::string &T_from_concr,
73  const std::string &T_to
74  );
75 
76 
171 template <class T_To, class T_From>
172 inline
173 T_To& dyn_cast(T_From &from)
174 {
175  T_To *to_ = dynamic_cast<T_To*>(&from);
176  if(!to_)
179  typeName(from),
181  );
182  return *to_;
183 }
184 
185 
186 } // namespace Teuchos
187 
188 
189 #endif // TEUCHOS_DYN_CAST_HPP
virtual const char * what() const
std::string typeName(const T &t)
Template function for returning the concrete type name of a passed-in object.
#define TEUCHOSCORE_LIB_DLL_EXPORT
T_To & dyn_cast(T_From &from)
Dynamic casting utility function meant to replace dynamic_cast&lt;T&amp;&gt; by throwing a better documented er...
m_bad_cast(const std::string &what_arg)
Exception class for bad cast.
Default traits class that just returns typeid(T).name().
Defines basic traits returning the name of a type in a portable and readable way. ...
TEUCHOSCORE_LIB_DLL_EXPORT void dyn_cast_throw_exception(const std::string &T_from, const std::string &T_from_concr, const std::string &T_to)