Teuchos - Trilinos Tools Package  Version of the Day
Teuchos_dyn_cast.hpp
1 // @HEADER
2 // ***********************************************************************
3 //
4 // Teuchos: Common Tools Package
5 // Copyright (2004) Sandia Corporation
6 //
7 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
8 // license for use of this work by or on behalf of the U.S. Government.
9 //
10 // Redistribution and use in source and binary forms, with or without
11 // modification, are permitted provided that the following conditions are
12 // met:
13 //
14 // 1. Redistributions of source code must retain the above copyright
15 // notice, this list of conditions and the following disclaimer.
16 //
17 // 2. Redistributions in binary form must reproduce the above copyright
18 // notice, this list of conditions and the following disclaimer in the
19 // documentation and/or other materials provided with the distribution.
20 //
21 // 3. Neither the name of the Corporation nor the names of the
22 // contributors may be used to endorse or promote products derived from
23 // this software without specific prior written permission.
24 //
25 // THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
26 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
29 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
30 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
31 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
32 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
33 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
34 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
35 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 //
37 // Questions? Contact Michael A. Heroux (maherou@sandia.gov)
38 //
39 // ***********************************************************************
40 // @HEADER
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
70 TEUCHOSCORE_LIB_DLL_EXPORT void dyn_cast_throw_exception(
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
T_To & dyn_cast(T_From &from)
Dynamic casting utility function meant to replace dynamic_cast<T&> by throwing a better documented er...
Exception class for bad cast.
Default traits class that just returns typeid(T).name().
The Teuchos namespace contains all of the classes, structs and enums used by Teuchos, as well as a number of utility routines.
Defines basic traits returning the name of a type in a portable and readable way. ...
std::string typeName(const T &t)
Template function for returning the concrete type name of a passed-in object.
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)