HEVC Test Model (HM)  HM-16.3
RuntimeError.h
Go to the documentation of this file.
1 /* The copyright in this software is being made available under the BSD
2  * License, included below. This software may be subject to other third party
3  * and contributor rights, including patent rights, and no such rights are
4  * granted under this license.
5  *
6  * Copyright (c) 2010-2015, ITU/ISO/IEC
7  * All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions are met:
11  *
12  * * Redistributions of source code must retain the above copyright notice,
13  * this list of conditions and the following disclaimer.
14  * * Redistributions in binary form must reproduce the above copyright notice,
15  * this list of conditions and the following disclaimer in the documentation
16  * and/or other materials provided with the distribution.
17  * * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
18  * be used to endorse or promote products derived from this software without
19  * specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
31  * THE POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 #ifndef __RUNTIMEERROR__
35 #define __RUNTIMEERROR__
36 
37 #include <sstream>
38 #include <stdexcept>
39 
41 class RuntimeError: public std::runtime_error
42 {
43  public:
44  RuntimeError( ): std::runtime_error( "" ), m_firstWhat( true ) { }
45  virtual ~RuntimeError( ) throw ( ) { }
46 
48  const char * what( ) const throw( )
49  {
50  if( m_firstWhat )
51  {
52  std::ostringstream o;
53  outputWhat( o );
54  m_what = o.str( );
55  m_firstWhat = false;
56  }
57  return m_what.c_str( );
58  }
59 
60  protected:
63  virtual void outputWhat( std::ostream & o ) const =0;
64 
65  private:
66  mutable bool m_firstWhat;
67  mutable std::string m_what;
68 };
69 
71 inline std::ostream& operator<<( std::ostream& left, const RuntimeError& right )
72 {
73  return left << right.what( );
74 }
75 
76 #endif
std::string m_what
Contains the what string. Populated by the first call to the what method.
Definition: RuntimeError.h:67
STL namespace.
std::ostream & operator<<(std::ostream &left, const RuntimeError &right)
Convenient formatted output operator that just outputs the what string.
Definition: RuntimeError.h:71
virtual ~RuntimeError()
Definition: RuntimeError.h:45
const char * what() const
Implementation of the std::exception::what method.
Definition: RuntimeError.h:48
bool m_firstWhat
True i.f.f. the what method has not yet been called.
Definition: RuntimeError.h:66
virtual void outputWhat(std::ostream &o) const =0
This class serves the same purpose as std::runtime_error, but it can be more convenient to use...
Definition: RuntimeError.h:41