source: 3DVCSoftware/branches/HTM-6.2-dev1-Samsung/App/utils/BitrateTargeting/RuntimeError.h @ 347

Last change on this file since 347 was 347, checked in by samsung-htm, 11 years ago

D0122 Integration

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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) 2010-2012, 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 DIRECTORY_LIB_RUNTIME_ERROR_H
35#define DIRECTORY_LIB_RUNTIME_ERROR_H
36
37#include <sstream>
38#include <stdexcept>
39
40/// This class serves the same purpose as std::runtime_error, but it can be more convenient to use
41class RuntimeError: public std::runtime_error
42{
43  public:
44    RuntimeError( ): std::runtime_error( "" ), m_firstWhat( true ) { }
45    virtual ~RuntimeError( ) throw ( ) { }
46   
47    /// Implementation of the std::exception::what method
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:
61    /// The implementing class implements this method to customize the what output
62    /// \param o The what stream is outputted to this parameter
63    virtual void outputWhat( std::ostream & o ) const =0;
64 
65  private:
66    mutable bool m_firstWhat;  ///< True i.f.f. the what method has not yet been called
67    mutable std::string m_what;  ///< Contains the what string.  Populated by the first call to the what method.
68};
69
70/// Convenient formatted output operator that just outputs the what string
71inline std::ostream& operator<<( std::ostream& left, const RuntimeError& right )
72{
73  return left << right.what( );
74}
75
76#endif
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