text: #ifndef ExceptionBase_H
  #define ExceptionBase_H
  
  #include <sstream>
  
  class ExceptionBase {
  public:
     ExceptionBase (const char* msg);
     ExceptionBase (const ExceptionBase& other);
  
     void append (const char* additionalText);
  
     void appendInt (int i);
  public:
  	std::stringstream msg;
  };
  #endif // end ExceptionBase_H
  
  