//
// File   : Exception.hh
//
// Purpose: General exception class
//
// $Id: Exception.hh 8758 2010-09-27 12:16:24Z mathes $
//


/** @file Exception.hh
  * Declaration of class Exception
  * @author H.-J. Mathes, FzK
  */
  
#ifndef _FdUtil_Exception_hh_
#define _FdUtil_Exception_hh_

#ifndef NO_VERSION
# include <FdUtilVersion.hh>
#endif // NO_VERSION

#include <string>
#include <exception>

namespace FdUtil {

/** The (our) general base class for all types of exceptions.
  *
  * Note: In principle this class is not really necessary if we inherit
  *       all our exception classes from std::logic_error and construct
  *       thsi base class properly (using the string argument).
  */
class Exception : public std::exception {
public:
    /** Constructor for the class Exception. 
      * 
      * The object is initialised with the passed string argument.
      */
    Exception(const std::string& what="Exception") throw() 
     : fWhat(what) {}

    /** Destructor of the class Exception.
      */
    ~Exception() throw() {}
    
    /** Return the string contents of the Exception object.
      */
    //virtual const char* What() const { return fWhat.c_str(); }
    
    /** Return the string contents of the Exception object.
      */
    const char* what() const throw() { return fWhat.c_str(); }

private:
    std::string fWhat;
};

} // namespace FdUtil

#endif  // _FdUtil_Exception_hh_