Exception.h

   1 #ifndef UTIL_EXCEPTION_H
   2 #define UTIL_EXCEPTION_H
   3
   4 #include <string>
   5
   6 #ifndef MAXTRACESIZE
   7 #       define MAXTRACESIZE 20
   8 #endif
   9
  10 namespace util {
  11         /*!
  12           \class Exception
  13           \author Tom Haber
  14           $Author: thaber $
  15           $Revision: 1602 $
  16           $Date: 2007-03-23 11:31:02 +0100 (Fri, 23 Mar 2007) $
  17
  18           The class Exception and its subclasses indicate conditions
  19           that a reasonable application might want to catch.
  20         */
  21         class LowLevelException {
  22                 public:
  23                         LowLevelException();
  24                         LowLevelException(const LowLevelException & ex);
  25                         virtual ~LowLevelException();
  26
  27                 public:
  28                         const std::string & message() const;
  29                         void printStackTrace() const;
  30                         void printStackTrace(std::ostream & str) const;
  31
  32                 private:
  33                         void fillInStackTrace();
  34
  35                 protected:
  36                         std::string msg;
  37         #if ! defined(DISABLESTACKTRACE)
  38                         void *callersAddr[MAXTRACESIZE];
  39                         unsigned short trace;
  40         #endif
  41         };
  42
  43         class Exception : public LowLevelException {
  44                 public:
  45                         Exception() {}
  46                         Exception(const char * msg) { this->msg = msg; }
  47                         Exception(const std::string & msg) { this->msg = msg; }
  48         };
  49
  50         /*!
  51                 Returns the error message string of this exception.
  52          */
  53         inline const std::string & LowLevelException::message() const {
  54                 return msg;
  55         }
  56 }
  57 #endif