git.m6w6.name Git - m6w6/libmemcached/blob - libtest/exception.hpp

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   3  *  Data Differential YATL (i.e. libtest)  library
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  36
  37 #pragma once
  38
  39 namespace libtest {
  40
  41 class exception : public std::exception
  42 {
  43 public:
  44   exception(const char *file, int line, const char *func);
  45
  46   exception( const exception& );
  47
  48   virtual ~exception() throw();
  49
  50   virtual const char* what() const throw()
  51   {
  52     if (_error_message)
  53     {
  54       return _error_message;
  55     }
  56
  57     return "";
  58   }
  59
  60   void what(size_t, const char*);
  61
  62   size_t length() const
  63   {
  64     return _error_message_size;
  65   }
  66
  67   int line() const
  68   {
  69     return _line;
  70   }
  71
  72   const char* file() const
  73   {
  74     return _file;
  75   }
  76
  77   const char* func() const
  78   {
  79     return _func;
  80   }
  81
  82 protected:
  83   void init(va_list);
  84
  85 private:
  86   int _line;
  87   const char*  _file;
  88   const char* _func;
  89   char* _error_message;
  90   size_t _error_message_size;
  91 };
  92
  93 } // namespace libtest
  94