【C++ 自定义异常类】

自定义异常类

 class MyException
 {
 public:
     MyException()
     {
     }
 
     MyException(char* str)
     {         
     	msg = str;
     }
      MyException(MyException& rhs)
     {
         this->msg = rhs.msg;
     }
 
     std::string msg;
 };

抛出异常

 void CallWithException()
 {
     char msg[1024] = { 0 };
     sprintf(msg, "Exception: %s", "shit");
     throw MyException(msg);
 }

捕捉异常

 try
 {
     CallWithException();
 }
 catch (MyException& e)
 {
     cout << e.msg;
 }