Shulou(Shulou.com)05/31 Report--

This article mainly introduces the relevant knowledge of "what is the way of exception transmission in C++". The editor shows you the operation process through an actual case. The operation method is simple, fast and practical. I hope this article "what is the way of exception transmission in C++" can help you solve the problem.

1. Abnormal transmission of C++. Pass value (by value)

In the process of passing values, there will be a copy of temporary objects, which can not solve the problem of polymorphism, as follows: myexception inherits exception, but can not be correctly called the method of myexception, resulting in the cutting of abnormal objects.

Class myexception:public exception {public: virtual const char* what () throw (); const char* myexception::what () {return "myException";} class A {public: a () {} void f () throw () {throw myexception ();}}; int main () {An a; try {a.f ();} catch (exception exc) {cout

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.