Because I always forget this stuff, I'm putting it here.
Output of program:
cool
cool
cool
not cool
Because slicing ain't cool.
Last active
June 19, 2020 15:53
-
-
Save mike10004/902ea9c73d30179ea08c8fbb045cf59d to your computer and use it in GitHub Desktop.
Classes and slicing in C++
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #include <iostream> | |
| using namespace std; | |
| class A { | |
| public: | |
| A() = default; | |
| virtual ~A() = default; | |
| virtual void Talk() const { | |
| cout << "not cool" << endl; | |
| } | |
| }; | |
| class B : public A { | |
| public: | |
| B() = default; | |
| ~B() override = default; | |
| void Talk() const override { | |
| cout << "cool" << endl; | |
| } | |
| }; | |
| int main() | |
| { | |
| B thing; | |
| A* ptr = &thing; | |
| A& ref = thing; | |
| A slice = thing; | |
| thing.Talk(); | |
| ptr->Talk(); | |
| ref.Talk(); | |
| slice.Talk(); | |
| return 0; | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment