Virtual Destructors | C++ Tutorial

Рет қаралды 2,835

2 жыл бұрын

How and why to use virtual destructors in C++, including why they are very important to prevent memory leak bugs. Source code: github.com/portfoliocourses/c.... Check out www.portfoliocourses.com to build a portfolio that will impress employers!

Пікірлер: 19

@wlcrutch Жыл бұрын

Dude, thank you! Super clear! 🙏🏻🙏🏻🙏🏻

@PortfolioCourses Жыл бұрын

You're welcome! :-)

@variancewithin Жыл бұрын

your videos are criminally underrated.

@PortfolioCourses Жыл бұрын

I'm glad you think so! :-)

@jaissonmonteiro9232 5 ай бұрын

Sorry my English, I am Brazilian 😅 anyway thanks for c++ tutorial playlist, I am learning so much with it 🤝👏🚀

@PortfolioCourses 5 ай бұрын

Awesome! :-)

@mihirjog2707 2 ай бұрын

So is it a good practice to have your base class destructors always virtual, even if you're not using polymorphism? So that if we're to use it in future, we'll be safe?

@snowandl4195 2 жыл бұрын

I think you're like Bob Ross but in programming

@PortfolioCourses 2 жыл бұрын

Hahahahaha that makes me really happy that you would say that! :-D I actually love having a Bob Ross video on in the background when I'm programming.

@Emmanuel_Morris Жыл бұрын

Thanks,Sir.🙌🏾

@PortfolioCourses Жыл бұрын

You're welcome Emmanuel! :-)

@xturki5741 Жыл бұрын

u are the best

@PortfolioCourses Жыл бұрын

Aww thanks for the kind feedback! :-)

@akashislam9127 Жыл бұрын

can we use delete [] array; to free the array instated of a loop?

@PortfolioCourses Жыл бұрын

Great question Akash! :-) Because we allocates space using new (instead of new []), we de-allocate the space using delete (instead of delete []). To do otherwise would result in undefined behavior in C++: stackoverflow.com/a/2425749.

@Victor-fl8ex 2 жыл бұрын

To be honest, I have watched this video many times but there is something that still doesnt make sense to me: Why would you create a derivedclass objetct using a Base class pointer? what would it be useful for?

@PortfolioCourses 2 жыл бұрын

Polymorphism is the reason, it can allow us to have an array of pointers to different types of child objects, with a loop working through the objects and calling each object's member functions. The binding of those function calls can be dynamic, which means each object can have its own 'behaviour' according to its type. Writing code like this can allow us to remove code duplication, and though it may not seem like it, it can actually be more understandable code in the long run too! This video talks about polymorphism more: kzfaq.info/get/bejne/Y6yFm6pqnc7IfH0.html

@Victor-fl8ex 2 жыл бұрын

@@PortfolioCourses Now it makes sense. Thanks sir!

@PortfolioCourses 2 жыл бұрын

You’re welcome! :-)