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MaxDemian

functions in C++

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Hi, I have some questions about functions in C++. 1)I have seen functions like this:
virtual void MyFunc()=0
My question is... Why =0 ? 2) Functions like this:
void MyFunc() const
void MyFunc() 
What's the diference between both? And in wich case I should use those kind of functions.

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Quote:
Original post by MaxDemian
Hi, I have some questions about functions in C++.

1)I have seen functions like this:

virtual void MyFunc()=0


My question is... Why =0 ?


It is a pure virtual function

Quote:
Original post by MaxDemian
2) Functions like this:

void MyFunc() const

void MyFunc() 


What's the diference between both?


And in wich case I should use those kind of functions.


That is a const member function

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