On 1/29/23 22:09, RTM wrote:
> On Saturday, 28 January 2023 at 23:19:35 UTC, ProtectAndHide wrote:
>
>> That is, you can do OOP without classes
>
> How so?
OOP is about putting objects (data) and behavior (functions) together.
> Every OOP definition includes classes
OOP is possible in C, which does not have classes:
void sing(Animal * animal);
That top-level sing function will do something like this:
animal->sing(animal);
Every object has their own sing function pointer as a member. (Or one
can go to a vtbl pointer approach with different pros and cons; I used
all of this as an interview topic at some point.)
Programming languages just make it easy.
> (encapsulation + inheritance).
Encapsulation is available even in C as well. Inheritance can be
achieved manually.
And I used C just because it does not provide any special OOP features.
Ali
