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iOS Objective-C Basics (Retired) Pointers and Memory Structs

Laurie Gray
Laurie Gray
23,119 Points

Is a struct kind of like an Object in this example?

I have some javascript experience and am trying to grasp this. Is the struct here like an object from js?

2 Answers

Structs are a C++ construct. In C++, the only difference between structs and classes is that the members in structs are publicly visible by default (while in classes they are private by default).

That being said, most of the times structs are used as pure data containers. If you want to put a bunch of data together (with no methods which act on them) you may want to use a struct.

When you want to add some methods that act upon the data and you also want to have some internal representation that pertains to the said data (you may also want to hide the internal representation from the rest of your system) you will most likely want to use a class definition.

NOTE: you are allowed to define methods inside a struct in C++, but it is not a widely used practice due to the default public member access.

Laurie Gray
Laurie Gray
23,119 Points

Thanks Andrei, Im struggling with this language but its going to be worth it!