Timeline for how to use an object of a class within that same class?
Current License: CC BY-SA 3.0
10 events
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| Jun 17, 2016 at 15:04 | comment | added | JRobert |
@Raed: About "understanding when to use * or ->": *pointer means the thing pointer points to. It could be a simple entity like a number, or a whole bunch (tech term, heh) of entities like an array or a struct or a class. pointer->foo means the member named foo within the thing pointer points to. (In this case the "thing" would have to be a struct, a union, or a class, to have named members).
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| Jun 17, 2016 at 14:39 | history | edited | Code Gorilla | CC BY-SA 3.0 |
Change answer to say you can have a referance within a class.
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| Jun 17, 2016 at 14:34 | comment | added | Code Gorilla | @Raed Its difficult to guess your code, but assuming this is a simple class, I don't think you need to use a * except in the declaration of variables where it declares a pointer. In the code pointer will give you the data that is pointed to by pointer, which you can access with ->. You use new to allocate memory CElement pNewObject = new CElement(); and delete pNewObject should be all you need. However I would recommend that you check that pNewObject has been allocated after the new and before the delete calls. if (!pNewObject) // If not allocated report error. | |
| Jun 17, 2016 at 14:33 | comment | added | John Burger | @Matt Why do you think you can't have it as a reference? It may not be useful (in this instance), but it's certainly legal. | |
| Jun 17, 2016 at 14:30 | comment | added | Code Gorilla | @JohnBurger - Thanks, good spot. My fingers were traveling faster than my brain. Hopefully corrected them now. | |
| Jun 17, 2016 at 14:29 | history | edited | Code Gorilla | CC BY-SA 3.0 |
Typos
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| Jun 17, 2016 at 14:22 | comment | added | Raed | @Matt thanks, I added the forward declaration to my Node class. while i did manage to solve this I'm having a lot of trouble understanding when to use * or -> and new keyWord | |
| Jun 17, 2016 at 13:11 | comment | added | John Burger | Also, check your "Just to be clear" line: you say "you can have your class as a member variable" - you mean "you can't". If you want you can have it as a reference - you imply you can't. | |
| Jun 17, 2016 at 13:10 | comment | added | John Burger |
You don't actually need to pre-declare the class the way you did on your first line: the class CElement is known about by the time the compiler gets to the CElement *m_NextElement; line
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| Jun 17, 2016 at 12:04 | history | answered | Code Gorilla | CC BY-SA 3.0 |