Pointer Question

[Marky_Mark]

Is there a need for removing pointers after use


ptr = &c;


Marky_Mark

[zen]

You should only have to do anything if they point to data that you've dynamically allocated using new or malloc, in which case you should call delete/free() and then point them to NULL.

[Engineer]

It depends. If you have allocated memory for that pointer using one of the following: malloc(), calloc(), realloc() or new you have to return that memory to the machine eventually - using either free() or delete.

If you don't free the memory you allocated you will wind up with a memory leak, which is a very bad thing and is hard to find.

[Marky_Mark]

I will be using new

What's the correct syntax for freeing objects

Marky_Mark

[Estauns]

delete [] *iPointer;
*iPointer = NULL;

[zen]

It depends on how they're allocated, if you use [] with new (ie create an array), then you should use [] in the delete statement -

delete [] iPointer;

or if you create a single object then just

delete iPointer;

is required.

[Estauns]

My bad, should of clarified that.

[Marky_Mark]

Thanks for clearing that up



Marky_Mark