On Aug 11, 2008, at 10:47 AM, Matt Keyes wrote:

Hello again,

In C/C++ and the .NET languages I am used to, I have generally tried to prefix any member variables inside class methods with "this"

i.e. this.m_sMyString = "this is my string";

In Objective-C, this doesn't seem as clear to me (or at least it doesn't compile). For example:

- (id)initWithString:(NSString *) string {
   self.myString = [[NSString alloc] initWithString:string];
}

Hey Matt -

If you prefer this type of explicit reference to an instance variable, this syntax will work:

self->myString = [[NSString alloc] initWithString:string];

Since self is a pointer, you need to use the -> operator. If you're familiar with working with structure members, object members work the same way. The . syntax only applies if you have an actual object instead of a pointer to an object, which you'll really never have in objective-c.

Good Luck -
Jon Hess



Produces an error:

error: request for member 'myString' in something not a structure or union

I am sure this is something very simple and basic I am missing, but any assistance is appreciated.

Thanks,
Matt

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