[itistoday]

Ok, 2 questions:

1) in NSArray and multiple other examples, methods are defined as follows:

- (unsigned)count
is unsigned an unsigned int? or what?

2) in NSArray and multiple other examples, id refers to...

- (id)lastObject
shouldn't it be:
- (id *)lastObject
since NSArray holds a bunch of pointers... shouldn't it return a pointer? It can't return an object because it contains none.... What's going on?

Thanks in advance.

[Chuckit]

1. Yes, "unsigned" refers to an unsigned int. (It's really rather pragmatic--an array is never going to have less than 0 objects, and it's never going to have half an object.)

2. The data type id is defined as a pointer to an object. You should read Object-Oriented Programming and the Objective-C Language if you're looking to program in Obj-C. In contains a lot of useful information (such as this) that you'll want to know. It's included with the DevTools at /Developer/Documentation/Cocoa/ObjectiveC/index.html.

[itistoday]

</font><blockquote><font size="1" face="Geneva, Verdana, Arial, sans-serif">quote:</font><hr /><font size="1" face="Geneva, Verdana, Arial, sans-serif">Originally posted by Chuckit:
<strong>1. Yes, "unsigned" refers to an unsigned int. (It's really rather pragmatic--an array is never going to have less than 0 objects, and it's never going to have half an object.)

2. The data type id is defined as a pointer to an object. You should read Object-Oriented Programming and the Objective-C Language if you're looking to program in Obj-C. In contains a lot of useful information (such as this) that you'll want to know. It's included with the DevTools at /Developer/Documentation/Cocoa/ObjectiveC/index.html.</strong></font><hr /></blockquote><font size="1" face="Geneva, Verdana, Arial, sans-serif">thanks chuck.