What version of Objective-C am I using?

Question

How do I tell what version of Objective-C I'm using? I'm using a Mac with xCode. The reason I ask is because i have a book "Objective-C 3.0" and it says that you can declare an multidimensional array like this.

int[,] num = new int[2,2];

When I try to do this I get a syntax error. Do I need to import another header other than foundation?

In C#, Multi-dimensional arrays are rarely the right tool for the job. What do you want to do with that array? — Joel Coehoorn, Aug 26 '09 at 00:48

score 6 · Answer 1 · answered Aug 26 '09 at 00:21

6

Have you tried changing

new int[2.2]

to

new int[2,2]

?

answered Aug 26 '09 at 00:21

Walt W

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Yeah, I think this is right, it's probably just a typo in the book. – Andy White Aug 26 '09 at 00:22
+1, this is right, if it's from a book then it's a typo. It'd be humourous (or a nightmare) to implement an array that used floating point indices though... – Matthew Scharley Aug 26 '09 at 00:26
1

Continuous tables! Yay integrals! – Walt W Aug 26 '09 at 00:27

score 0 · Answer 2 · answered Aug 26 '09 at 00:27

0

I think Walt's answer is right, but here's a good resource for determining which version of C# you're using with your .NET install (thanks to Jon Skeet's "C# In Depth" book!):

http://csharpindepth.com/Articles/Chapter1/Versions.aspx

answered Aug 26 '09 at 00:27

Andy White

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score 0 · Answer 3 · answered Aug 26 '09 at 01:36

0

Are you sure that you are programming in C# and not Objective C? Importing foundation is something you would do in Objective C, not C#.

answered Aug 26 '09 at 01:36

shf301

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Yeah, I'm using Objective C. Thanks for clearing that up for me :) – Aug 29 '09 at 21:35

What version of Objective-C am I using?

3 Answers3

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