Use of undeclared identifier 'arc4random' after Xcode 4.6 update

Question

I just ran the Xcode 4.6 update, and now my project will not compile. I had to fix several C++ errors, but one of my C++ files is still getting this one Use of undeclared identifier 'arc4random'.

Note that arc4random() works elsewhere in the project just fine. (Even in other C++ files!)

I've tried changing it to arc4random_uniform(1), but that doesn't help.

Thanks for reading.

Answer 1

You need to #include <stdlib.h>.