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Does Objective-C have an even shorter way of writing this line of code?
a = b ? b : c;
That is, a way to say, a is equal to b as long it is not nil, else c. This is like Ruby’s operator ||=
Does the following work for you:
(This syntax is a GNU extension to C, so you might have to use the GCC and not LLVM – http://gcc.gnu.org/onlinedocs/gcc-3.2.3/gcc/Conditionals.html#Conditionals).