[arcticmac]

just had to ask... is there a difference between bool and BOOL? both seem to get highlighted by the syntax highlighter in XCode.

[Wevah]

Depends. "bool" might not be defined for straight Objective-C, whereas "BOOL" might not be defined for C++ (though I'm not totally sure about what's defined where, except that BOOL is Obj-C).

It's best to use the one that's "right" for the context, for readability; the same extends to nil vs. NULL for null Obj-C object pointers vs. general C NULLs (etc.).

(At least, this is my best explaination of it (being groggy and all); someone else probably has a better or additional explanation.)

[arcticmac]

sounds good for now... just use BOOL, and don't worry. OK.

[smitty825]

As Wevah said, bool is defined in Obj-C, but not is standard c or c++. In objc.h, BOOL is defined as a "signed char", while a bool in C/C++ standard doesn't have to be any specific size. A BOOl YES value is defined as 1 and a BOOL NO value is defined as 0, which maps well to the true/false in the "bool" world.

Granted as Wevah said...it's best to use BOOL for Obj-C stuff, and bool for C/C++ stuff just for clarity!