According to the current CF sources, CFUUIDCreateString() returns an uppercase 
string.

But if I really want to know what I get, I would rather use the libuuid 
functions provided by the system: uuid_unparse_lower() and uuid_unparse_upper().

See man uuid for details.


Le 21 janv. 2014 à 11:21, Markus Spoettl <ms_li...@shiftoption.com> a écrit :

> Hi,
> 
>  up until now I've been assuming that CFUUIDCreateString() returns strings 
> using uppercase letters. There's lots of empirical evidence that it does do 
> that, but nothing in writing.
> 
> NSUUID's -UUIDString documentation also suggests uppercase characters being 
> used, but doesn't commit to it either.
> 
> Anyone with authority here to confirm that assumption?
> 
> Regards
> Markus
> -- 
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