On May 27, 2013, at 10:46 PM, Oleg Krupnov <oleg.krup...@gmail.com> wrote:

> Now, the problem is that sometimes when I try to get a value from the
> table, the MapTableKeyComparator function is not called at all, and
> NSMapGet returns NULL, thought immediate dump of the table shows that
> all previous records are perfectly present in the table. 

Probably because you haven’t implemented a hash function, only an equals 
function. I’m guessing NSMapTable’s default hash function merely hashes the key 
pointer itself, which means that if you pass it a different pointer to an equal 
C string, it won’t find anything.

—Jens

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