dalcinl: Thanks, I've fixed the doc wrt writing "int" where I meant
"void *".

As for using "disambiguate" in many places: there are a couple of
sentences that are repeated in the documentation for several functions.
 Those repeated sentences all use "ambiguous" and "disambiguate". 
Having them read almost exactly the same is a subtle cue to the reader,
suggesting they will behave similarly, which is correct.  Is that a problem?