Re: Proposal: RBBI, support multiple rule status values

Andy Heninger wrote:
> A capacity of zero, or a NULL pointer for the vec parameter would cause 
> the function to return the number of matching rules (the number of 
> available status values), without returning the status values themselves.

A NULL pointer with a non-zero capacity is not normally allowed: 
http://oss.software.ibm.com/icu/userguide/strings.html#preflight

markus