I'm having trouble calling a c function from ruby and haven't been able 
to find a solution using google.

Specifically, I'd like to call functions that receive these three datatypes:

char*
char*[]
byte[]

Swig 1.3 has been great in helping me call a c++ function that uses a 
std::string parameter but the 3 c datatypes mentioned above are eluding me.

Thanks.