RkGoTo - change the current clause
#include <canna/RK.h>
int RkGoTo(cxnum, bnum)
int cxnum;
int bnum;
RkGoTo sets the clause with the specified clause number bnum as
the current clause. The clause number must be 0 or greater but less than the
last clause number. The current clause does not change when a clause number
outside this range is specified.
If successful, this function moves the current clause in the context and returns
the current clause number after the move. It returns 0, without
doing anything, if it has been run in a nonconversion mode context.