Dumb question(s)

["Jon Paris" <Jon.Paris@xxxxxxxxxxxxxx>]

in order to get a "real" RPG string from a C string pointer, you should
really modify your code as shown below.  %STR is the opposite of the
Options(*String) - it dereferences the C string and strips the null
terminator, padding the receiving field with blanks if required.  No need
for the pointer definition (which could have been omitted anyway since the
use of the Based keyword causes it to be defined) or indeed the Based
keyword on the variable.  Much simpler and I suspect more obvious to anyone
who doesn't understand C functions and pointers since the value no longer
arrives in rtnstr "by magic".  It is clearly being assigned.  It would also
be a nice touch to make the receiving field rtnstr a VARYING field.

 d rtnstr           s           20
 c                 rsnstr = %STR ( founddir ('/') )
 c                 dsplay           rtnstr

Jon Paris
Partner400