The following errors are written to the SAS^® log when an undeclared array is referenced in a SUM statement with the DS2 procedure:

ERROR: TKTSExecDirect failed.

ERROR: Access violation.

To circumvent the problem, declare the array with a VARARRAY statement before referencing the array in the code. The sample code on the Full Code tab illustrates this.

Operating System and Release Information

proc ds2;
   data _null_;
      method run();  
         unassigned[2]+1;
      end;
   run;
quit;


/* Adding the VARARRAY statement prevents the error */
proc ds2;
   data _null_;
      vararray double unassigned[2];
      method run();
         unassigned[2]+1;
      end;
   run;
quit;