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The result of assigning a value of an array element may be incorrect due to incorrect optimization of code associated with the array index. The incorrect behavior may not be observed when executing the code under the debugger or if certain statement(s) are executed prior to the assignment.

To circumvent the incorrect behavior, set the (undocumented) system option CGOPTIMIZE to 0. For example:

   OPTIONS CGOPTIMIZE=0;

The following code provides an example of the incorrect behavior:

   data x;
     input i;
   datalines;
   3
   ;

   data _null_;
     array a[3] (1,2,3);
     i = 2;
     a[i] = -99;
     /* uncomment this statement to obtain correct results */
     *i = 100;
     set x;
     put i=;
     y = a[i];
     put y=;
   run;

A Technical Support hot fix for Release 8.2 (TS2M0) for this issue is
available at:

http://www.sas.com/techsup/download/hotfix/82_sbcs_prod_list.html#011805

For customers running SAS with Asian Language Support (DBCS), this hot
fix should be downloaded from:

http://www.sas.com/techsup/download/hotfix/82_dbcs_prod_list.html#011805

Operating System and Release Information

A fix for Release 8.2 (TS2M0) for this issue is available at:

A fix for Release 8.2 (TS2M0) with Asian Language Support (DBCS) for this issue is available at: