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Forcheck flags unreferenced and unassigned common-block objects


        program comtst
        common /com1/ a, b
        b = 0.
        call sub
        end

        subroutine sub
        common /com1/ a, b
        print *, a
        end




 FORCHECK PC V12.00  MS5 compiler emulation  20-Jan-98  12:15:37  page: 1 
 GLOBCOM2.FOR  /CO


 global program analysis:

   /COM1/, object a
 **[115 E] no value assigned to this item
   /COM1/, object b
 **[110 I] unreferenced

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