File: ptrback.f

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scilab 2.2-4
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      subroutine mvptr(topk,il)
C     just for dealing with lists 
      include '../stack.h'
      integer topk ,il
      common / ptkeep / lwk
      lwk= lstk(topk)
      lstk(topk) = il 
      return 
      end 

      subroutine ptrback(topk)
      integer topk 
      include '../stack.h'
      common / ptkeep / lwk
      lstk(topk)=lwk
      return 
      end