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!                     version 3; Last Modified: May 7, 2008.
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      subroutine mupdts (sscale,inmemo,n,m,nrz) 1
c
c         arguments
c
      logical sscale,inmemo
      integer n,m,nrz
c----
c
c     On entry:
c       sscale: .true. if scalar initial scaling,
c               .false. if diagonal initial scaling
c       n:      number of variables
c
c     This routine has to return:
c       m:      the number of updates to form the approximate Hessien H,
c       inmemo: .true., if the vectors y and s used to form H are stored
c                  in core memory,
c               .false. otherwise (storage of y and s on disk, for
c                  instance).
c     When inmemo=.false., the routine `dystbl', which stores and
c     restores (y,s) pairs, has to be rewritten.
c
c----
c
      if (sscale) then
          m=(nrz-3*n)/(2*n)
      else
          m=(nrz-4*n)/(2*n)
      endif
      inmemo=.true.
      return
      end