c     kspectrum (http://www.meso-star.com/en_Products.html) - This file is part of kspectrum
c     Copyright (C) 2008-2015 - Méso-Star - Vincent Eymet
c     
c     This file must be used under the terms of the CeCILL license.
c     This source file is licensed as described in the file COPYING, which
c     you should have received as part of this distribution.  The terms
c     are also available at
c     http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
c     
      subroutine add_slash_if_absent(st)
      implicit none
      include 'max.inc'

      integer strlen
      character*(Nchar_mx) st
      character*1 last

      last=st(strlen(st):strlen(st))
c      write(*,*) 'last character: ',last

      if (last.ne.'/') then
         st=st(1:strlen(st))//'/'
      endif


      return
      end