      subroutine  ccopy(n,dx,incx,dy,incy)
c     same as dcopy but for characters
c     Copyright INRIA
      character*(*)  dx,dy
      integer i,incx,incy,ix,iy,m,mp1,n
c
      if(n.le.0)return
      if(incx.eq.1.and.incy.eq.1)go to 20
c
c        code for unequal increments or equal increments
c          not equal to 1
c
      ix = 1
      iy = 1
      if(incx.lt.0)ix = (-n+1)*incx + 1
      if(incy.lt.0)iy = (-n+1)*incy + 1
      do 10 i = 1,n
        dy(iy:iy) = dx(ix:ix)
        ix = ix + incx
        iy = iy + incy
   10 continue
      return
c
c        code for both increments equal to 1
c
c
c        clean-up loop
c
   20 m = mod(n,7)
      if( m .eq. 0 ) go to 40
      do 30 i = 1,m
        dy(i:i) = dx(i:i)
   30 continue
      if( n .lt. 7 ) return
   40 mp1 = m + 1
      do 50 i = mp1,n,7
        dy(i:i) = dx(i:i)
        dy(i + 1:i+1) = dx(i + 1:i+1)
        dy(i + 2:i+2) = dx(i + 2:i+2)
        dy(i + 3:i+3) = dx(i + 3:i+3)
        dy(i + 4:i+4) = dx(i + 4:i+4)
        dy(i + 5:i+5) = dx(i + 5:i+5)
        dy(i + 6:i+6) = dx(i + 6:i+6)
   50 continue
      return
      end
