C+
C NAME:
C	CvI4
C PURPOSE:
C	Convert integer*4 numbers between VMS, DOS & UNIX
C CALLING SEQUENCE:
	subroutine CvI4(cOp,N,XX)
C INPUTS:
C	cOp	character*3	operating system where the numbers originated
C	N	integer		# elements in XX
C	XX(N)	integer*4	array
C OUTPUTS:
C	XX(N)	integer*4	converted array
C RESTRICTIONS:
C	cOp should correspond to an entry in the include file 'dirspec.h'.
C INCLUDE:
	include		'dirspec.h'
C CALLS:
C	CvSwap
C PROCEDURE:
C	Byte swapping
C-
	    character	cOp*3
	    integer	N
	    integer	XX(*)

	parameter	(nb = 4)

	!-------
	! Convert from Unix to Linux/DOS/VMS or back by flipping the order of the bytes

	if ( (cOp .eq. OS__UNIX .and. cOpSys .ne. OS__UNIX) .or.
     &	     (cOp .ne. OS__UNIX .and. cOpSys .eq. OS__UNIX) ) call CvSwap(1,nb,N,XX)

	return
	end