!DECK XGETUA
SUBROUTINE XGETUA (IUNITA, N)
  IMPLICIT NONE
  !***BEGIN PROLOGUE  XGETUA
  !***PURPOSE  Return unit number(s) to which error messages are being
         ! sent.
  !***LIBRARY   SLATEC (XERROR)
  !***CATEGORY  R3C
  !***TYPE      ALL (XGETUA-A)
  !***KEYWORDS  ERROR, XERROR
  !***AUTHOR  Jones, R. E., (SNLA)
  !***DESCRIPTION
  !
  ! Abstract
  !    XGETUA may be called to determine the unit number or numbers
  !    to which error messages are being sent.
  !    These unit numbers may have been set by a CALL to XSETUN,
  !    or a CALL to XSETUA, or may be a default value.
  !
  ! Description of Parameters
  !  --Output--
  !    IUNIT - an array of one to five unit numbers, depending
  !            on the value of N.  A value of zero refers to the
  !            default unit, as defined by the I1MACH machine
  !            constant routine.  Only IUNIT(1),...,IUNIT(N) are
  !            defined by XGETUA.  The values of IUNIT(N+1),...,
  !            IUNIT(5) are not defined (for N .LT. 5) or altered
  !            in any way by XGETUA.
  !    N     - the number of units to which copies of the
  !            error messages are being sent.  N will be in the
  !            range from 1 to 5.
  !
  !***REFERENCES  R. E. Jones and D. K. Kahaner, XERROR, the SLATEC
  !             Error-handling Package, SAND82-0800, Sandia
  !             Laboratories, 1982.
  !***ROUTINES CALLED  J4SAVE
  !***REVISION HISTORY  (YYMMDD)
  !   790801  DATE WRITTEN
  !   861211  REVISION DATE from Version 3.2
  !   891214  Prologue converted to Version 4.0 format.  (BAB)
  !   920501  Reformatted the REFERENCES section.  (WRB)
  !***END PROLOGUE  XGETUA
  DIMENSION IUNITA(5)
  INTEGER :: IUNITA, N, J4SAVE, INDEX, I
  !***FIRST EXECUTABLE STATEMENT  XGETUA
  N = J4SAVE(5,0,.FALSE.)
  DO I=1,N
     INDEX = I+4
     IF (I==1) INDEX = 3
     IUNITA(I) = J4SAVE(INDEX,0,.FALSE.)
  END DO

END SUBROUTINE XGETUA