SUBROUTINE LA_TEST_CHEEVR( JOBZ, RANGE, UPLO, N, A, LDA, VL, VU, IL, &
     &  IU, ABSTOL, M, W, Z, LDZ, ISUPPZ, WORK, LWORK, RWORK, LRWORK, &
     &  IWORK, LIWORK, INFO )
!
!  -- LAPACK95 interface driver routine (version 1.1) --
!     UNI-C, Denmark;
!     September 11, 1999
!
!  .. Use Statements ..
   USE LA_PRECISION, ONLY: WP => SP
   USE F95_LAPACK, ONLY: LA_HEEVR
!  .. Implicit Statement ..
   IMPLICIT NONE
!  .. Scalar Arguments ..
   INTEGER, INTENT(IN) :: N, LDA, LDZ, IL, IU, LWORK, LIWORK, LRWORK
   REAL(WP), INTENT(IN) ::  ABSTOL, VL, VU
   INTEGER, INTENT(INOUT) :: INFO
   CHARACTER*1, INTENT(IN) :: UPLO, JOBZ, RANGE
!  .. Array Arguments ..
   COMPLEX(WP), INTENT(INOUT) :: A(1:LDA,1:N)
   REAL(WP), INTENT(OUT)::  W(1:N)
      REAL(WP), INTENT (OUT) :: RWORK(1:LRWORK)   
   COMPLEX(WP), INTENT(OUT) ::  WORK(1:LWORK), Z(1:LDZ, 1:MAX(1,N))
   INTEGER, INTENT(OUT) :: IWORK(LIWORK)
   INTEGER, INTENT(OUT) :: ISUPPZ(2*MAX(1,N)), M
!  .. Parameters ..
   CHARACTER(LEN=8),  PARAMETER :: SRNAME = 'LA_HEEVR'
   CHARACTER(LEN=14), PARAMETER :: SRNAMT = 'LA_TEST_CHEEVR'
   LOGICAL LSAME
   EXTERNAL LSAME
!  .. Common blocks ..
   INTEGER :: INFOTC
   COMMON /LINFO95/ INFOTC
!  .. Local Scalars ..
   INTEGER :: I, J, IA1, IA2, IW, IIL, IIU, IZ1, IZ2
   REAL(WP) :: IVU, IVL
   CHARACTER*1 :: IUPLO, IJOBZ   
!  .. Local Arrays ..
   LOGICAL, SAVE :: CTEST = .TRUE., ETEST = .TRUE.
!  .. Executable Statements ..
   IA1 = N; IA2 = N; IUPLO = UPLO; IW = N; IJOBZ = JOBZ
   IVU=VU; IVL = VL; IIL=IL; IIU = IU; IZ1 = MAX(1,N); IZ2 = N
   I = INFO / 100; J = INFO - I*100
   SELECT CASE(I)
     CASE (1)
       IA2 = IA1 - 1
     CASE (2)
       IW = IA1 - 1
     CASE (3)
       IJOBZ = 'T'
       CALL LA_HEEVR( A(1:IA1,1:IA2), W(1 :IW), IJOBZ, IUPLO, &
&        M=M, ISUPPZ=ISUPPZ, ABSTOL=ABSTOL, INFO=INFO )
       CALL LA_AUX_AA01( I, CTEST, ETEST, SRNAMT )
       RETURN
     CASE (4)
       IUPLO = 'T'; IJOBZ='N'
       CALL LA_HEEVR( A(1:IA1,1:IA2), W(1 :IW), UPLO=IUPLO, &
&        M=M, ABSTOL=ABSTOL, INFO=INFO )
       CALL LA_AUX_AA01( I, CTEST, ETEST, SRNAMT )
       RETURN
     CASE (5)
       IVU = IVL - 1
       CALL LA_HEEVR( A(1:IA1,1:IA2), W(1 :IW), IJOBZ, IUPLO, &
     &  VL=IVL, VU=IVU, M=M, ABSTOL=ABSTOL, INFO=INFO )
       CALL LA_AUX_AA01( I, CTEST, ETEST, SRNAMT )
       RETURN
     CASE (6)
       CALL LA_HEEVR( A(1:IA1,1:IA2), W(1 :IW), IJOBZ, IUPLO, &
     &   IVL, IVU, IIL, IIU, M, ISUPPZ, ABSTOL, INFO )
       CALL LA_AUX_AA01( I, CTEST, ETEST, SRNAMT )
       RETURN
     CASE (7)
       IIU = IIL - 1
       CALL LA_HEEVR( A(1:IA1,1:IA2), W(1 :IW), IJOBZ,  IUPLO, &
     &  IL=IIL, IU=IIU, M=M, ABSTOL=ABSTOL, INFO=INFO )
       CALL LA_AUX_AA01( I, CTEST, ETEST, SRNAMT )
       RETURN
     CASE (8)
       IIU = IA1 + 1
       CALL LA_HEEVR( A(1:IA1,1:IA2), W(1 :IW), IJOBZ, IUPLO, &
     &  IL=IIL, IU=IIU, M=M, ABSTOL=ABSTOL, INFO=INFO )
       CALL LA_AUX_AA01( I, CTEST, ETEST, SRNAMT )
       RETURN
     CASE (10)
       IJOBZ='N'
       CALL LA_HEEVR( A(1:IA1,1:IA2), W(1 :IW), IJOBZ, IUPLO, &
&         M=M, ISUPPZ=ISUPPZ, ABSTOL=ABSTOL, INFO=INFO )
       CALL LA_AUX_AA01( I, CTEST, ETEST, SRNAMT )
       RETURN
     CASE(:-1,9,11:)
       CALL UESTOP(SRNAMT)
   END SELECT

   IF (LSAME(RANGE,'A')) THEN
     IF (LSAME(JOBZ, 'V')) THEN
       CALL LA_HEEVR( A(1:IA1,1:IA2), W(1 :IW), IJOBZ,  IUPLO, &
&        M=M, ISUPPZ=ISUPPZ, ABSTOL=ABSTOL, INFO=INFO )
      ELSE
       CALL LA_HEEVR( A(1:IA1,1:IA2), W(1 :IW), UPLO=IUPLO, &
     &   M=M, ABSTOL=ABSTOL, INFO=INFO )
     END IF
   ELSE
     IF (LSAME(RANGE, 'V')) THEN
       IF (LSAME(JOBZ, 'V')) THEN
         CALL LA_HEEVR( A(1:IA1,1:IA2), W(1 :IW), IJOBZ, IUPLO, &
&          IVL, IVU,  M=M, ISUPPZ=ISUPPZ, ABSTOL=ABSTOL, INFO=INFO )
       ELSE
         CALL LA_HEEVR( A(1:IA1,1:IA2), W(1 :IW), UPLO=IUPLO,  &
     &     VL=IVL, VU=IVU,  M=M, ABSTOL=ABSTOL, INFO=INFO )
       END IF
     ELSE
       IF (LSAME(JOBZ, 'V')) THEN
         CALL LA_HEEVR( A(1:IA1,1:IA2), W(1 :IW), IJOBZ, IUPLO, &
     &     IL=IIL, IU=IIU, M=M, ISUPPZ=ISUPPZ, ABSTOL=ABSTOL, INFO=INFO )
       ELSE
         CALL LA_HEEVR( A(1:IA1,1:IA2), W(1 :IW), UPLO=IUPLO, &
     &     IL=IIL, IU=IIU, M=M, ABSTOL=ABSTOL, INFO=INFO )
       ENDIF
     END IF
   ENDIF
   IF(N/=0) Z(1:IA1, 1:M) = A(1:IA1, 1:M)
   CALL LA_AUX_AA01( I, CTEST, ETEST, SRNAMT )
END SUBROUTINE LA_TEST_CHEEVR