1SUBROUTINE LA_TEST_CHBEVX( JOBZ, RANGE, UPLO, N, KD, AB, LDAB, Q, LDQ, &
2     &  VL, VU, IL, IU, ABSTOL, M, W, Z, LDZ, &
3     &  WORK, RWORK, IWORK, IFAIL, INFO )
4!
5!  -- LAPACK95 interface driver routine (version 1.1) --
6!     UNI-C, Denmark;
7!     May 14, 1999
8!
9!  .. Use Statements ..
10      USE LA_PRECISION, ONLY: WP => SP
11      USE F95_LAPACK, ONLY: LA_HBEVX
12!  .. Implicit Statement ..
13      IMPLICIT NONE
14!  .. Scalar Arguments ..
15      INTEGER, INTENT(IN) :: N, LDAB, KD, LDQ, LDZ, IL, IU
16      INTEGER, INTENT(INOUT) :: INFO
17      INTEGER, INTENT(OUT) :: M
18      CHARACTER*1, INTENT(IN) :: UPLO, JOBZ, RANGE
19      REAL(WP), INTENT(IN) :: VL, VU, ABSTOL
20!  .. Array Arguments ..
21      INTEGER, INTENT(OUT) :: IFAIL(1:N)
22      COMPLEX(WP), INTENT(INOUT) :: AB(1:LDAB, 1:N)
23      COMPLEX(WP), INTENT(OUT):: WORK(1 : N), Z(1:LDZ, 1:N), &
24&       Q(1:LDQ,1:N)
25      REAL(WP), INTENT(OUT)::  W(1:N)
26      INTEGER, INTENT(OUT) :: IWORK(1: 5*N)
27      REAL(WP), INTENT(OUT) :: RWORK(1: 7*N)
28!  .. Parameters ..
29      CHARACTER(LEN=8),  PARAMETER :: SRNAME = 'LA_HBEVX'
30      CHARACTER(LEN=14), PARAMETER :: SRNAMT = 'LA_TEST_CHBEVX'
31!  .. Common blocks ..
32      INTEGER :: INFOTC
33      COMMON /LINFO95/ INFOTC
34!  .. Local Scalars ..
35      INTEGER :: I, J, IAB1, IAB2, IW, IZ1, IZ2, IQ1, IQ2, &
36     &  IIL, IIU, IIFAIL
37      REAL(WP) :: IVL, IVU
38      CHARACTER*1 :: IUPLO, IJOBZ, IRANGE
39!  .. Local Arrays ..
40      LOGICAL, SAVE :: CTEST = .TRUE., ETEST = .TRUE.
41      LOGICAL LSAME
42!  .. Executable Statements ..
43      IAB1 = KD+1 ; IAB2 = N; IUPLO = UPLO; IW = N; IJOBZ = JOBZ
44      IZ1 = N; IZ2 = N; IRANGE = RANGE; IVL=VL; IVU=VU; IQ1 = N
45      IQ2 = N; IIL=IL; IIU=IU; IIFAIL=N
46      I = INFO / 100; J = INFO - I*100
47      SELECT CASE(I)
48      CASE (1)
49      IAB1 = -2
50      CASE (2)
51      IW = IW - 1
52      CASE (3)
53      IUPLO = 'T'
54      CASE (4)
55      IZ1 = IZ1 - 1; IJOBZ = 'V'
56      CASE (5)
57      IVL = IVU+1; IJOBZ = 'V'; IRANGE = 'V'
58      CASE (6)
59      IJOBZ = 'V'; IRANGE = 'V'
60      CALL LA_HBEVX( AB(1:IAB1,1:IAB2), W(1 :IW), IUPLO, &
61     &  Z(1:IZ1, 1: IZ2), IVL, IVU, IIL, IIU, M, IFAIL, &
62     &  Q, ABSTOL, INFO )
63      CALL LA_AUX_AA01( I, CTEST, ETEST, SRNAMT )
64      RETURN
65      CASE (7)
66      IJOBZ = 'V'; IRANGE = 'I'
67      IIL = IIU+1
68      CALL LA_HBEVX( AB(1:IAB1,1:IAB2), W(1 :IW), IUPLO, &
69     &  Z(1:IZ1, 1: IZ2), IL=IIL, IU=IIU, M=M, IFAIL=IFAIL(1:IIFAIL),&
70     &  Q=Q(1:IQ1,1:IQ2), ABSTOL=ABSTOL, INFO=INFO )
71      CALL LA_AUX_AA01( I, CTEST, ETEST, SRNAMT )
72      RETURN
73      CASE (8)
74      IJOBZ = 'V'; IRANGE = 'I'
75      IIU = IZ1+1; IIL = IIU
76      CALL LA_HBEVX( AB(1:IAB1,1:IAB2), W(1 :IW), IUPLO, &
77     &  Z(1:IZ1, 1: IZ2), IL=IIL, IU=IIU, M=M, IFAIL=IFAIL(1:IIFAIL),&
78     &  Q=Q(1:IQ1,1:IQ2), ABSTOL=ABSTOL, INFO=INFO )
79      CALL LA_AUX_AA01( I, CTEST, ETEST, SRNAMT )
80      RETURN
81      CASE (10)
82      IIFAIL = IZ1 - 3
83      IJOBZ = 'V'; IRANGE = 'V'
84      CALL LA_HBEVX( AB(1:IAB1,1:IAB2), W(1 :IW), IUPLO,&
85     &  Z(1:IZ1, 1: IZ2), IVL, IVU, M=M, IFAIL=IFAIL(1:IIFAIL),&
86     &  Q=Q(1:IQ1,1:IQ2), ABSTOL=ABSTOL, INFO=INFO )
87      CALL LA_AUX_AA01( I, CTEST, ETEST, SRNAMT )
88      RETURN
89      CASE (11)
90      IJOBZ = 'V'; IRANGE = 'V'
91      IQ1 = IZ1 - 3
92      CALL LA_HBEVX( AB(1:IAB1,1:IAB2), W(1 :IW), IUPLO,&
93     &  Z(1:IZ1, 1: IZ2), IVL, IVU, M=M, IFAIL=IFAIL(1:IIFAIL),&
94     &  Q=Q(1:IQ1,1:IQ2), ABSTOL=ABSTOL, INFO=INFO )
95      CALL LA_AUX_AA01( I, CTEST, ETEST, SRNAMT )
96      RETURN
97      CASE(:-1,9,12:)
98      CALL UESTOP(SRNAMT)
99      END SELECT
100      IF (LSAME (IJOBZ, 'V')) THEN
101        IF(LSAME(IRANGE,'V')) THEN
102          CALL LA_HBEVX( AB(1:IAB1,1:IAB2), W(1 :IW), IUPLO,&
103     &      Z(1:IZ1, 1: IZ2), IVL, IVU, M=M, IFAIL=IFAIL(1:IIFAIL),&
104     &      Q=Q(1:IQ1,1:IQ2), ABSTOL=ABSTOL, INFO=INFO )
105        ELSE IF (LSAME(IRANGE,'I')) THEN
106          CALL LA_HBEVX( AB(1:IAB1,1:IAB2), W(1 :IW), IUPLO, &
107     &      Z(1:IZ1, 1: IZ2), IL=IIL, IU=IIU, M=M, IFAIL=IFAIL(1:IIFAIL),&
108     &      Q=Q(1:IQ1,1:IQ2), ABSTOL=ABSTOL, INFO=INFO )
109        ELSE IF (LSAME(IRANGE,'A')) THEN
110          CALL LA_HBEVX( AB(1:IAB1,1:IAB2), W(1 :IW), IUPLO,&
111     &      Z(1:IZ1, 1: IZ2), M=M, IFAIL=IFAIL(1:IIFAIL), &
112     &      Q=Q(1:IQ1,1:IQ2), ABSTOL=ABSTOL, INFO=INFO )
113        ENDIF
114      ELSE
115        IF (LSAME(IRANGE,'V')) THEN
116          CALL LA_HBEVX( AB(1:IAB1,1:IAB2), W(1 :IW), IUPLO, &
117     &      VL=IVL, VU=IVU, M=M, ABSTOL=ABSTOL, INFO=INFO )
118        ELSE IF (LSAME(IRANGE,'I')) THEN
119          CALL LA_HBEVX( AB(1:IAB1,1:IAB2), W(1 :IW), IUPLO,&
120     &      IL=IIL, IU=IIU, M=M, ABSTOL=ABSTOL, INFO=INFO )
121        ELSE IF (LSAME(IRANGE,'A')) THEN
122          CALL LA_HBEVX( AB(1:IAB1,1:IAB2), W(1 :IW), IUPLO,&
123     &      M=M, ABSTOL=ABSTOL, INFO=INFO )
124        ENDIF
125      ENDIF
126
127      CALL LA_AUX_AA01( I, CTEST, ETEST, SRNAMT )
128    END SUBROUTINE LA_TEST_CHBEVX
129