1*> \brief \b CERRQRT
2*
3*  =========== DOCUMENTATION ===========
4*
5* Online html documentation available at
6*            http://www.netlib.org/lapack/explore-html/
7*
8*  Definition:
9*  ===========
10*
11*       SUBROUTINE CERRQRT( PATH, NUNIT )
12*
13*       .. Scalar Arguments ..
14*       CHARACTER*3        PATH
15*       INTEGER            NUNIT
16*       ..
17*
18*
19*> \par Purpose:
20*  =============
21*>
22*> \verbatim
23*>
24*> CERRQRT tests the error exits for the COMPLEX routines
25*> that use the QRT decomposition of a general matrix.
26*> \endverbatim
27*
28*  Arguments:
29*  ==========
30*
31*> \param[in] PATH
32*> \verbatim
33*>          PATH is CHARACTER*3
34*>          The LAPACK path name for the routines to be tested.
35*> \endverbatim
36*>
37*> \param[in] NUNIT
38*> \verbatim
39*>          NUNIT is INTEGER
40*>          The unit number for output.
41*> \endverbatim
42*
43*  Authors:
44*  ========
45*
46*> \author Univ. of Tennessee
47*> \author Univ. of California Berkeley
48*> \author Univ. of Colorado Denver
49*> \author NAG Ltd.
50*
51*> \date November 2011
52*
53*> \ingroup complex_lin
54*
55*  =====================================================================
56      SUBROUTINE CERRQRT( PATH, NUNIT )
57      IMPLICIT NONE
58*
59*  -- LAPACK test routine (version 3.4.0) --
60*  -- LAPACK is a software package provided by Univ. of Tennessee,    --
61*  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
62*     November 2011
63*
64*     .. Scalar Arguments ..
65      CHARACTER*3        PATH
66      INTEGER            NUNIT
67*     ..
68*
69*  =====================================================================
70*
71*     .. Parameters ..
72      INTEGER            NMAX
73      PARAMETER          ( NMAX = 2 )
74*     ..
75*     .. Local Scalars ..
76      INTEGER            I, INFO, J
77*     ..
78*     .. Local Arrays ..
79      COMPLEX            A( NMAX, NMAX ), T( NMAX, NMAX ), W( NMAX ),
80     $                   C( NMAX, NMAX )
81*     ..
82*     .. External Subroutines ..
83      EXTERNAL           ALAESM, CHKXER, CGEQRT2, CGEQRT3, CGEQRT,
84     $                   CGEMQRT
85*     ..
86*     .. Scalars in Common ..
87      LOGICAL            LERR, OK
88      CHARACTER*32       SRNAMT
89      INTEGER            INFOT, NOUT
90*     ..
91*     .. Common blocks ..
92      COMMON             / INFOC / INFOT, NOUT, OK, LERR
93      COMMON             / SRNAMC / SRNAMT
94*     ..
95*     .. Intrinsic Functions ..
96      INTRINSIC          FLOAT, CMPLX
97*     ..
98*     .. Executable Statements ..
99*
100      NOUT = NUNIT
101      WRITE( NOUT, FMT = * )
102*
103*     Set the variables to innocuous values.
104*
105      DO J = 1, NMAX
106         DO I = 1, NMAX
107            A( I, J ) = 1.0 / CMPLX( FLOAT(I+J), 0.0 )
108            C( I, J ) = 1.0 / CMPLX( FLOAT(I+J), 0.0 )
109            T( I, J ) = 1.0 / CMPLX( FLOAT(I+J), 0.0 )
110         END DO
111         W( J ) = 0.0
112      END DO
113      OK = .TRUE.
114*
115*     Error exits for QRT factorization
116*
117*     CGEQRT
118*
119      SRNAMT = 'CGEQRT'
120      INFOT = 1
121      CALL CGEQRT( -1, 0, 1, A, 1, T, 1, W, INFO )
122      CALL CHKXER( 'CGEQRT', INFOT, NOUT, LERR, OK )
123      INFOT = 2
124      CALL CGEQRT( 0, -1, 1, A, 1, T, 1, W, INFO )
125      CALL CHKXER( 'CGEQRT', INFOT, NOUT, LERR, OK )
126      INFOT = 3
127      CALL CGEQRT( 0, 0, 0, A, 1, T, 1, W, INFO )
128      CALL CHKXER( 'CGEQRT', INFOT, NOUT, LERR, OK )
129      INFOT = 5
130      CALL CGEQRT( 2, 1, 1, A, 1, T, 1, W, INFO )
131      CALL CHKXER( 'CGEQRT', INFOT, NOUT, LERR, OK )
132      INFOT = 7
133      CALL CGEQRT( 2, 2, 2, A, 2, T, 1, W, INFO )
134      CALL CHKXER( 'CGEQRT', INFOT, NOUT, LERR, OK )
135*
136*     CGEQRT2
137*
138      SRNAMT = 'CGEQRT2'
139      INFOT = 1
140      CALL CGEQRT2( -1, 0, A, 1, T, 1, INFO )
141      CALL CHKXER( 'CGEQRT2', INFOT, NOUT, LERR, OK )
142      INFOT = 2
143      CALL CGEQRT2( 0, -1, A, 1, T, 1, INFO )
144      CALL CHKXER( 'CGEQRT2', INFOT, NOUT, LERR, OK )
145      INFOT = 4
146      CALL CGEQRT2( 2, 1, A, 1, T, 1, INFO )
147      CALL CHKXER( 'CGEQRT2', INFOT, NOUT, LERR, OK )
148      INFOT = 6
149      CALL CGEQRT2( 2, 2, A, 2, T, 1, INFO )
150      CALL CHKXER( 'CGEQRT2', INFOT, NOUT, LERR, OK )
151*
152*     CGEQRT3
153*
154      SRNAMT = 'CGEQRT3'
155      INFOT = 1
156      CALL CGEQRT3( -1, 0, A, 1, T, 1, INFO )
157      CALL CHKXER( 'CGEQRT3', INFOT, NOUT, LERR, OK )
158      INFOT = 2
159      CALL CGEQRT3( 0, -1, A, 1, T, 1, INFO )
160      CALL CHKXER( 'CGEQRT3', INFOT, NOUT, LERR, OK )
161      INFOT = 4
162      CALL CGEQRT3( 2, 1, A, 1, T, 1, INFO )
163      CALL CHKXER( 'CGEQRT3', INFOT, NOUT, LERR, OK )
164      INFOT = 6
165      CALL CGEQRT3( 2, 2, A, 2, T, 1, INFO )
166      CALL CHKXER( 'CGEQRT3', INFOT, NOUT, LERR, OK )
167*
168*     CGEMQRT
169*
170      SRNAMT = 'CGEMQRT'
171      INFOT = 1
172      CALL CGEMQRT( '/', 'N', 0, 0, 0, 1, A, 1, T, 1, C, 1, W, INFO )
173      CALL CHKXER( 'CGEMQRT', INFOT, NOUT, LERR, OK )
174      INFOT = 2
175      CALL CGEMQRT( 'L', '/', 0, 0, 0, 1, A, 1, T, 1, C, 1, W, INFO )
176      CALL CHKXER( 'CGEMQRT', INFOT, NOUT, LERR, OK )
177      INFOT = 3
178      CALL CGEMQRT( 'L', 'N', -1, 0, 0, 1, A, 1, T, 1, C, 1, W, INFO )
179      CALL CHKXER( 'CGEMQRT', INFOT, NOUT, LERR, OK )
180      INFOT = 4
181      CALL CGEMQRT( 'L', 'N', 0, -1, 0, 1, A, 1, T, 1, C, 1, W, INFO )
182      CALL CHKXER( 'CGEMQRT', INFOT, NOUT, LERR, OK )
183      INFOT = 5
184      CALL CGEMQRT( 'L', 'N', 0, 0, -1, 1, A, 1, T, 1, C, 1, W, INFO )
185      CALL CHKXER( 'CGEMQRT', INFOT, NOUT, LERR, OK )
186      INFOT = 5
187      CALL CGEMQRT( 'R', 'N', 0, 0, -1, 1, A, 1, T, 1, C, 1, W, INFO )
188      CALL CHKXER( 'CGEMQRT', INFOT, NOUT, LERR, OK )
189      INFOT = 6
190      CALL CGEMQRT( 'L', 'N', 0, 0, 0, 0, A, 1, T, 1, C, 1, W, INFO )
191      CALL CHKXER( 'CGEMQRT', INFOT, NOUT, LERR, OK )
192      INFOT = 8
193      CALL CGEMQRT( 'R', 'N', 1, 2, 1, 1, A, 1, T, 1, C, 1, W, INFO )
194      CALL CHKXER( 'CGEMQRT', INFOT, NOUT, LERR, OK )
195      INFOT = 8
196      CALL CGEMQRT( 'L', 'N', 2, 1, 1, 1, A, 1, T, 1, C, 1, W, INFO )
197      CALL CHKXER( 'CGEMQRT', INFOT, NOUT, LERR, OK )
198      INFOT = 10
199      CALL CGEMQRT( 'R', 'N', 1, 1, 1, 1, A, 1, T, 0, C, 1, W, INFO )
200      CALL CHKXER( 'CGEMQRT', INFOT, NOUT, LERR, OK )
201      INFOT = 12
202      CALL CGEMQRT( 'L', 'N', 1, 1, 1, 1, A, 1, T, 1, C, 0, W, INFO )
203      CALL CHKXER( 'CGEMQRT', INFOT, NOUT, LERR, OK )
204*
205*     Print a summary line.
206*
207      CALL ALAESM( PATH, OK, NOUT )
208*
209      RETURN
210*
211*     End of CERRQRT
212*
213      END
214