LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ cerrlq()

subroutine cerrlq ( character*3  PATH,
integer  NUNIT 
)

CERRLQ

Purpose:
 CERRLQ tests the error exits for the COMPLEX routines
 that use the LQ decomposition of a general matrix.
Parameters
[in]PATH
          PATH is CHARACTER*3
          The LAPACK path name for the routines to be tested.
[in]NUNIT
          NUNIT is INTEGER
          The unit number for output.
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date
December 2016

Definition at line 57 of file cerrlq.f.

57 *
58 * -- LAPACK test routine (version 3.7.0) --
59 * -- LAPACK is a software package provided by Univ. of Tennessee, --
60 * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
61 * December 2016
62 *
63 * .. Scalar Arguments ..
64  CHARACTER*3 path
65  INTEGER nunit
66 * ..
67 *
68 * =====================================================================
69 *
70 * .. Parameters ..
71  INTEGER nmax
72  parameter( nmax = 2 )
73 * ..
74 * .. Local Scalars ..
75  INTEGER i, info, j
76 * ..
77 * .. Local Arrays ..
78  COMPLEX a( nmax, nmax ), af( nmax, nmax ), b( nmax ),
79  $ w( nmax ), x( nmax )
80 * ..
81 * .. External Subroutines ..
82  EXTERNAL alaesm, cgelq2, cgelqf, cgelqs, chkxer, cungl2,
83  $ cunglq, cunml2, cunmlq
84 * ..
85 * .. Scalars in Common ..
86  LOGICAL lerr, ok
87  CHARACTER*32 srnamt
88  INTEGER infot, nout
89 * ..
90 * .. Common blocks ..
91  COMMON / infoc / infot, nout, ok, lerr
92  COMMON / srnamc / srnamt
93 * ..
94 * .. Intrinsic Functions ..
95  INTRINSIC cmplx, real
96 * ..
97 * .. Executable Statements ..
98 *
99  nout = nunit
100  WRITE( nout, fmt = * )
101 *
102 * Set the variables to innocuous values.
103 *
104  DO 20 j = 1, nmax
105  DO 10 i = 1, nmax
106  a( i, j ) = cmplx( 1. / REAL( I+J ), -1. / REAL( I+J ) )
107  af( i, j ) = cmplx( 1. / REAL( I+J ), -1. / REAL( I+J ) )
108  10 CONTINUE
109  b( j ) = 0.
110  w( j ) = 0.
111  x( j ) = 0.
112  20 CONTINUE
113  ok = .true.
114 *
115 * Error exits for LQ factorization
116 *
117 * CGELQF
118 *
119  srnamt = 'CGELQF'
120  infot = 1
121  CALL cgelqf( -1, 0, a, 1, b, w, 1, info )
122  CALL chkxer( 'CGELQF', infot, nout, lerr, ok )
123  infot = 2
124  CALL cgelqf( 0, -1, a, 1, b, w, 1, info )
125  CALL chkxer( 'CGELQF', infot, nout, lerr, ok )
126  infot = 4
127  CALL cgelqf( 2, 1, a, 1, b, w, 2, info )
128  CALL chkxer( 'CGELQF', infot, nout, lerr, ok )
129  infot = 7
130  CALL cgelqf( 2, 1, a, 2, b, w, 1, info )
131  CALL chkxer( 'CGELQF', infot, nout, lerr, ok )
132 *
133 * CGELQ2
134 *
135  srnamt = 'CGELQ2'
136  infot = 1
137  CALL cgelq2( -1, 0, a, 1, b, w, info )
138  CALL chkxer( 'CGELQ2', infot, nout, lerr, ok )
139  infot = 2
140  CALL cgelq2( 0, -1, a, 1, b, w, info )
141  CALL chkxer( 'CGELQ2', infot, nout, lerr, ok )
142  infot = 4
143  CALL cgelq2( 2, 1, a, 1, b, w, info )
144  CALL chkxer( 'CGELQ2', infot, nout, lerr, ok )
145 *
146 * CGELQS
147 *
148  srnamt = 'CGELQS'
149  infot = 1
150  CALL cgelqs( -1, 0, 0, a, 1, x, b, 1, w, 1, info )
151  CALL chkxer( 'CGELQS', infot, nout, lerr, ok )
152  infot = 2
153  CALL cgelqs( 0, -1, 0, a, 1, x, b, 1, w, 1, info )
154  CALL chkxer( 'CGELQS', infot, nout, lerr, ok )
155  infot = 2
156  CALL cgelqs( 2, 1, 0, a, 2, x, b, 1, w, 1, info )
157  CALL chkxer( 'CGELQS', infot, nout, lerr, ok )
158  infot = 3
159  CALL cgelqs( 0, 0, -1, a, 1, x, b, 1, w, 1, info )
160  CALL chkxer( 'CGELQS', infot, nout, lerr, ok )
161  infot = 5
162  CALL cgelqs( 2, 2, 0, a, 1, x, b, 2, w, 1, info )
163  CALL chkxer( 'CGELQS', infot, nout, lerr, ok )
164  infot = 8
165  CALL cgelqs( 1, 2, 0, a, 1, x, b, 1, w, 1, info )
166  CALL chkxer( 'CGELQS', infot, nout, lerr, ok )
167  infot = 10
168  CALL cgelqs( 1, 1, 2, a, 1, x, b, 1, w, 1, info )
169  CALL chkxer( 'CGELQS', infot, nout, lerr, ok )
170 *
171 * CUNGLQ
172 *
173  srnamt = 'CUNGLQ'
174  infot = 1
175  CALL cunglq( -1, 0, 0, a, 1, x, w, 1, info )
176  CALL chkxer( 'CUNGLQ', infot, nout, lerr, ok )
177  infot = 2
178  CALL cunglq( 0, -1, 0, a, 1, x, w, 1, info )
179  CALL chkxer( 'CUNGLQ', infot, nout, lerr, ok )
180  infot = 2
181  CALL cunglq( 2, 1, 0, a, 2, x, w, 2, info )
182  CALL chkxer( 'CUNGLQ', infot, nout, lerr, ok )
183  infot = 3
184  CALL cunglq( 0, 0, -1, a, 1, x, w, 1, info )
185  CALL chkxer( 'CUNGLQ', infot, nout, lerr, ok )
186  infot = 3
187  CALL cunglq( 1, 1, 2, a, 1, x, w, 1, info )
188  CALL chkxer( 'CUNGLQ', infot, nout, lerr, ok )
189  infot = 5
190  CALL cunglq( 2, 2, 0, a, 1, x, w, 2, info )
191  CALL chkxer( 'CUNGLQ', infot, nout, lerr, ok )
192  infot = 8
193  CALL cunglq( 2, 2, 0, a, 2, x, w, 1, info )
194  CALL chkxer( 'CUNGLQ', infot, nout, lerr, ok )
195 *
196 * CUNGL2
197 *
198  srnamt = 'CUNGL2'
199  infot = 1
200  CALL cungl2( -1, 0, 0, a, 1, x, w, info )
201  CALL chkxer( 'CUNGL2', infot, nout, lerr, ok )
202  infot = 2
203  CALL cungl2( 0, -1, 0, a, 1, x, w, info )
204  CALL chkxer( 'CUNGL2', infot, nout, lerr, ok )
205  infot = 2
206  CALL cungl2( 2, 1, 0, a, 2, x, w, info )
207  CALL chkxer( 'CUNGL2', infot, nout, lerr, ok )
208  infot = 3
209  CALL cungl2( 0, 0, -1, a, 1, x, w, info )
210  CALL chkxer( 'CUNGL2', infot, nout, lerr, ok )
211  infot = 3
212  CALL cungl2( 1, 1, 2, a, 1, x, w, info )
213  CALL chkxer( 'CUNGL2', infot, nout, lerr, ok )
214  infot = 5
215  CALL cungl2( 2, 2, 0, a, 1, x, w, info )
216  CALL chkxer( 'CUNGL2', infot, nout, lerr, ok )
217 *
218 * CUNMLQ
219 *
220  srnamt = 'CUNMLQ'
221  infot = 1
222  CALL cunmlq( '/', 'N', 0, 0, 0, a, 1, x, af, 1, w, 1, info )
223  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
224  infot = 2
225  CALL cunmlq( 'L', '/', 0, 0, 0, a, 1, x, af, 1, w, 1, info )
226  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
227  infot = 3
228  CALL cunmlq( 'L', 'N', -1, 0, 0, a, 1, x, af, 1, w, 1, info )
229  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
230  infot = 4
231  CALL cunmlq( 'L', 'N', 0, -1, 0, a, 1, x, af, 1, w, 1, info )
232  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
233  infot = 5
234  CALL cunmlq( 'L', 'N', 0, 0, -1, a, 1, x, af, 1, w, 1, info )
235  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
236  infot = 5
237  CALL cunmlq( 'L', 'N', 0, 1, 1, a, 1, x, af, 1, w, 1, info )
238  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
239  infot = 5
240  CALL cunmlq( 'R', 'N', 1, 0, 1, a, 1, x, af, 1, w, 1, info )
241  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
242  infot = 7
243  CALL cunmlq( 'L', 'N', 2, 0, 2, a, 1, x, af, 2, w, 1, info )
244  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
245  infot = 7
246  CALL cunmlq( 'R', 'N', 0, 2, 2, a, 1, x, af, 1, w, 1, info )
247  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
248  infot = 10
249  CALL cunmlq( 'L', 'N', 2, 1, 0, a, 2, x, af, 1, w, 1, info )
250  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
251  infot = 12
252  CALL cunmlq( 'L', 'N', 1, 2, 0, a, 1, x, af, 1, w, 1, info )
253  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
254  infot = 12
255  CALL cunmlq( 'R', 'N', 2, 1, 0, a, 1, x, af, 2, w, 1, info )
256  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
257 *
258 * CUNML2
259 *
260  srnamt = 'CUNML2'
261  infot = 1
262  CALL cunml2( '/', 'N', 0, 0, 0, a, 1, x, af, 1, w, info )
263  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
264  infot = 2
265  CALL cunml2( 'L', '/', 0, 0, 0, a, 1, x, af, 1, w, info )
266  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
267  infot = 3
268  CALL cunml2( 'L', 'N', -1, 0, 0, a, 1, x, af, 1, w, info )
269  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
270  infot = 4
271  CALL cunml2( 'L', 'N', 0, -1, 0, a, 1, x, af, 1, w, info )
272  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
273  infot = 5
274  CALL cunml2( 'L', 'N', 0, 0, -1, a, 1, x, af, 1, w, info )
275  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
276  infot = 5
277  CALL cunml2( 'L', 'N', 0, 1, 1, a, 1, x, af, 1, w, info )
278  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
279  infot = 5
280  CALL cunml2( 'R', 'N', 1, 0, 1, a, 1, x, af, 1, w, info )
281  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
282  infot = 7
283  CALL cunml2( 'L', 'N', 2, 1, 2, a, 1, x, af, 2, w, info )
284  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
285  infot = 7
286  CALL cunml2( 'R', 'N', 1, 2, 2, a, 1, x, af, 1, w, info )
287  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
288  infot = 10
289  CALL cunml2( 'L', 'N', 2, 1, 0, a, 2, x, af, 1, w, info )
290  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
291 *
292 * Print a summary line.
293 *
294  CALL alaesm( path, ok, nout )
295 *
296  RETURN
297 *
298 * End of CERRLQ
299 *
subroutine cgelqs(M, N, NRHS, A, LDA, TAU, B, LDB, WORK, LWORK, INFO)
CGELQS
Definition: cgelqs.f:123
subroutine alaesm(PATH, OK, NOUT)
ALAESM
Definition: alaesm.f:65
subroutine cungl2(M, N, K, A, LDA, TAU, WORK, INFO)
CUNGL2 generates all or part of the unitary matrix Q from an LQ factorization determined by cgelqf (u...
Definition: cungl2.f:115
subroutine cunmlq(SIDE, TRANS, M, N, K, A, LDA, TAU, C, LDC, WORK, LWORK, INFO)
CUNMLQ
Definition: cunmlq.f:170
subroutine chkxer(SRNAMT, INFOT, NOUT, LERR, OK)
Definition: cblat2.f:3199
subroutine cgelqf(M, N, A, LDA, TAU, WORK, LWORK, INFO)
CGELQF
Definition: cgelqf.f:137
subroutine cunml2(SIDE, TRANS, M, N, K, A, LDA, TAU, C, LDC, WORK, INFO)
CUNML2 multiplies a general matrix by the unitary matrix from a LQ factorization determined by cgelqf...
Definition: cunml2.f:161
subroutine cgelq2(M, N, A, LDA, TAU, WORK, INFO)
CGELQ2 computes the LQ factorization of a general rectangular matrix using an unblocked algorithm...
Definition: cgelq2.f:123
subroutine cunglq(M, N, K, A, LDA, TAU, WORK, LWORK, INFO)
CUNGLQ
Definition: cunglq.f:129
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