LAPACK  3.10.0
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.

Definition at line 54 of file cerrlq.f.

55 *
56 * -- LAPACK test routine --
57 * -- LAPACK is a software package provided by Univ. of Tennessee, --
58 * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
59 *
60 * .. Scalar Arguments ..
61  CHARACTER*3 PATH
62  INTEGER NUNIT
63 * ..
64 *
65 * =====================================================================
66 *
67 * .. Parameters ..
68  INTEGER NMAX
69  parameter( nmax = 2 )
70 * ..
71 * .. Local Scalars ..
72  INTEGER I, INFO, J
73 * ..
74 * .. Local Arrays ..
75  COMPLEX A( NMAX, NMAX ), AF( NMAX, NMAX ), B( NMAX ),
76  $ W( NMAX ), X( NMAX )
77 * ..
78 * .. External Subroutines ..
79  EXTERNAL alaesm, cgelq2, cgelqf, cgelqs, chkxer, cungl2,
80  $ cunglq, cunml2, cunmlq
81 * ..
82 * .. Scalars in Common ..
83  LOGICAL LERR, OK
84  CHARACTER*32 SRNAMT
85  INTEGER INFOT, NOUT
86 * ..
87 * .. Common blocks ..
88  COMMON / infoc / infot, nout, ok, lerr
89  COMMON / srnamc / srnamt
90 * ..
91 * .. Intrinsic Functions ..
92  INTRINSIC cmplx, real
93 * ..
94 * .. Executable Statements ..
95 *
96  nout = nunit
97  WRITE( nout, fmt = * )
98 *
99 * Set the variables to innocuous values.
100 *
101  DO 20 j = 1, nmax
102  DO 10 i = 1, nmax
103  a( i, j ) = cmplx( 1. / real( i+j ), -1. / real( i+j ) )
104  af( i, j ) = cmplx( 1. / real( i+j ), -1. / real( i+j ) )
105  10 CONTINUE
106  b( j ) = 0.
107  w( j ) = 0.
108  x( j ) = 0.
109  20 CONTINUE
110  ok = .true.
111 *
112 * Error exits for LQ factorization
113 *
114 * CGELQF
115 *
116  srnamt = 'CGELQF'
117  infot = 1
118  CALL cgelqf( -1, 0, a, 1, b, w, 1, info )
119  CALL chkxer( 'CGELQF', infot, nout, lerr, ok )
120  infot = 2
121  CALL cgelqf( 0, -1, a, 1, b, w, 1, info )
122  CALL chkxer( 'CGELQF', infot, nout, lerr, ok )
123  infot = 4
124  CALL cgelqf( 2, 1, a, 1, b, w, 2, info )
125  CALL chkxer( 'CGELQF', infot, nout, lerr, ok )
126  infot = 7
127  CALL cgelqf( 2, 1, a, 2, b, w, 1, info )
128  CALL chkxer( 'CGELQF', infot, nout, lerr, ok )
129 *
130 * CGELQ2
131 *
132  srnamt = 'CGELQ2'
133  infot = 1
134  CALL cgelq2( -1, 0, a, 1, b, w, info )
135  CALL chkxer( 'CGELQ2', infot, nout, lerr, ok )
136  infot = 2
137  CALL cgelq2( 0, -1, a, 1, b, w, info )
138  CALL chkxer( 'CGELQ2', infot, nout, lerr, ok )
139  infot = 4
140  CALL cgelq2( 2, 1, a, 1, b, w, info )
141  CALL chkxer( 'CGELQ2', infot, nout, lerr, ok )
142 *
143 * CGELQS
144 *
145  srnamt = 'CGELQS'
146  infot = 1
147  CALL cgelqs( -1, 0, 0, a, 1, x, b, 1, w, 1, info )
148  CALL chkxer( 'CGELQS', infot, nout, lerr, ok )
149  infot = 2
150  CALL cgelqs( 0, -1, 0, a, 1, x, b, 1, w, 1, info )
151  CALL chkxer( 'CGELQS', infot, nout, lerr, ok )
152  infot = 2
153  CALL cgelqs( 2, 1, 0, a, 2, x, b, 1, w, 1, info )
154  CALL chkxer( 'CGELQS', infot, nout, lerr, ok )
155  infot = 3
156  CALL cgelqs( 0, 0, -1, a, 1, x, b, 1, w, 1, info )
157  CALL chkxer( 'CGELQS', infot, nout, lerr, ok )
158  infot = 5
159  CALL cgelqs( 2, 2, 0, a, 1, x, b, 2, w, 1, info )
160  CALL chkxer( 'CGELQS', infot, nout, lerr, ok )
161  infot = 8
162  CALL cgelqs( 1, 2, 0, a, 1, x, b, 1, w, 1, info )
163  CALL chkxer( 'CGELQS', infot, nout, lerr, ok )
164  infot = 10
165  CALL cgelqs( 1, 1, 2, a, 1, x, b, 1, w, 1, info )
166  CALL chkxer( 'CGELQS', infot, nout, lerr, ok )
167 *
168 * CUNGLQ
169 *
170  srnamt = 'CUNGLQ'
171  infot = 1
172  CALL cunglq( -1, 0, 0, a, 1, x, w, 1, info )
173  CALL chkxer( 'CUNGLQ', infot, nout, lerr, ok )
174  infot = 2
175  CALL cunglq( 0, -1, 0, a, 1, x, w, 1, info )
176  CALL chkxer( 'CUNGLQ', infot, nout, lerr, ok )
177  infot = 2
178  CALL cunglq( 2, 1, 0, a, 2, x, w, 2, info )
179  CALL chkxer( 'CUNGLQ', infot, nout, lerr, ok )
180  infot = 3
181  CALL cunglq( 0, 0, -1, a, 1, x, w, 1, info )
182  CALL chkxer( 'CUNGLQ', infot, nout, lerr, ok )
183  infot = 3
184  CALL cunglq( 1, 1, 2, a, 1, x, w, 1, info )
185  CALL chkxer( 'CUNGLQ', infot, nout, lerr, ok )
186  infot = 5
187  CALL cunglq( 2, 2, 0, a, 1, x, w, 2, info )
188  CALL chkxer( 'CUNGLQ', infot, nout, lerr, ok )
189  infot = 8
190  CALL cunglq( 2, 2, 0, a, 2, x, w, 1, info )
191  CALL chkxer( 'CUNGLQ', infot, nout, lerr, ok )
192 *
193 * CUNGL2
194 *
195  srnamt = 'CUNGL2'
196  infot = 1
197  CALL cungl2( -1, 0, 0, a, 1, x, w, info )
198  CALL chkxer( 'CUNGL2', infot, nout, lerr, ok )
199  infot = 2
200  CALL cungl2( 0, -1, 0, a, 1, x, w, info )
201  CALL chkxer( 'CUNGL2', infot, nout, lerr, ok )
202  infot = 2
203  CALL cungl2( 2, 1, 0, a, 2, x, w, info )
204  CALL chkxer( 'CUNGL2', infot, nout, lerr, ok )
205  infot = 3
206  CALL cungl2( 0, 0, -1, a, 1, x, w, info )
207  CALL chkxer( 'CUNGL2', infot, nout, lerr, ok )
208  infot = 3
209  CALL cungl2( 1, 1, 2, a, 1, x, w, info )
210  CALL chkxer( 'CUNGL2', infot, nout, lerr, ok )
211  infot = 5
212  CALL cungl2( 2, 2, 0, a, 1, x, w, info )
213  CALL chkxer( 'CUNGL2', infot, nout, lerr, ok )
214 *
215 * CUNMLQ
216 *
217  srnamt = 'CUNMLQ'
218  infot = 1
219  CALL cunmlq( '/', 'N', 0, 0, 0, a, 1, x, af, 1, w, 1, info )
220  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
221  infot = 2
222  CALL cunmlq( 'L', '/', 0, 0, 0, a, 1, x, af, 1, w, 1, info )
223  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
224  infot = 3
225  CALL cunmlq( 'L', 'N', -1, 0, 0, a, 1, x, af, 1, w, 1, info )
226  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
227  infot = 4
228  CALL cunmlq( 'L', 'N', 0, -1, 0, a, 1, x, af, 1, w, 1, info )
229  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
230  infot = 5
231  CALL cunmlq( 'L', 'N', 0, 0, -1, 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, 1, 1, a, 1, x, af, 1, w, 1, info )
235  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
236  infot = 5
237  CALL cunmlq( 'R', 'N', 1, 0, 1, a, 1, x, af, 1, w, 1, info )
238  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
239  infot = 7
240  CALL cunmlq( 'L', 'N', 2, 0, 2, a, 1, x, af, 2, w, 1, info )
241  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
242  infot = 7
243  CALL cunmlq( 'R', 'N', 0, 2, 2, a, 1, x, af, 1, w, 1, info )
244  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
245  infot = 10
246  CALL cunmlq( 'L', 'N', 2, 1, 0, a, 2, x, af, 1, w, 1, info )
247  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
248  infot = 12
249  CALL cunmlq( 'L', 'N', 1, 2, 0, a, 1, x, af, 1, w, 1, info )
250  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
251  infot = 12
252  CALL cunmlq( 'R', 'N', 2, 1, 0, a, 1, x, af, 2, w, 1, info )
253  CALL chkxer( 'CUNMLQ', infot, nout, lerr, ok )
254 *
255 * CUNML2
256 *
257  srnamt = 'CUNML2'
258  infot = 1
259  CALL cunml2( '/', 'N', 0, 0, 0, a, 1, x, af, 1, w, info )
260  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
261  infot = 2
262  CALL cunml2( 'L', '/', 0, 0, 0, a, 1, x, af, 1, w, info )
263  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
264  infot = 3
265  CALL cunml2( 'L', 'N', -1, 0, 0, a, 1, x, af, 1, w, info )
266  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
267  infot = 4
268  CALL cunml2( 'L', 'N', 0, -1, 0, a, 1, x, af, 1, w, info )
269  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
270  infot = 5
271  CALL cunml2( 'L', 'N', 0, 0, -1, a, 1, x, af, 1, w, info )
272  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
273  infot = 5
274  CALL cunml2( 'L', 'N', 0, 1, 1, a, 1, x, af, 1, w, info )
275  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
276  infot = 5
277  CALL cunml2( 'R', 'N', 1, 0, 1, a, 1, x, af, 1, w, info )
278  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
279  infot = 7
280  CALL cunml2( 'L', 'N', 2, 1, 2, a, 1, x, af, 2, w, info )
281  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
282  infot = 7
283  CALL cunml2( 'R', 'N', 1, 2, 2, a, 1, x, af, 1, w, info )
284  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
285  infot = 10
286  CALL cunml2( 'L', 'N', 2, 1, 0, a, 2, x, af, 1, w, info )
287  CALL chkxer( 'CUNML2', infot, nout, lerr, ok )
288 *
289 * Print a summary line.
290 *
291  CALL alaesm( path, ok, nout )
292 *
293  RETURN
294 *
295 * End of CERRLQ
296 *
subroutine chkxer(SRNAMT, INFOT, NOUT, LERR, OK)
Definition: cblat2.f:3196
subroutine alaesm(PATH, OK, NOUT)
ALAESM
Definition: alaesm.f:63
subroutine cgelqs(M, N, NRHS, A, LDA, TAU, B, LDB, WORK, LWORK, INFO)
CGELQS
Definition: cgelqs.f:121
subroutine cgelqf(M, N, A, LDA, TAU, WORK, LWORK, INFO)
CGELQF
Definition: cgelqf.f:143
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:129
subroutine cunglq(M, N, K, A, LDA, TAU, WORK, LWORK, INFO)
CUNGLQ
Definition: cunglq.f:127
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:159
subroutine cunmlq(SIDE, TRANS, M, N, K, A, LDA, TAU, C, LDC, WORK, LWORK, INFO)
CUNMLQ
Definition: cunmlq.f:168
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:113
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