LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ derrlqtp()

subroutine derrlqtp ( character*3  PATH,
integer  NUNIT 
)

DERRLQTP

Purpose:
 DERRLQTP tests the error exits for the REAL routines
 that use the LQT decomposition of a triangular-pentagonal 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 derrlqtp.f.

55  IMPLICIT NONE
56 *
57 * -- LAPACK test routine --
58 * -- LAPACK is a software package provided by Univ. of Tennessee, --
59 * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
60 *
61 * .. Scalar Arguments ..
62  CHARACTER*3 PATH
63  INTEGER NUNIT
64 * ..
65 *
66 * =====================================================================
67 *
68 * .. Parameters ..
69  INTEGER NMAX
70  parameter( nmax = 2 )
71 * ..
72 * .. Local Scalars ..
73  INTEGER I, INFO, J
74 * ..
75 * .. Local Arrays ..
76  DOUBLE PRECISION A( NMAX, NMAX ), T( NMAX, NMAX ), W( NMAX ),
77  $ B( NMAX, NMAX ), C( NMAX, NMAX )
78 * ..
79 * .. External Subroutines ..
80  EXTERNAL alaesm, chkxer, dtplqt2, dtplqt,
81  $ dtpmlqt
82 * ..
83 * .. Scalars in Common ..
84  LOGICAL LERR, OK
85  CHARACTER*32 SRNAMT
86  INTEGER INFOT, NOUT
87 * ..
88 * .. Common blocks ..
89  COMMON / infoc / infot, nout, ok, lerr
90  COMMON / srnamc / srnamt
91 * ..
92 * .. Intrinsic Functions ..
93  INTRINSIC dble
94 * ..
95 * .. Executable Statements ..
96 *
97  nout = nunit
98  WRITE( nout, fmt = * )
99 *
100 * Set the variables to innocuous values.
101 *
102  DO j = 1, nmax
103  DO i = 1, nmax
104  a( i, j ) = 1.d0 / dble( i+j )
105  c( i, j ) = 1.d0 / dble( i+j )
106  t( i, j ) = 1.d0 / dble( i+j )
107  END DO
108  w( j ) = 0.0
109  END DO
110  ok = .true.
111 *
112 * Error exits for TPLQT factorization
113 *
114 * DTPLQT
115 *
116  srnamt = 'DTPLQT'
117  infot = 1
118  CALL dtplqt( -1, 1, 0, 1, a, 1, b, 1, t, 1, w, info )
119  CALL chkxer( 'DTPLQT', infot, nout, lerr, ok )
120  infot = 2
121  CALL dtplqt( 1, -1, 0, 1, a, 1, b, 1, t, 1, w, info )
122  CALL chkxer( 'DTPLQT', infot, nout, lerr, ok )
123  infot = 3
124  CALL dtplqt( 0, 1, -1, 1, a, 1, b, 1, t, 1, w, info )
125  CALL chkxer( 'DTPLQT', infot, nout, lerr, ok )
126  infot = 3
127  CALL dtplqt( 0, 1, 1, 1, a, 1, b, 1, t, 1, w, info )
128  CALL chkxer( 'DTPLQT', infot, nout, lerr, ok )
129  infot = 4
130  CALL dtplqt( 0, 1, 0, 0, a, 1, b, 1, t, 1, w, info )
131  CALL chkxer( 'DTPLQT', infot, nout, lerr, ok )
132  infot = 4
133  CALL dtplqt( 1, 1, 0, 2, a, 1, b, 1, t, 1, w, info )
134  CALL chkxer( 'DTPLQT', infot, nout, lerr, ok )
135  infot = 6
136  CALL dtplqt( 2, 1, 0, 2, a, 1, b, 1, t, 1, w, info )
137  CALL chkxer( 'DTPLQT', infot, nout, lerr, ok )
138  infot = 8
139  CALL dtplqt( 2, 1, 0, 1, a, 2, b, 1, t, 1, w, info )
140  CALL chkxer( 'DTPLQT', infot, nout, lerr, ok )
141  infot = 10
142  CALL dtplqt( 2, 2, 1, 2, a, 2, b, 2, t, 1, w, info )
143  CALL chkxer( 'DTPLQT', infot, nout, lerr, ok )
144 *
145 * DTPLQT2
146 *
147  srnamt = 'DTPLQT2'
148  infot = 1
149  CALL dtplqt2( -1, 0, 0, a, 1, b, 1, t, 1, info )
150  CALL chkxer( 'DTPLQT2', infot, nout, lerr, ok )
151  infot = 2
152  CALL dtplqt2( 0, -1, 0, a, 1, b, 1, t, 1, info )
153  CALL chkxer( 'DTPLQT2', infot, nout, lerr, ok )
154  infot = 3
155  CALL dtplqt2( 0, 0, -1, a, 1, b, 1, t, 1, info )
156  CALL chkxer( 'DTPLQT2', infot, nout, lerr, ok )
157  infot = 5
158  CALL dtplqt2( 2, 2, 0, a, 1, b, 2, t, 2, info )
159  CALL chkxer( 'DTPLQT2', infot, nout, lerr, ok )
160  infot = 7
161  CALL dtplqt2( 2, 2, 0, a, 2, b, 1, t, 2, info )
162  CALL chkxer( 'DTPLQT2', infot, nout, lerr, ok )
163  infot = 9
164  CALL dtplqt2( 2, 2, 0, a, 2, b, 2, t, 1, info )
165  CALL chkxer( 'DTPLQT2', infot, nout, lerr, ok )
166 *
167 * DTPMLQT
168 *
169  srnamt = 'DTPMLQT'
170  infot = 1
171  CALL dtpmlqt( '/', 'N', 0, 0, 0, 0, 1, a, 1, t, 1, b, 1, c, 1,
172  $ w, info )
173  CALL chkxer( 'DTPMLQT', infot, nout, lerr, ok )
174  infot = 2
175  CALL dtpmlqt( 'L', '/', 0, 0, 0, 0, 1, a, 1, t, 1, b, 1, c, 1,
176  $ w, info )
177  CALL chkxer( 'DTPMLQT', infot, nout, lerr, ok )
178  infot = 3
179  CALL dtpmlqt( 'L', 'N', -1, 0, 0, 0, 1, a, 1, t, 1, b, 1, c, 1,
180  $ w, info )
181  CALL chkxer( 'DTPMLQT', infot, nout, lerr, ok )
182  infot = 4
183  CALL dtpmlqt( 'L', 'N', 0, -1, 0, 0, 1, a, 1, t, 1, b, 1, c, 1,
184  $ w, info )
185  CALL chkxer( 'DTPMLQT', infot, nout, lerr, ok )
186  infot = 5
187  CALL dtpmlqt( 'L', 'N', 0, 0, -1, 0, 1, a, 1, t, 1, b, 1, c, 1,
188  $ w, info )
189  infot = 6
190  CALL dtpmlqt( 'L', 'N', 0, 0, 0, -1, 1, a, 1, t, 1, b, 1, c, 1,
191  $ w, info )
192  CALL chkxer( 'DTPMLQT', infot, nout, lerr, ok )
193  infot = 7
194  CALL dtpmlqt( 'L', 'N', 0, 0, 0, 0, 0, a, 1, t, 1, b, 1, c, 1,
195  $ w, info )
196  CALL chkxer( 'DTPMLQT', infot, nout, lerr, ok )
197  infot = 9
198  CALL dtpmlqt( 'R', 'N', 2, 2, 2, 1, 1, a, 1, t, 1, b, 1, c, 1,
199  $ w, info )
200  CALL chkxer( 'DTPMLQT', infot, nout, lerr, ok )
201  infot = 11
202  CALL dtpmlqt( 'R', 'N', 1, 1, 1, 1, 1, a, 1, t, 0, b, 1, c, 1,
203  $ w, info )
204  CALL chkxer( 'DTPMLQT', infot, nout, lerr, ok )
205  infot = 13
206  CALL dtpmlqt( 'L', 'N', 1, 1, 1, 1, 1, a, 1, t, 1, b, 0, c, 1,
207  $ w, info )
208  CALL chkxer( 'DTPMLQT', infot, nout, lerr, ok )
209  infot = 15
210  CALL dtpmlqt( 'L', 'N', 1, 1, 1, 1, 1, a, 1, t, 1, b, 1, c, 0,
211  $ w, info )
212  CALL chkxer( 'DTPMLQT', infot, nout, lerr, ok )
213 *
214 * Print a summary line.
215 *
216  CALL alaesm( path, ok, nout )
217 *
218  RETURN
219 *
220 * End of DERRLQTP
221 *
subroutine chkxer(SRNAMT, INFOT, NOUT, LERR, OK)
Definition: cblat2.f:3196
subroutine alaesm(PATH, OK, NOUT)
ALAESM
Definition: alaesm.f:63
subroutine dtplqt(M, N, L, MB, A, LDA, B, LDB, T, LDT, WORK, INFO)
DTPLQT
Definition: dtplqt.f:189
subroutine dtplqt2(M, N, L, A, LDA, B, LDB, T, LDT, INFO)
DTPLQT2 computes a LQ factorization of a real or complex "triangular-pentagonal" matrix,...
Definition: dtplqt2.f:177
subroutine dtpmlqt(SIDE, TRANS, M, N, K, L, MB, V, LDV, T, LDT, A, LDA, B, LDB, WORK, INFO)
DTPMLQT
Definition: dtpmlqt.f:214
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