LAPACK 3.12.0
LAPACK: Linear Algebra PACKage
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◆ 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*
alaesm
subroutine alaesm(path, ok, nout)
ALAESM
Definition alaesm.f:63
chkxer
subroutine chkxer(srnamt, infot, nout, lerr, ok)
Definition cblat2.f:3224
dtplqt2
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
dtplqt
subroutine dtplqt(m, n, l, mb, a, lda, b, ldb, t, ldt, work, info)
DTPLQT
Definition dtplqt.f:189
dtpmlqt
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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