LAPACK 3.12.0
LAPACK: Linear Algebra PACKage
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◆ serrlqtp()

subroutine serrlqtp ( character*3  path,
integer  nunit 
)

DERRLQTP

Purpose:
 SERRLQTP 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 serrlqtp.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 REAL A( NMAX, NMAX ), T( NMAX, NMAX ), W( NMAX ),
77 $ B( NMAX, NMAX ), C( NMAX, NMAX )
78* ..
79* .. External Subroutines ..
80 EXTERNAL alaesm, chkxer, stplqt2, stplqt,
81 $ stpmlqt
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 real
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. / real( i+j )
105 c( i, j ) = 1. / real( i+j )
106 t( i, j ) = 1. / real( i+j )
107 END DO
108 w( j ) = 0.
109 END DO
110 ok = .true.
111*
112* Error exits for TPLQT factorization
113*
114* STPLQT
115*
116 srnamt = 'STPLQT'
117 infot = 1
118 CALL stplqt( -1, 1, 0, 1, a, 1, b, 1, t, 1, w, info )
119 CALL chkxer( 'STPLQT', infot, nout, lerr, ok )
120 infot = 2
121 CALL stplqt( 1, -1, 0, 1, a, 1, b, 1, t, 1, w, info )
122 CALL chkxer( 'STPLQT', infot, nout, lerr, ok )
123 infot = 3
124 CALL stplqt( 0, 1, -1, 1, a, 1, b, 1, t, 1, w, info )
125 CALL chkxer( 'STPLQT', infot, nout, lerr, ok )
126 infot = 3
127 CALL stplqt( 0, 1, 1, 1, a, 1, b, 1, t, 1, w, info )
128 CALL chkxer( 'STPLQT', infot, nout, lerr, ok )
129 infot = 4
130 CALL stplqt( 0, 1, 0, 0, a, 1, b, 1, t, 1, w, info )
131 CALL chkxer( 'STPLQT', infot, nout, lerr, ok )
132 infot = 4
133 CALL stplqt( 1, 1, 0, 2, a, 1, b, 1, t, 1, w, info )
134 CALL chkxer( 'STPLQT', infot, nout, lerr, ok )
135 infot = 6
136 CALL stplqt( 2, 1, 0, 2, a, 1, b, 1, t, 1, w, info )
137 CALL chkxer( 'STPLQT', infot, nout, lerr, ok )
138 infot = 8
139 CALL stplqt( 2, 1, 0, 1, a, 2, b, 1, t, 1, w, info )
140 CALL chkxer( 'STPLQT', infot, nout, lerr, ok )
141 infot = 10
142 CALL stplqt( 2, 2, 1, 2, a, 2, b, 2, t, 1, w, info )
143 CALL chkxer( 'STPLQT', infot, nout, lerr, ok )
144*
145* STPLQT2
146*
147 srnamt = 'STPLQT2'
148 infot = 1
149 CALL stplqt2( -1, 0, 0, a, 1, b, 1, t, 1, info )
150 CALL chkxer( 'STPLQT2', infot, nout, lerr, ok )
151 infot = 2
152 CALL stplqt2( 0, -1, 0, a, 1, b, 1, t, 1, info )
153 CALL chkxer( 'STPLQT2', infot, nout, lerr, ok )
154 infot = 3
155 CALL stplqt2( 0, 0, -1, a, 1, b, 1, t, 1, info )
156 CALL chkxer( 'STPLQT2', infot, nout, lerr, ok )
157 infot = 5
158 CALL stplqt2( 2, 2, 0, a, 1, b, 2, t, 2, info )
159 CALL chkxer( 'STPLQT2', infot, nout, lerr, ok )
160 infot = 7
161 CALL stplqt2( 2, 2, 0, a, 2, b, 1, t, 2, info )
162 CALL chkxer( 'STPLQT2', infot, nout, lerr, ok )
163 infot = 9
164 CALL stplqt2( 2, 2, 0, a, 2, b, 2, t, 1, info )
165 CALL chkxer( 'STPLQT2', infot, nout, lerr, ok )
166*
167* STPMLQT
168*
169 srnamt = 'STPMLQT'
170 infot = 1
171 CALL stpmlqt( '/', 'N', 0, 0, 0, 0, 1, a, 1, t, 1, b, 1, c, 1,
172 $ w, info )
173 CALL chkxer( 'STPMLQT', infot, nout, lerr, ok )
174 infot = 2
175 CALL stpmlqt( 'L', '/', 0, 0, 0, 0, 1, a, 1, t, 1, b, 1, c, 1,
176 $ w, info )
177 CALL chkxer( 'STPMLQT', infot, nout, lerr, ok )
178 infot = 3
179 CALL stpmlqt( 'L', 'N', -1, 0, 0, 0, 1, a, 1, t, 1, b, 1, c, 1,
180 $ w, info )
181 CALL chkxer( 'STPMLQT', infot, nout, lerr, ok )
182 infot = 4
183 CALL stpmlqt( 'L', 'N', 0, -1, 0, 0, 1, a, 1, t, 1, b, 1, c, 1,
184 $ w, info )
185 CALL chkxer( 'STPMLQT', infot, nout, lerr, ok )
186 infot = 5
187 CALL stpmlqt( 'L', 'N', 0, 0, -1, 0, 1, a, 1, t, 1, b, 1, c, 1,
188 $ w, info )
189 infot = 6
190 CALL stpmlqt( 'L', 'N', 0, 0, 0, -1, 1, a, 1, t, 1, b, 1, c, 1,
191 $ w, info )
192 CALL chkxer( 'STPMLQT', infot, nout, lerr, ok )
193 infot = 7
194 CALL stpmlqt( 'L', 'N', 0, 0, 0, 0, 0, a, 1, t, 1, b, 1, c, 1,
195 $ w, info )
196 CALL chkxer( 'STPMLQT', infot, nout, lerr, ok )
197 infot = 9
198 CALL stpmlqt( 'R', 'N', 2, 2, 2, 1, 1, a, 1, t, 1, b, 1, c, 1,
199 $ w, info )
200 CALL chkxer( 'STPMLQT', infot, nout, lerr, ok )
201 infot = 11
202 CALL stpmlqt( 'R', 'N', 1, 1, 1, 1, 1, a, 1, t, 0, b, 1, c, 1,
203 $ w, info )
204 CALL chkxer( 'STPMLQT', infot, nout, lerr, ok )
205 infot = 13
206 CALL stpmlqt( 'L', 'N', 1, 1, 1, 1, 1, a, 1, t, 1, b, 0, c, 1,
207 $ w, info )
208 CALL chkxer( 'STPMLQT', infot, nout, lerr, ok )
209 infot = 15
210 CALL stpmlqt( 'L', 'N', 1, 1, 1, 1, 1, a, 1, t, 1, b, 1, c, 0,
211 $ w, info )
212 CALL chkxer( 'STPMLQT', infot, nout, lerr, ok )
213*
214* Print a summary line.
215*
216 CALL alaesm( path, ok, nout )
217*
218 RETURN
219*
220* End of SERRLQTP
221*
alaesm
subroutine alaesm(path, ok, nout)
ALAESM
Definition alaesm.f:63
chkxer
subroutine chkxer(srnamt, infot, nout, lerr, ok)
Definition cblat2.f:3224
stplqt2
subroutine stplqt2(m, n, l, a, lda, b, ldb, t, ldt, info)
STPLQT2 computes a LQ factorization of a real or complex "triangular-pentagonal" matrix,...
Definition stplqt2.f:177
stplqt
subroutine stplqt(m, n, l, mb, a, lda, b, ldb, t, ldt, work, info)
STPLQT
Definition stplqt.f:189
stpmlqt
subroutine stpmlqt(side, trans, m, n, k, l, mb, v, ldv, t, ldt, a, lda, b, ldb, work, info)
STPMLQT
Definition stpmlqt.f:214
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