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zerrls.f
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1*> \brief \b ZERRLS
2*
3* =========== DOCUMENTATION ===========
4*
5* Online html documentation available at
6* http://www.netlib.org/lapack/explore-html/
7*
8* Definition:
9* ===========
10*
11* SUBROUTINE ZERRLS( PATH, NUNIT )
12*
13* .. Scalar Arguments ..
14* CHARACTER*3 PATH
15* INTEGER NUNIT
16* ..
17*
18*
19*> \par Purpose:
20* =============
21*>
22*> \verbatim
23*>
24*> ZERRLS tests the error exits for the COMPLEX*16 least squares
25*> driver routines (ZGELS, CGELSS, CGELSY, CGELSD).
26*> \endverbatim
27*
28* Arguments:
29* ==========
30*
31*> \param[in] PATH
32*> \verbatim
33*> PATH is CHARACTER*3
34*> The LAPACK path name for the routines to be tested.
35*> \endverbatim
36*>
37*> \param[in] NUNIT
38*> \verbatim
39*> NUNIT is INTEGER
40*> The unit number for output.
41*> \endverbatim
42*
43* Authors:
44* ========
45*
46*> \author Univ. of Tennessee
47*> \author Univ. of California Berkeley
48*> \author Univ. of Colorado Denver
49*> \author NAG Ltd.
50*
51*> \ingroup complex16_lin
52*
53* =====================================================================
54 SUBROUTINE zerrls( PATH, NUNIT )
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 CHARACTER*2 C2
73 INTEGER INFO, IRNK
74 DOUBLE PRECISION RCOND
75* ..
76* .. Local Arrays ..
77 INTEGER IP( NMAX )
78 DOUBLE PRECISION RW( NMAX ), S( NMAX )
79 COMPLEX*16 A( NMAX, NMAX ), B( NMAX, NMAX ), W( NMAX )
80* ..
81* .. External Functions ..
82 LOGICAL LSAMEN
83 EXTERNAL lsamen
84* ..
85* .. External Subroutines ..
86 EXTERNAL alaesm, chkxer, zgels, zgelsd, zgelss, zgelsy
87* ..
88* .. Scalars in Common ..
89 LOGICAL LERR, OK
90 CHARACTER*32 SRNAMT
91 INTEGER INFOT, NOUT
92* ..
93* .. Common blocks ..
94 COMMON / infoc / infot, nout, ok, lerr
95 COMMON / srnamc / srnamt
96* ..
97* .. Executable Statements ..
98*
99 nout = nunit
100 c2 = path( 2: 3 )
101 a( 1, 1 ) = ( 1.0d+0, 0.0d+0 )
102 a( 1, 2 ) = ( 2.0d+0, 0.0d+0 )
103 a( 2, 2 ) = ( 3.0d+0, 0.0d+0 )
104 a( 2, 1 ) = ( 4.0d+0, 0.0d+0 )
105 ok = .true.
106 WRITE( nout, fmt = * )
107*
108* Test error exits for the least squares driver routines.
109*
110 IF( lsamen( 2, c2, 'LS' ) ) THEN
111*
112* ZGELS
113*
114 srnamt = 'ZGELS '
115 infot = 1
116 CALL zgels( '/', 0, 0, 0, a, 1, b, 1, w, 1, info )
117 CALL chkxer( 'ZGELS ', infot, nout, lerr, ok )
118 infot = 2
119 CALL zgels( 'N', -1, 0, 0, a, 1, b, 1, w, 1, info )
120 CALL chkxer( 'ZGELS ', infot, nout, lerr, ok )
121 infot = 3
122 CALL zgels( 'N', 0, -1, 0, a, 1, b, 1, w, 1, info )
123 CALL chkxer( 'ZGELS ', infot, nout, lerr, ok )
124 infot = 4
125 CALL zgels( 'N', 0, 0, -1, a, 1, b, 1, w, 1, info )
126 CALL chkxer( 'ZGELS ', infot, nout, lerr, ok )
127 infot = 6
128 CALL zgels( 'N', 2, 0, 0, a, 1, b, 2, w, 2, info )
129 CALL chkxer( 'ZGELS ', infot, nout, lerr, ok )
130 infot = 8
131 CALL zgels( 'N', 2, 0, 0, a, 2, b, 1, w, 2, info )
132 CALL chkxer( 'ZGELS ', infot, nout, lerr, ok )
133 infot = 10
134 CALL zgels( 'N', 1, 1, 0, a, 1, b, 1, w, 1, info )
135 CALL chkxer( 'ZGELS ', infot, nout, lerr, ok )
136*
137* ZGELSS
138*
139 srnamt = 'ZGELSS'
140 infot = 1
141 CALL zgelss( -1, 0, 0, a, 1, b, 1, s, rcond, irnk, w, 1, rw,
142 $ info )
143 CALL chkxer( 'ZGELSS', infot, nout, lerr, ok )
144 infot = 2
145 CALL zgelss( 0, -1, 0, a, 1, b, 1, s, rcond, irnk, w, 1, rw,
146 $ info )
147 CALL chkxer( 'ZGELSS', infot, nout, lerr, ok )
148 infot = 3
149 CALL zgelss( 0, 0, -1, a, 1, b, 1, s, rcond, irnk, w, 1, rw,
150 $ info )
151 CALL chkxer( 'ZGELSS', infot, nout, lerr, ok )
152 infot = 5
153 CALL zgelss( 2, 0, 0, a, 1, b, 2, s, rcond, irnk, w, 2, rw,
154 $ info )
155 CALL chkxer( 'ZGELSS', infot, nout, lerr, ok )
156 infot = 7
157 CALL zgelss( 2, 0, 0, a, 2, b, 1, s, rcond, irnk, w, 2, rw,
158 $ info )
159 CALL chkxer( 'zgelss', INFOT, NOUT, LERR, OK )
160*
161* ZGELSY
162*
163 SRNAMT = 'zgelsy'
164 INFOT = 1
165 CALL ZGELSY( -1, 0, 0, A, 1, B, 1, IP, RCOND, IRNK, W, 10, RW,
166 $ INFO )
167 CALL CHKXER( 'zgelsy', INFOT, NOUT, LERR, OK )
168 INFOT = 2
169 CALL ZGELSY( 0, -1, 0, A, 1, B, 1, IP, RCOND, IRNK, W, 10, RW,
170 $ INFO )
171 CALL CHKXER( 'zgelsy', INFOT, NOUT, LERR, OK )
172 INFOT = 3
173 CALL ZGELSY( 0, 0, -1, A, 1, B, 1, IP, RCOND, IRNK, W, 10, RW,
174 $ INFO )
175 CALL CHKXER( 'zgelsy', INFOT, NOUT, LERR, OK )
176 INFOT = 5
177 CALL ZGELSY( 2, 0, 0, A, 1, B, 2, IP, RCOND, IRNK, W, 10, RW,
178 $ INFO )
179 CALL CHKXER( 'zgelsy', infot, nout, lerr, ok )
180 infot = 7
181 CALL zgelsy( 2, 0, 0, a, 2, b, 1, ip, rcond, irnk, w, 10, rw,
182 $ info )
183 CALL chkxer( 'ZGELSY', infot, nout, lerr, ok )
184 infot = 12
185 CALL zgelsy( 0, 3, 0, a, 1, b, 3, ip, rcond, irnk, w, 1, rw,
186 $ info )
187 CALL chkxer( 'ZGELSY', infot, nout, lerr, ok )
188*
189* ZGELSD
190*
191 srnamt = 'ZGELSD'
192 infot = 1
193 CALL zgelsd( -1, 0, 0, a, 1, b, 1, s, rcond, irnk, w, 10, rw,
194 $ ip, info )
195 CALL chkxer( 'ZGELSD', infot, nout, lerr, ok )
196 infot = 2
197 CALL zgelsd( 0, -1, 0, a, 1, b, 1, s, rcond, irnk, w, 10, rw,
198 $ ip, info )
199 CALL chkxer( 'ZGELSD', infot, nout, lerr, ok )
200 infot = 3
201 CALL zgelsd( 0, 0, -1, a, 1, b, 1, s, rcond, irnk, w, 10, rw,
202 $ ip, info )
203 CALL chkxer( 'ZGELSD', infot, nout, lerr, ok )
204 infot = 5
205 CALL zgelsd( 2, 0, 0, a, 1, b, 2, s, rcond, irnk, w, 10, rw,
206 $ ip, info )
207 CALL chkxer( 'ZGELSD', infot, nout, lerr, ok )
208 infot = 7
209 CALL zgelsd( 2, 0, 0, a, 2, b, 1, s, rcond, irnk, w, 10, rw,
210 $ ip, info )
211 CALL chkxer( 'ZGELSD', infot, nout, lerr, ok )
212 infot = 12
213 CALL zgelsd( 2, 2, 1, a, 2, b, 2, s, rcond, irnk, w, 1, rw, ip,
214 $ info )
215 CALL chkxer( 'zgelsd', INFOT, NOUT, LERR, OK )
216 END IF
217*
218* Print a summary line.
219*
220 CALL ALAESM( PATH, OK, NOUT )
221*
222 RETURN
223*
224* End of ZERRLS
225*
226 END
chkxer
subroutine chkxer(srnamt, infot, nout, lerr, ok)
Definition cblat2.f:3196
alaesm
subroutine alaesm(path, ok, nout)
ALAESM
Definition alaesm.f:63
zgelsy
subroutine zgelsy(m, n, nrhs, a, lda, b, ldb, jpvt, rcond, rank, work, lwork, rwork, info)
ZGELSY solves overdetermined or underdetermined systems for GE matrices
Definition zgelsy.f:210
zgelss
subroutine zgelss(m, n, nrhs, a, lda, b, ldb, s, rcond, rank, work, lwork, rwork, info)
ZGELSS solves overdetermined or underdetermined systems for GE matrices
Definition zgelss.f:178
zgels
subroutine zgels(trans, m, n, nrhs, a, lda, b, ldb, work, lwork, info)
ZGELS solves overdetermined or underdetermined systems for GE matrices
Definition zgels.f:182
zgelsd
subroutine zgelsd(m, n, nrhs, a, lda, b, ldb, s, rcond, rank, work, lwork, rwork, iwork, info)
ZGELSD computes the minimum-norm solution to a linear least squares problem for GE matrices
Definition zgelsd.f:225
zerrls
subroutine zerrls(path, nunit)
ZERRLS
Definition zerrls.f:55