3 * =========== DOCUMENTATION ===========
5 * Online html documentation available at
6 * http://www.netlib.org/lapack/explore-html/
11 * SUBROUTINE ZERRGT( PATH, NUNIT )
13 * .. Scalar Arguments ..
24 *> ZERRGT tests the error exits for the COMPLEX*16 tridiagonal
33 *> PATH is CHARACTER*3
34 *> The LAPACK path name for the routines to be tested.
40 *> The unit number for output.
46 *> \author Univ. of Tennessee
47 *> \author Univ. of California Berkeley
48 *> \author Univ. of Colorado Denver
51 *> \date November 2011
53 *> \ingroup complex16_lin
55 * =====================================================================
56 SUBROUTINE ZERRGT( PATH, NUNIT )
58 * -- LAPACK test routine (version 3.4.0) --
59 * -- LAPACK is a software package provided by Univ. of Tennessee, --
60 * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
63 * .. Scalar Arguments ..
68 * =====================================================================
72 PARAMETER ( NMAX = 2 )
77 DOUBLE PRECISION ANORM, RCOND
81 DOUBLE PRECISION D( NMAX ), DF( NMAX ), R1( NMAX ), R2( NMAX ),
83 COMPLEX*16 B( NMAX ), DL( NMAX ), DLF( NMAX ), DU( NMAX ),
84 $ DU2( NMAX ), DUF( NMAX ), E( NMAX ),
85 $ EF( NMAX ), W( NMAX ), X( NMAX )
87 * .. External Functions ..
91 * .. External Subroutines ..
92 EXTERNAL ALAESM, CHKXER, ZGTCON, ZGTRFS, ZGTTRF, ZGTTRS,
93 $ ZPTCON, ZPTRFS, ZPTTRF, ZPTTRS
95 * .. Scalars in Common ..
100 * .. Common blocks ..
101 COMMON / INFOC / INFOT, NOUT, OK, LERR
102 COMMON / SRNAMC / SRNAMT
104 * .. Executable Statements ..
107 WRITE( NOUT, FMT = * )
118 IF( LSAMEN( 2, C2, 'GT' ) ) THEN
120 * Test error exits for the general tridiagonal routines.
126 CALL ZGTTRF( -1, DL, E, DU, DU2, IP, INFO )
127 CALL CHKXER( 'ZGTTRF', INFOT, NOUT, LERR, OK )
133 CALL ZGTTRS( '/', 0, 0, DL, E, DU, DU2, IP, X, 1, INFO )
134 CALL CHKXER( 'ZGTTRS', INFOT, NOUT, LERR, OK )
136 CALL ZGTTRS( 'N', -1, 0, DL, E, DU, DU2, IP, X, 1, INFO )
137 CALL CHKXER( 'ZGTTRS', INFOT, NOUT, LERR, OK )
139 CALL ZGTTRS( 'N', 0, -1, DL, E, DU, DU2, IP, X, 1, INFO )
140 CALL CHKXER( 'ZGTTRS', INFOT, NOUT, LERR, OK )
142 CALL ZGTTRS( 'N', 2, 1, DL, E, DU, DU2, IP, X, 1, INFO )
143 CALL CHKXER( 'ZGTTRS', INFOT, NOUT, LERR, OK )
149 CALL ZGTRFS( '/', 0, 0, DL, E, DU, DLF, EF, DUF, DU2, IP, B, 1,
150 $ X, 1, R1, R2, W, RW, INFO )
151 CALL CHKXER( 'ZGTRFS', INFOT, NOUT, LERR, OK )
153 CALL ZGTRFS( 'N', -1, 0, DL, E, DU, DLF, EF, DUF, DU2, IP, B,
154 $ 1, X, 1, R1, R2, W, RW, INFO )
155 CALL CHKXER( 'ZGTRFS', INFOT, NOUT, LERR, OK )
157 CALL ZGTRFS( 'N', 0, -1, DL, E, DU, DLF, EF, DUF, DU2, IP, B,
158 $ 1, X, 1, R1, R2, W, RW, INFO )
159 CALL CHKXER( 'ZGTRFS', INFOT, NOUT, LERR, OK )
161 CALL ZGTRFS( 'N', 2, 1, DL, E, DU, DLF, EF, DUF, DU2, IP, B, 1,
162 $ X, 2, R1, R2, W, RW, INFO )
163 CALL CHKXER( 'ZGTRFS', INFOT, NOUT, LERR, OK )
165 CALL ZGTRFS( 'N', 2, 1, DL, E, DU, DLF, EF, DUF, DU2, IP, B, 2,
166 $ X, 1, R1, R2, W, RW, INFO )
167 CALL CHKXER( 'ZGTRFS', INFOT, NOUT, LERR, OK )
173 CALL ZGTCON( '/', 0, DL, E, DU, DU2, IP, ANORM, RCOND, W,
175 CALL CHKXER( 'ZGTCON', INFOT, NOUT, LERR, OK )
177 CALL ZGTCON( 'I', -1, DL, E, DU, DU2, IP, ANORM, RCOND, W,
179 CALL CHKXER( 'ZGTCON', INFOT, NOUT, LERR, OK )
181 CALL ZGTCON( 'I', 0, DL, E, DU, DU2, IP, -ANORM, RCOND, W,
183 CALL CHKXER( 'ZGTCON', INFOT, NOUT, LERR, OK )
185 ELSE IF( LSAMEN( 2, C2, 'PT' ) ) THEN
187 * Test error exits for the positive definite tridiagonal
194 CALL ZPTTRF( -1, D, E, INFO )
195 CALL CHKXER( 'ZPTTRF', INFOT, NOUT, LERR, OK )
201 CALL ZPTTRS( '/', 1, 0, D, E, X, 1, INFO )
202 CALL CHKXER( 'ZPTTRS', INFOT, NOUT, LERR, OK )
204 CALL ZPTTRS( 'U', -1, 0, D, E, X, 1, INFO )
205 CALL CHKXER( 'ZPTTRS', INFOT, NOUT, LERR, OK )
207 CALL ZPTTRS( 'U', 0, -1, D, E, X, 1, INFO )
208 CALL CHKXER( 'ZPTTRS', INFOT, NOUT, LERR, OK )
210 CALL ZPTTRS( 'U', 2, 1, D, E, X, 1, INFO )
211 CALL CHKXER( 'ZPTTRS', INFOT, NOUT, LERR, OK )
217 CALL ZPTRFS( '/', 1, 0, D, E, DF, EF, B, 1, X, 1, R1, R2, W,
219 CALL CHKXER( 'ZPTRFS', INFOT, NOUT, LERR, OK )
221 CALL ZPTRFS( 'U', -1, 0, D, E, DF, EF, B, 1, X, 1, R1, R2, W,
223 CALL CHKXER( 'ZPTRFS', INFOT, NOUT, LERR, OK )
225 CALL ZPTRFS( 'U', 0, -1, D, E, DF, EF, B, 1, X, 1, R1, R2, W,
227 CALL CHKXER( 'ZPTRFS', INFOT, NOUT, LERR, OK )
229 CALL ZPTRFS( 'U', 2, 1, D, E, DF, EF, B, 1, X, 2, R1, R2, W,
231 CALL CHKXER( 'ZPTRFS', INFOT, NOUT, LERR, OK )
233 CALL ZPTRFS( 'U', 2, 1, D, E, DF, EF, B, 2, X, 1, R1, R2, W,
235 CALL CHKXER( 'ZPTRFS', INFOT, NOUT, LERR, OK )
241 CALL ZPTCON( -1, D, E, ANORM, RCOND, RW, INFO )
242 CALL CHKXER( 'ZPTCON', INFOT, NOUT, LERR, OK )
244 CALL ZPTCON( 0, D, E, -ANORM, RCOND, RW, INFO )
245 CALL CHKXER( 'ZPTCON', INFOT, NOUT, LERR, OK )
248 * Print a summary line.
250 CALL ALAESM( PATH, OK, NOUT )