LAPACK  3.4.1
LAPACK: Linear Algebra PACKage
derrtr.f
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00001 *> \brief \b DERRTR
00002 *
00003 *  =========== DOCUMENTATION ===========
00004 *
00005 * Online html documentation available at 
00006 *            http://www.netlib.org/lapack/explore-html/ 
00007 *
00008 *  Definition:
00009 *  ===========
00010 *
00011 *       SUBROUTINE DERRTR( PATH, NUNIT )
00012 * 
00013 *       .. Scalar Arguments ..
00014 *       CHARACTER*3        PATH
00015 *       INTEGER            NUNIT
00016 *       ..
00017 *  
00018 *
00019 *> \par Purpose:
00020 *  =============
00021 *>
00022 *> \verbatim
00023 *>
00024 *> DERRTR tests the error exits for the DOUBLE PRECISION triangular
00025 *> routines.
00026 *> \endverbatim
00027 *
00028 *  Arguments:
00029 *  ==========
00030 *
00031 *> \param[in] PATH
00032 *> \verbatim
00033 *>          PATH is CHARACTER*3
00034 *>          The LAPACK path name for the routines to be tested.
00035 *> \endverbatim
00036 *>
00037 *> \param[in] NUNIT
00038 *> \verbatim
00039 *>          NUNIT is INTEGER
00040 *>          The unit number for output.
00041 *> \endverbatim
00042 *
00043 *  Authors:
00044 *  ========
00045 *
00046 *> \author Univ. of Tennessee 
00047 *> \author Univ. of California Berkeley 
00048 *> \author Univ. of Colorado Denver 
00049 *> \author NAG Ltd. 
00050 *
00051 *> \date November 2011
00052 *
00053 *> \ingroup double_lin
00054 *
00055 *  =====================================================================
00056       SUBROUTINE DERRTR( PATH, NUNIT )
00057 *
00058 *  -- LAPACK test routine (version 3.4.0) --
00059 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
00060 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
00061 *     November 2011
00062 *
00063 *     .. Scalar Arguments ..
00064       CHARACTER*3        PATH
00065       INTEGER            NUNIT
00066 *     ..
00067 *
00068 *  =====================================================================
00069 *
00070 *     .. Parameters ..
00071       INTEGER            NMAX
00072       PARAMETER          ( NMAX = 2 )
00073 *     ..
00074 *     .. Local Scalars ..
00075       CHARACTER*2        C2
00076       INTEGER            INFO
00077       DOUBLE PRECISION   RCOND, SCALE
00078 *     ..
00079 *     .. Local Arrays ..
00080       INTEGER            IW( NMAX )
00081       DOUBLE PRECISION   A( NMAX, NMAX ), B( NMAX ), R1( NMAX ),
00082      $                   R2( NMAX ), W( NMAX ), X( NMAX )
00083 *     ..
00084 *     .. External Functions ..
00085       LOGICAL            LSAMEN
00086       EXTERNAL           LSAMEN
00087 *     ..
00088 *     .. External Subroutines ..
00089       EXTERNAL           ALAESM, CHKXER, DLATBS, DLATPS, DLATRS, DTBCON,
00090      $                   DTBRFS, DTBTRS, DTPCON, DTPRFS, DTPTRI, DTPTRS,
00091      $                   DTRCON, DTRRFS, DTRTI2, DTRTRI, DTRTRS
00092 *     ..
00093 *     .. Scalars in Common ..
00094       LOGICAL            LERR, OK
00095       CHARACTER*32       SRNAMT
00096       INTEGER            INFOT, NOUT
00097 *     ..
00098 *     .. Common blocks ..
00099       COMMON             / INFOC / INFOT, NOUT, OK, LERR
00100       COMMON             / SRNAMC / SRNAMT
00101 *     ..
00102 *     .. Executable Statements ..
00103 *
00104       NOUT = NUNIT
00105       WRITE( NOUT, FMT = * )
00106       C2 = PATH( 2: 3 )
00107       A( 1, 1 ) = 1.D0
00108       A( 1, 2 ) = 2.D0
00109       A( 2, 2 ) = 3.D0
00110       A( 2, 1 ) = 4.D0
00111       OK = .TRUE.
00112 *
00113       IF( LSAMEN( 2, C2, 'TR' ) ) THEN
00114 *
00115 *        Test error exits for the general triangular routines.
00116 *
00117 *        DTRTRI
00118 *
00119          SRNAMT = 'DTRTRI'
00120          INFOT = 1
00121          CALL DTRTRI( '/', 'N', 0, A, 1, INFO )
00122          CALL CHKXER( 'DTRTRI', INFOT, NOUT, LERR, OK )
00123          INFOT = 2
00124          CALL DTRTRI( 'U', '/', 0, A, 1, INFO )
00125          CALL CHKXER( 'DTRTRI', INFOT, NOUT, LERR, OK )
00126          INFOT = 3
00127          CALL DTRTRI( 'U', 'N', -1, A, 1, INFO )
00128          CALL CHKXER( 'DTRTRI', INFOT, NOUT, LERR, OK )
00129          INFOT = 5
00130          CALL DTRTRI( 'U', 'N', 2, A, 1, INFO )
00131          CALL CHKXER( 'DTRTRI', INFOT, NOUT, LERR, OK )
00132 *
00133 *        DTRTI2
00134 *
00135          SRNAMT = 'DTRTI2'
00136          INFOT = 1
00137          CALL DTRTI2( '/', 'N', 0, A, 1, INFO )
00138          CALL CHKXER( 'DTRTI2', INFOT, NOUT, LERR, OK )
00139          INFOT = 2
00140          CALL DTRTI2( 'U', '/', 0, A, 1, INFO )
00141          CALL CHKXER( 'DTRTI2', INFOT, NOUT, LERR, OK )
00142          INFOT = 3
00143          CALL DTRTI2( 'U', 'N', -1, A, 1, INFO )
00144          CALL CHKXER( 'DTRTI2', INFOT, NOUT, LERR, OK )
00145          INFOT = 5
00146          CALL DTRTI2( 'U', 'N', 2, A, 1, INFO )
00147          CALL CHKXER( 'DTRTI2', INFOT, NOUT, LERR, OK )
00148 *
00149 *        DTRTRS
00150 *
00151          SRNAMT = 'DTRTRS'
00152          INFOT = 1
00153          CALL DTRTRS( '/', 'N', 'N', 0, 0, A, 1, X, 1, INFO )
00154          CALL CHKXER( 'DTRTRS', INFOT, NOUT, LERR, OK )
00155          INFOT = 2
00156          CALL DTRTRS( 'U', '/', 'N', 0, 0, A, 1, X, 1, INFO )
00157          CALL CHKXER( 'DTRTRS', INFOT, NOUT, LERR, OK )
00158          INFOT = 3
00159          CALL DTRTRS( 'U', 'N', '/', 0, 0, A, 1, X, 1, INFO )
00160          CALL CHKXER( 'DTRTRS', INFOT, NOUT, LERR, OK )
00161          INFOT = 4
00162          CALL DTRTRS( 'U', 'N', 'N', -1, 0, A, 1, X, 1, INFO )
00163          CALL CHKXER( 'DTRTRS', INFOT, NOUT, LERR, OK )
00164          INFOT = 5
00165          CALL DTRTRS( 'U', 'N', 'N', 0, -1, A, 1, X, 1, INFO )
00166          CALL CHKXER( 'DTRTRS', INFOT, NOUT, LERR, OK )
00167          INFOT = 7
00168          CALL DTRTRS( 'U', 'N', 'N', 2, 1, A, 1, X, 2, INFO )
00169          CALL CHKXER( 'DTRTRS', INFOT, NOUT, LERR, OK )
00170          INFOT = 9
00171          CALL DTRTRS( 'U', 'N', 'N', 2, 1, A, 2, X, 1, INFO )
00172          CALL CHKXER( 'DTRTRS', INFOT, NOUT, LERR, OK )
00173 *
00174 *        DTRRFS
00175 *
00176          SRNAMT = 'DTRRFS'
00177          INFOT = 1
00178          CALL DTRRFS( '/', 'N', 'N', 0, 0, A, 1, B, 1, X, 1, R1, R2, W,
00179      $                IW, INFO )
00180          CALL CHKXER( 'DTRRFS', INFOT, NOUT, LERR, OK )
00181          INFOT = 2
00182          CALL DTRRFS( 'U', '/', 'N', 0, 0, A, 1, B, 1, X, 1, R1, R2, W,
00183      $                IW, INFO )
00184          CALL CHKXER( 'DTRRFS', INFOT, NOUT, LERR, OK )
00185          INFOT = 3
00186          CALL DTRRFS( 'U', 'N', '/', 0, 0, A, 1, B, 1, X, 1, R1, R2, W,
00187      $                IW, INFO )
00188          CALL CHKXER( 'DTRRFS', INFOT, NOUT, LERR, OK )
00189          INFOT = 4
00190          CALL DTRRFS( 'U', 'N', 'N', -1, 0, A, 1, B, 1, X, 1, R1, R2, W,
00191      $                IW, INFO )
00192          CALL CHKXER( 'DTRRFS', INFOT, NOUT, LERR, OK )
00193          INFOT = 5
00194          CALL DTRRFS( 'U', 'N', 'N', 0, -1, A, 1, B, 1, X, 1, R1, R2, W,
00195      $                IW, INFO )
00196          CALL CHKXER( 'DTRRFS', INFOT, NOUT, LERR, OK )
00197          INFOT = 7
00198          CALL DTRRFS( 'U', 'N', 'N', 2, 1, A, 1, B, 2, X, 2, R1, R2, W,
00199      $                IW, INFO )
00200          CALL CHKXER( 'DTRRFS', INFOT, NOUT, LERR, OK )
00201          INFOT = 9
00202          CALL DTRRFS( 'U', 'N', 'N', 2, 1, A, 2, B, 1, X, 2, R1, R2, W,
00203      $                IW, INFO )
00204          CALL CHKXER( 'DTRRFS', INFOT, NOUT, LERR, OK )
00205          INFOT = 11
00206          CALL DTRRFS( 'U', 'N', 'N', 2, 1, A, 2, B, 2, X, 1, R1, R2, W,
00207      $                IW, INFO )
00208          CALL CHKXER( 'DTRRFS', INFOT, NOUT, LERR, OK )
00209 *
00210 *        DTRCON
00211 *
00212          SRNAMT = 'DTRCON'
00213          INFOT = 1
00214          CALL DTRCON( '/', 'U', 'N', 0, A, 1, RCOND, W, IW, INFO )
00215          CALL CHKXER( 'DTRCON', INFOT, NOUT, LERR, OK )
00216          INFOT = 2
00217          CALL DTRCON( '1', '/', 'N', 0, A, 1, RCOND, W, IW, INFO )
00218          CALL CHKXER( 'DTRCON', INFOT, NOUT, LERR, OK )
00219          INFOT = 3
00220          CALL DTRCON( '1', 'U', '/', 0, A, 1, RCOND, W, IW, INFO )
00221          CALL CHKXER( 'DTRCON', INFOT, NOUT, LERR, OK )
00222          INFOT = 4
00223          CALL DTRCON( '1', 'U', 'N', -1, A, 1, RCOND, W, IW, INFO )
00224          CALL CHKXER( 'DTRCON', INFOT, NOUT, LERR, OK )
00225          INFOT = 6
00226          CALL DTRCON( '1', 'U', 'N', 2, A, 1, RCOND, W, IW, INFO )
00227          CALL CHKXER( 'DTRCON', INFOT, NOUT, LERR, OK )
00228 *
00229 *        DLATRS
00230 *
00231          SRNAMT = 'DLATRS'
00232          INFOT = 1
00233          CALL DLATRS( '/', 'N', 'N', 'N', 0, A, 1, X, SCALE, W, INFO )
00234          CALL CHKXER( 'DLATRS', INFOT, NOUT, LERR, OK )
00235          INFOT = 2
00236          CALL DLATRS( 'U', '/', 'N', 'N', 0, A, 1, X, SCALE, W, INFO )
00237          CALL CHKXER( 'DLATRS', INFOT, NOUT, LERR, OK )
00238          INFOT = 3
00239          CALL DLATRS( 'U', 'N', '/', 'N', 0, A, 1, X, SCALE, W, INFO )
00240          CALL CHKXER( 'DLATRS', INFOT, NOUT, LERR, OK )
00241          INFOT = 4
00242          CALL DLATRS( 'U', 'N', 'N', '/', 0, A, 1, X, SCALE, W, INFO )
00243          CALL CHKXER( 'DLATRS', INFOT, NOUT, LERR, OK )
00244          INFOT = 5
00245          CALL DLATRS( 'U', 'N', 'N', 'N', -1, A, 1, X, SCALE, W, INFO )
00246          CALL CHKXER( 'DLATRS', INFOT, NOUT, LERR, OK )
00247          INFOT = 7
00248          CALL DLATRS( 'U', 'N', 'N', 'N', 2, A, 1, X, SCALE, W, INFO )
00249          CALL CHKXER( 'DLATRS', INFOT, NOUT, LERR, OK )
00250 *
00251       ELSE IF( LSAMEN( 2, C2, 'TP' ) ) THEN
00252 *
00253 *        Test error exits for the packed triangular routines.
00254 *
00255 *        DTPTRI
00256 *
00257          SRNAMT = 'DTPTRI'
00258          INFOT = 1
00259          CALL DTPTRI( '/', 'N', 0, A, INFO )
00260          CALL CHKXER( 'DTPTRI', INFOT, NOUT, LERR, OK )
00261          INFOT = 2
00262          CALL DTPTRI( 'U', '/', 0, A, INFO )
00263          CALL CHKXER( 'DTPTRI', INFOT, NOUT, LERR, OK )
00264          INFOT = 3
00265          CALL DTPTRI( 'U', 'N', -1, A, INFO )
00266          CALL CHKXER( 'DTPTRI', INFOT, NOUT, LERR, OK )
00267 *
00268 *        DTPTRS
00269 *
00270          SRNAMT = 'DTPTRS'
00271          INFOT = 1
00272          CALL DTPTRS( '/', 'N', 'N', 0, 0, A, X, 1, INFO )
00273          CALL CHKXER( 'DTPTRS', INFOT, NOUT, LERR, OK )
00274          INFOT = 2
00275          CALL DTPTRS( 'U', '/', 'N', 0, 0, A, X, 1, INFO )
00276          CALL CHKXER( 'DTPTRS', INFOT, NOUT, LERR, OK )
00277          INFOT = 3
00278          CALL DTPTRS( 'U', 'N', '/', 0, 0, A, X, 1, INFO )
00279          CALL CHKXER( 'DTPTRS', INFOT, NOUT, LERR, OK )
00280          INFOT = 4
00281          CALL DTPTRS( 'U', 'N', 'N', -1, 0, A, X, 1, INFO )
00282          CALL CHKXER( 'DTPTRS', INFOT, NOUT, LERR, OK )
00283          INFOT = 5
00284          CALL DTPTRS( 'U', 'N', 'N', 0, -1, A, X, 1, INFO )
00285          CALL CHKXER( 'DTPTRS', INFOT, NOUT, LERR, OK )
00286          INFOT = 8
00287          CALL DTPTRS( 'U', 'N', 'N', 2, 1, A, X, 1, INFO )
00288          CALL CHKXER( 'DTPTRS', INFOT, NOUT, LERR, OK )
00289 *
00290 *        DTPRFS
00291 *
00292          SRNAMT = 'DTPRFS'
00293          INFOT = 1
00294          CALL DTPRFS( '/', 'N', 'N', 0, 0, A, B, 1, X, 1, R1, R2, W, IW,
00295      $                INFO )
00296          CALL CHKXER( 'DTPRFS', INFOT, NOUT, LERR, OK )
00297          INFOT = 2
00298          CALL DTPRFS( 'U', '/', 'N', 0, 0, A, B, 1, X, 1, R1, R2, W, IW,
00299      $                INFO )
00300          CALL CHKXER( 'DTPRFS', INFOT, NOUT, LERR, OK )
00301          INFOT = 3
00302          CALL DTPRFS( 'U', 'N', '/', 0, 0, A, B, 1, X, 1, R1, R2, W, IW,
00303      $                INFO )
00304          CALL CHKXER( 'DTPRFS', INFOT, NOUT, LERR, OK )
00305          INFOT = 4
00306          CALL DTPRFS( 'U', 'N', 'N', -1, 0, A, B, 1, X, 1, R1, R2, W,
00307      $                IW, INFO )
00308          CALL CHKXER( 'DTPRFS', INFOT, NOUT, LERR, OK )
00309          INFOT = 5
00310          CALL DTPRFS( 'U', 'N', 'N', 0, -1, A, B, 1, X, 1, R1, R2, W,
00311      $                IW, INFO )
00312          CALL CHKXER( 'DTPRFS', INFOT, NOUT, LERR, OK )
00313          INFOT = 8
00314          CALL DTPRFS( 'U', 'N', 'N', 2, 1, A, B, 1, X, 2, R1, R2, W, IW,
00315      $                INFO )
00316          CALL CHKXER( 'DTPRFS', INFOT, NOUT, LERR, OK )
00317          INFOT = 10
00318          CALL DTPRFS( 'U', 'N', 'N', 2, 1, A, B, 2, X, 1, R1, R2, W, IW,
00319      $                INFO )
00320          CALL CHKXER( 'DTPRFS', INFOT, NOUT, LERR, OK )
00321 *
00322 *        DTPCON
00323 *
00324          SRNAMT = 'DTPCON'
00325          INFOT = 1
00326          CALL DTPCON( '/', 'U', 'N', 0, A, RCOND, W, IW, INFO )
00327          CALL CHKXER( 'DTPCON', INFOT, NOUT, LERR, OK )
00328          INFOT = 2
00329          CALL DTPCON( '1', '/', 'N', 0, A, RCOND, W, IW, INFO )
00330          CALL CHKXER( 'DTPCON', INFOT, NOUT, LERR, OK )
00331          INFOT = 3
00332          CALL DTPCON( '1', 'U', '/', 0, A, RCOND, W, IW, INFO )
00333          CALL CHKXER( 'DTPCON', INFOT, NOUT, LERR, OK )
00334          INFOT = 4
00335          CALL DTPCON( '1', 'U', 'N', -1, A, RCOND, W, IW, INFO )
00336          CALL CHKXER( 'DTPCON', INFOT, NOUT, LERR, OK )
00337 *
00338 *        DLATPS
00339 *
00340          SRNAMT = 'DLATPS'
00341          INFOT = 1
00342          CALL DLATPS( '/', 'N', 'N', 'N', 0, A, X, SCALE, W, INFO )
00343          CALL CHKXER( 'DLATPS', INFOT, NOUT, LERR, OK )
00344          INFOT = 2
00345          CALL DLATPS( 'U', '/', 'N', 'N', 0, A, X, SCALE, W, INFO )
00346          CALL CHKXER( 'DLATPS', INFOT, NOUT, LERR, OK )
00347          INFOT = 3
00348          CALL DLATPS( 'U', 'N', '/', 'N', 0, A, X, SCALE, W, INFO )
00349          CALL CHKXER( 'DLATPS', INFOT, NOUT, LERR, OK )
00350          INFOT = 4
00351          CALL DLATPS( 'U', 'N', 'N', '/', 0, A, X, SCALE, W, INFO )
00352          CALL CHKXER( 'DLATPS', INFOT, NOUT, LERR, OK )
00353          INFOT = 5
00354          CALL DLATPS( 'U', 'N', 'N', 'N', -1, A, X, SCALE, W, INFO )
00355          CALL CHKXER( 'DLATPS', INFOT, NOUT, LERR, OK )
00356 *
00357       ELSE IF( LSAMEN( 2, C2, 'TB' ) ) THEN
00358 *
00359 *        Test error exits for the banded triangular routines.
00360 *
00361 *        DTBTRS
00362 *
00363          SRNAMT = 'DTBTRS'
00364          INFOT = 1
00365          CALL DTBTRS( '/', 'N', 'N', 0, 0, 0, A, 1, X, 1, INFO )
00366          CALL CHKXER( 'DTBTRS', INFOT, NOUT, LERR, OK )
00367          INFOT = 2
00368          CALL DTBTRS( 'U', '/', 'N', 0, 0, 0, A, 1, X, 1, INFO )
00369          CALL CHKXER( 'DTBTRS', INFOT, NOUT, LERR, OK )
00370          INFOT = 3
00371          CALL DTBTRS( 'U', 'N', '/', 0, 0, 0, A, 1, X, 1, INFO )
00372          CALL CHKXER( 'DTBTRS', INFOT, NOUT, LERR, OK )
00373          INFOT = 4
00374          CALL DTBTRS( 'U', 'N', 'N', -1, 0, 0, A, 1, X, 1, INFO )
00375          CALL CHKXER( 'DTBTRS', INFOT, NOUT, LERR, OK )
00376          INFOT = 5
00377          CALL DTBTRS( 'U', 'N', 'N', 0, -1, 0, A, 1, X, 1, INFO )
00378          CALL CHKXER( 'DTBTRS', INFOT, NOUT, LERR, OK )
00379          INFOT = 6
00380          CALL DTBTRS( 'U', 'N', 'N', 0, 0, -1, A, 1, X, 1, INFO )
00381          CALL CHKXER( 'DTBTRS', INFOT, NOUT, LERR, OK )
00382          INFOT = 8
00383          CALL DTBTRS( 'U', 'N', 'N', 2, 1, 1, A, 1, X, 2, INFO )
00384          CALL CHKXER( 'DTBTRS', INFOT, NOUT, LERR, OK )
00385          INFOT = 10
00386          CALL DTBTRS( 'U', 'N', 'N', 2, 0, 1, A, 1, X, 1, INFO )
00387          CALL CHKXER( 'DTBTRS', INFOT, NOUT, LERR, OK )
00388 *
00389 *        DTBRFS
00390 *
00391          SRNAMT = 'DTBRFS'
00392          INFOT = 1
00393          CALL DTBRFS( '/', 'N', 'N', 0, 0, 0, A, 1, B, 1, X, 1, R1, R2,
00394      $                W, IW, INFO )
00395          CALL CHKXER( 'DTBRFS', INFOT, NOUT, LERR, OK )
00396          INFOT = 2
00397          CALL DTBRFS( 'U', '/', 'N', 0, 0, 0, A, 1, B, 1, X, 1, R1, R2,
00398      $                W, IW, INFO )
00399          CALL CHKXER( 'DTBRFS', INFOT, NOUT, LERR, OK )
00400          INFOT = 3
00401          CALL DTBRFS( 'U', 'N', '/', 0, 0, 0, A, 1, B, 1, X, 1, R1, R2,
00402      $                W, IW, INFO )
00403          CALL CHKXER( 'DTBRFS', INFOT, NOUT, LERR, OK )
00404          INFOT = 4
00405          CALL DTBRFS( 'U', 'N', 'N', -1, 0, 0, A, 1, B, 1, X, 1, R1, R2,
00406      $                W, IW, INFO )
00407          CALL CHKXER( 'DTBRFS', INFOT, NOUT, LERR, OK )
00408          INFOT = 5
00409          CALL DTBRFS( 'U', 'N', 'N', 0, -1, 0, A, 1, B, 1, X, 1, R1, R2,
00410      $                W, IW, INFO )
00411          CALL CHKXER( 'DTBRFS', INFOT, NOUT, LERR, OK )
00412          INFOT = 6
00413          CALL DTBRFS( 'U', 'N', 'N', 0, 0, -1, A, 1, B, 1, X, 1, R1, R2,
00414      $                W, IW, INFO )
00415          CALL CHKXER( 'DTBRFS', INFOT, NOUT, LERR, OK )
00416          INFOT = 8
00417          CALL DTBRFS( 'U', 'N', 'N', 2, 1, 1, A, 1, B, 2, X, 2, R1, R2,
00418      $                W, IW, INFO )
00419          CALL CHKXER( 'DTBRFS', INFOT, NOUT, LERR, OK )
00420          INFOT = 10
00421          CALL DTBRFS( 'U', 'N', 'N', 2, 1, 1, A, 2, B, 1, X, 2, R1, R2,
00422      $                W, IW, INFO )
00423          CALL CHKXER( 'DTBRFS', INFOT, NOUT, LERR, OK )
00424          INFOT = 12
00425          CALL DTBRFS( 'U', 'N', 'N', 2, 1, 1, A, 2, B, 2, X, 1, R1, R2,
00426      $                W, IW, INFO )
00427          CALL CHKXER( 'DTBRFS', INFOT, NOUT, LERR, OK )
00428 *
00429 *        DTBCON
00430 *
00431          SRNAMT = 'DTBCON'
00432          INFOT = 1
00433          CALL DTBCON( '/', 'U', 'N', 0, 0, A, 1, RCOND, W, IW, INFO )
00434          CALL CHKXER( 'DTBCON', INFOT, NOUT, LERR, OK )
00435          INFOT = 2
00436          CALL DTBCON( '1', '/', 'N', 0, 0, A, 1, RCOND, W, IW, INFO )
00437          CALL CHKXER( 'DTBCON', INFOT, NOUT, LERR, OK )
00438          INFOT = 3
00439          CALL DTBCON( '1', 'U', '/', 0, 0, A, 1, RCOND, W, IW, INFO )
00440          CALL CHKXER( 'DTBCON', INFOT, NOUT, LERR, OK )
00441          INFOT = 4
00442          CALL DTBCON( '1', 'U', 'N', -1, 0, A, 1, RCOND, W, IW, INFO )
00443          CALL CHKXER( 'DTBCON', INFOT, NOUT, LERR, OK )
00444          INFOT = 5
00445          CALL DTBCON( '1', 'U', 'N', 0, -1, A, 1, RCOND, W, IW, INFO )
00446          CALL CHKXER( 'DTBCON', INFOT, NOUT, LERR, OK )
00447          INFOT = 7
00448          CALL DTBCON( '1', 'U', 'N', 2, 1, A, 1, RCOND, W, IW, INFO )
00449          CALL CHKXER( 'DTBCON', INFOT, NOUT, LERR, OK )
00450 *
00451 *        DLATBS
00452 *
00453          SRNAMT = 'DLATBS'
00454          INFOT = 1
00455          CALL DLATBS( '/', 'N', 'N', 'N', 0, 0, A, 1, X, SCALE, W,
00456      $                INFO )
00457          CALL CHKXER( 'DLATBS', INFOT, NOUT, LERR, OK )
00458          INFOT = 2
00459          CALL DLATBS( 'U', '/', 'N', 'N', 0, 0, A, 1, X, SCALE, W,
00460      $                INFO )
00461          CALL CHKXER( 'DLATBS', INFOT, NOUT, LERR, OK )
00462          INFOT = 3
00463          CALL DLATBS( 'U', 'N', '/', 'N', 0, 0, A, 1, X, SCALE, W,
00464      $                INFO )
00465          CALL CHKXER( 'DLATBS', INFOT, NOUT, LERR, OK )
00466          INFOT = 4
00467          CALL DLATBS( 'U', 'N', 'N', '/', 0, 0, A, 1, X, SCALE, W,
00468      $                INFO )
00469          CALL CHKXER( 'DLATBS', INFOT, NOUT, LERR, OK )
00470          INFOT = 5
00471          CALL DLATBS( 'U', 'N', 'N', 'N', -1, 0, A, 1, X, SCALE, W,
00472      $                INFO )
00473          CALL CHKXER( 'DLATBS', INFOT, NOUT, LERR, OK )
00474          INFOT = 6
00475          CALL DLATBS( 'U', 'N', 'N', 'N', 1, -1, A, 1, X, SCALE, W,
00476      $                INFO )
00477          CALL CHKXER( 'DLATBS', INFOT, NOUT, LERR, OK )
00478          INFOT = 8
00479          CALL DLATBS( 'U', 'N', 'N', 'N', 2, 1, A, 1, X, SCALE, W,
00480      $                INFO )
00481          CALL CHKXER( 'DLATBS', INFOT, NOUT, LERR, OK )
00482       END IF
00483 *
00484 *     Print a summary line.
00485 *
00486       CALL ALAESM( PATH, OK, NOUT )
00487 *
00488       RETURN
00489 *
00490 *     End of DERRTR
00491 *
00492       END
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