LAPACK  3.4.1
LAPACK: Linear Algebra PACKage
cerrgt.f
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00001 *> \brief \b CERRGT
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 CERRGT( 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 *> CERRGT tests the error exits for the COMPLEX tridiagonal
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 complex_lin
00054 *
00055 *  =====================================================================
00056       SUBROUTINE CERRGT( 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            I, INFO
00077       REAL               ANORM, RCOND
00078 *     ..
00079 *     .. Local Arrays ..
00080       INTEGER            IP( NMAX )
00081       REAL               D( NMAX ), DF( NMAX ), R1( NMAX ), R2( NMAX ),
00082      $                   RW( NMAX )
00083       COMPLEX            B( NMAX ), DL( NMAX ), DLF( NMAX ), DU( NMAX ),
00084      $                   DU2( NMAX ), DUF( NMAX ), E( NMAX ),
00085      $                   EF( NMAX ), W( NMAX ), X( NMAX )
00086 *     ..
00087 *     .. External Functions ..
00088       LOGICAL            LSAMEN
00089       EXTERNAL           LSAMEN
00090 *     ..
00091 *     .. External Subroutines ..
00092       EXTERNAL           ALAESM, CGTCON, CGTRFS, CGTTRF, CGTTRS, CHKXER,
00093      $                   CPTCON, CPTRFS, CPTTRF, CPTTRS
00094 *     ..
00095 *     .. Scalars in Common ..
00096       LOGICAL            LERR, OK
00097       CHARACTER*32       SRNAMT
00098       INTEGER            INFOT, NOUT
00099 *     ..
00100 *     .. Common blocks ..
00101       COMMON             / INFOC / INFOT, NOUT, OK, LERR
00102       COMMON             / SRNAMC / SRNAMT
00103 *     ..
00104 *     .. Executable Statements ..
00105 *
00106       NOUT = NUNIT
00107       WRITE( NOUT, FMT = * )
00108       C2 = PATH( 2: 3 )
00109       DO 10 I = 1, NMAX
00110          D( I ) = 1.
00111          E( I ) = 2.
00112          DL( I ) = 3.
00113          DU( I ) = 4.
00114    10 CONTINUE
00115       ANORM = 1.0
00116       OK = .TRUE.
00117 *
00118       IF( LSAMEN( 2, C2, 'GT' ) ) THEN
00119 *
00120 *        Test error exits for the general tridiagonal routines.
00121 *
00122 *        CGTTRF
00123 *
00124          SRNAMT = 'CGTTRF'
00125          INFOT = 1
00126          CALL CGTTRF( -1, DL, E, DU, DU2, IP, INFO )
00127          CALL CHKXER( 'CGTTRF', INFOT, NOUT, LERR, OK )
00128 *
00129 *        CGTTRS
00130 *
00131          SRNAMT = 'CGTTRS'
00132          INFOT = 1
00133          CALL CGTTRS( '/', 0, 0, DL, E, DU, DU2, IP, X, 1, INFO )
00134          CALL CHKXER( 'CGTTRS', INFOT, NOUT, LERR, OK )
00135          INFOT = 2
00136          CALL CGTTRS( 'N', -1, 0, DL, E, DU, DU2, IP, X, 1, INFO )
00137          CALL CHKXER( 'CGTTRS', INFOT, NOUT, LERR, OK )
00138          INFOT = 3
00139          CALL CGTTRS( 'N', 0, -1, DL, E, DU, DU2, IP, X, 1, INFO )
00140          CALL CHKXER( 'CGTTRS', INFOT, NOUT, LERR, OK )
00141          INFOT = 10
00142          CALL CGTTRS( 'N', 2, 1, DL, E, DU, DU2, IP, X, 1, INFO )
00143          CALL CHKXER( 'CGTTRS', INFOT, NOUT, LERR, OK )
00144 *
00145 *        CGTRFS
00146 *
00147          SRNAMT = 'CGTRFS'
00148          INFOT = 1
00149          CALL CGTRFS( '/', 0, 0, DL, E, DU, DLF, EF, DUF, DU2, IP, B, 1,
00150      $                X, 1, R1, R2, W, RW, INFO )
00151          CALL CHKXER( 'CGTRFS', INFOT, NOUT, LERR, OK )
00152          INFOT = 2
00153          CALL CGTRFS( 'N', -1, 0, DL, E, DU, DLF, EF, DUF, DU2, IP, B,
00154      $                1, X, 1, R1, R2, W, RW, INFO )
00155          CALL CHKXER( 'CGTRFS', INFOT, NOUT, LERR, OK )
00156          INFOT = 3
00157          CALL CGTRFS( 'N', 0, -1, DL, E, DU, DLF, EF, DUF, DU2, IP, B,
00158      $                1, X, 1, R1, R2, W, RW, INFO )
00159          CALL CHKXER( 'CGTRFS', INFOT, NOUT, LERR, OK )
00160          INFOT = 13
00161          CALL CGTRFS( 'N', 2, 1, DL, E, DU, DLF, EF, DUF, DU2, IP, B, 1,
00162      $                X, 2, R1, R2, W, RW, INFO )
00163          CALL CHKXER( 'CGTRFS', INFOT, NOUT, LERR, OK )
00164          INFOT = 15
00165          CALL CGTRFS( 'N', 2, 1, DL, E, DU, DLF, EF, DUF, DU2, IP, B, 2,
00166      $                X, 1, R1, R2, W, RW, INFO )
00167          CALL CHKXER( 'CGTRFS', INFOT, NOUT, LERR, OK )
00168 *
00169 *        CGTCON
00170 *
00171          SRNAMT = 'CGTCON'
00172          INFOT = 1
00173          CALL CGTCON( '/', 0, DL, E, DU, DU2, IP, ANORM, RCOND, W,
00174      $                INFO )
00175          CALL CHKXER( 'CGTCON', INFOT, NOUT, LERR, OK )
00176          INFOT = 2
00177          CALL CGTCON( 'I', -1, DL, E, DU, DU2, IP, ANORM, RCOND, W,
00178      $                INFO )
00179          CALL CHKXER( 'CGTCON', INFOT, NOUT, LERR, OK )
00180          INFOT = 8
00181          CALL CGTCON( 'I', 0, DL, E, DU, DU2, IP, -ANORM, RCOND, W,
00182      $                INFO )
00183          CALL CHKXER( 'CGTCON', INFOT, NOUT, LERR, OK )
00184 *
00185       ELSE IF( LSAMEN( 2, C2, 'PT' ) ) THEN
00186 *
00187 *        Test error exits for the positive definite tridiagonal
00188 *        routines.
00189 *
00190 *        CPTTRF
00191 *
00192          SRNAMT = 'CPTTRF'
00193          INFOT = 1
00194          CALL CPTTRF( -1, D, E, INFO )
00195          CALL CHKXER( 'CPTTRF', INFOT, NOUT, LERR, OK )
00196 *
00197 *        CPTTRS
00198 *
00199          SRNAMT = 'CPTTRS'
00200          INFOT = 1
00201          CALL CPTTRS( '/', 1, 0, D, E, X, 1, INFO )
00202          CALL CHKXER( 'CPTTRS', INFOT, NOUT, LERR, OK )
00203          INFOT = 2
00204          CALL CPTTRS( 'U', -1, 0, D, E, X, 1, INFO )
00205          CALL CHKXER( 'CPTTRS', INFOT, NOUT, LERR, OK )
00206          INFOT = 3
00207          CALL CPTTRS( 'U', 0, -1, D, E, X, 1, INFO )
00208          CALL CHKXER( 'CPTTRS', INFOT, NOUT, LERR, OK )
00209          INFOT = 7
00210          CALL CPTTRS( 'U', 2, 1, D, E, X, 1, INFO )
00211          CALL CHKXER( 'CPTTRS', INFOT, NOUT, LERR, OK )
00212 *
00213 *        CPTRFS
00214 *
00215          SRNAMT = 'CPTRFS'
00216          INFOT = 1
00217          CALL CPTRFS( '/', 1, 0, D, E, DF, EF, B, 1, X, 1, R1, R2, W,
00218      $                RW, INFO )
00219          CALL CHKXER( 'CPTRFS', INFOT, NOUT, LERR, OK )
00220          INFOT = 2
00221          CALL CPTRFS( 'U', -1, 0, D, E, DF, EF, B, 1, X, 1, R1, R2, W,
00222      $                RW, INFO )
00223          CALL CHKXER( 'CPTRFS', INFOT, NOUT, LERR, OK )
00224          INFOT = 3
00225          CALL CPTRFS( 'U', 0, -1, D, E, DF, EF, B, 1, X, 1, R1, R2, W,
00226      $                RW, INFO )
00227          CALL CHKXER( 'CPTRFS', INFOT, NOUT, LERR, OK )
00228          INFOT = 9
00229          CALL CPTRFS( 'U', 2, 1, D, E, DF, EF, B, 1, X, 2, R1, R2, W,
00230      $                RW, INFO )
00231          CALL CHKXER( 'CPTRFS', INFOT, NOUT, LERR, OK )
00232          INFOT = 11
00233          CALL CPTRFS( 'U', 2, 1, D, E, DF, EF, B, 2, X, 1, R1, R2, W,
00234      $                RW, INFO )
00235          CALL CHKXER( 'CPTRFS', INFOT, NOUT, LERR, OK )
00236 *
00237 *        CPTCON
00238 *
00239          SRNAMT = 'CPTCON'
00240          INFOT = 1
00241          CALL CPTCON( -1, D, E, ANORM, RCOND, RW, INFO )
00242          CALL CHKXER( 'CPTCON', INFOT, NOUT, LERR, OK )
00243          INFOT = 4
00244          CALL CPTCON( 0, D, E, -ANORM, RCOND, RW, INFO )
00245          CALL CHKXER( 'CPTCON', INFOT, NOUT, LERR, OK )
00246       END IF
00247 *
00248 *     Print a summary line.
00249 *
00250       CALL ALAESM( PATH, OK, NOUT )
00251 *
00252       RETURN
00253 *
00254 *     End of CERRGT
00255 *
00256       END
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