LAPACK: TESTING/LIN/zerrls.f Source File

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00001       SUBROUTINE ZERRLS( PATH, NUNIT )
00002 *
00003 *  -- LAPACK test routine (version 3.1) --
00004 *     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..
00005 *     November 2006
00006 *
00007 *     .. Scalar Arguments ..
00008       CHARACTER*3        PATH
00009       INTEGER            NUNIT
00010 *     ..
00011 *
00012 *  Purpose
00013 *  =======
00014 *
00015 *  ZERRLS tests the error exits for the COMPLEX*16 least squares
00016 *  driver routines (ZGELS, CGELSS, CGELSX, CGELSY, CGELSD).
00017 *
00018 *  Arguments
00019 *  =========
00020 *
00021 *  PATH    (input) CHARACTER*3
00022 *          The LAPACK path name for the routines to be tested.
00023 *
00024 *  NUNIT   (input) INTEGER
00025 *          The unit number for output.
00026 *
00027 *  =====================================================================
00028 *
00029 *     .. Parameters ..
00030       INTEGER            NMAX
00031       PARAMETER          ( NMAX = 2 )
00032 *     ..
00033 *     .. Local Scalars ..
00034       CHARACTER*2        C2
00035       INTEGER            INFO, IRNK
00036       DOUBLE PRECISION   RCOND
00037 *     ..
00038 *     .. Local Arrays ..
00039       INTEGER            IP( NMAX )
00040       DOUBLE PRECISION   RW( NMAX ), S( NMAX )
00041       COMPLEX*16         A( NMAX, NMAX ), B( NMAX, NMAX ), W( NMAX )
00042 *     ..
00043 *     .. External Functions ..
00044       LOGICAL            LSAMEN
00045       EXTERNAL           LSAMEN
00046 *     ..
00047 *     .. External Subroutines ..
00048       EXTERNAL           ALAESM, CHKXER, ZGELS, ZGELSD, ZGELSS, ZGELSX,
00049      $                   ZGELSY
00050 *     ..
00051 *     .. Scalars in Common ..
00052       LOGICAL            LERR, OK
00053       CHARACTER*32       SRNAMT
00054       INTEGER            INFOT, NOUT
00055 *     ..
00056 *     .. Common blocks ..
00057       COMMON             / INFOC / INFOT, NOUT, OK, LERR
00058       COMMON             / SRNAMC / SRNAMT
00059 *     ..
00060 *     .. Executable Statements ..
00061 *
00062       NOUT = NUNIT
00063       C2 = PATH( 2: 3 )
00064       A( 1, 1 ) = ( 1.0D+0, 0.0D+0 )
00065       A( 1, 2 ) = ( 2.0D+0, 0.0D+0 )
00066       A( 2, 2 ) = ( 3.0D+0, 0.0D+0 )
00067       A( 2, 1 ) = ( 4.0D+0, 0.0D+0 )
00068       OK = .TRUE.
00069       WRITE( NOUT, FMT = * )
00070 *
00071 *     Test error exits for the least squares driver routines.
00072 *
00073       IF( LSAMEN( 2, C2, 'LS' ) ) THEN
00074 *
00075 *        ZGELS
00076 *
00077          SRNAMT = 'ZGELS '
00078          INFOT = 1
00079          CALL ZGELS( '/', 0, 0, 0, A, 1, B, 1, W, 1, INFO )
00080          CALL CHKXER( 'ZGELS ', INFOT, NOUT, LERR, OK )
00081          INFOT = 2
00082          CALL ZGELS( 'N', -1, 0, 0, A, 1, B, 1, W, 1, INFO )
00083          CALL CHKXER( 'ZGELS ', INFOT, NOUT, LERR, OK )
00084          INFOT = 3
00085          CALL ZGELS( 'N', 0, -1, 0, A, 1, B, 1, W, 1, INFO )
00086          CALL CHKXER( 'ZGELS ', INFOT, NOUT, LERR, OK )
00087          INFOT = 4
00088          CALL ZGELS( 'N', 0, 0, -1, A, 1, B, 1, W, 1, INFO )
00089          CALL CHKXER( 'ZGELS ', INFOT, NOUT, LERR, OK )
00090          INFOT = 6
00091          CALL ZGELS( 'N', 2, 0, 0, A, 1, B, 2, W, 2, INFO )
00092          CALL CHKXER( 'ZGELS ', INFOT, NOUT, LERR, OK )
00093          INFOT = 8
00094          CALL ZGELS( 'N', 2, 0, 0, A, 2, B, 1, W, 2, INFO )
00095          CALL CHKXER( 'ZGELS ', INFOT, NOUT, LERR, OK )
00096          INFOT = 10
00097          CALL ZGELS( 'N', 1, 1, 0, A, 1, B, 1, W, 1, INFO )
00098          CALL CHKXER( 'ZGELS ', INFOT, NOUT, LERR, OK )
00099 *
00100 *        ZGELSS
00101 *
00102          SRNAMT = 'ZGELSS'
00103          INFOT = 1
00104          CALL ZGELSS( -1, 0, 0, A, 1, B, 1, S, RCOND, IRNK, W, 1, RW,
00105      $                INFO )
00106          CALL CHKXER( 'ZGELSS', INFOT, NOUT, LERR, OK )
00107          INFOT = 2
00108          CALL ZGELSS( 0, -1, 0, A, 1, B, 1, S, RCOND, IRNK, W, 1, RW,
00109      $                INFO )
00110          CALL CHKXER( 'ZGELSS', INFOT, NOUT, LERR, OK )
00111          INFOT = 3
00112          CALL ZGELSS( 0, 0, -1, A, 1, B, 1, S, RCOND, IRNK, W, 1, RW,
00113      $                INFO )
00114          CALL CHKXER( 'ZGELSS', INFOT, NOUT, LERR, OK )
00115          INFOT = 5
00116          CALL ZGELSS( 2, 0, 0, A, 1, B, 2, S, RCOND, IRNK, W, 2, RW,
00117      $                INFO )
00118          CALL CHKXER( 'ZGELSS', INFOT, NOUT, LERR, OK )
00119          INFOT = 7
00120          CALL ZGELSS( 2, 0, 0, A, 2, B, 1, S, RCOND, IRNK, W, 2, RW,
00121      $                INFO )
00122          CALL CHKXER( 'ZGELSS', INFOT, NOUT, LERR, OK )
00123 *
00124 *        ZGELSX
00125 *
00126          SRNAMT = 'ZGELSX'
00127          INFOT = 1
00128          CALL ZGELSX( -1, 0, 0, A, 1, B, 1, IP, RCOND, IRNK, W, RW,
00129      $                INFO )
00130          CALL CHKXER( 'ZGELSX', INFOT, NOUT, LERR, OK )
00131          INFOT = 2
00132          CALL ZGELSX( 0, -1, 0, A, 1, B, 1, IP, RCOND, IRNK, W, RW,
00133      $                INFO )
00134          CALL CHKXER( 'ZGELSX', INFOT, NOUT, LERR, OK )
00135          INFOT = 3
00136          CALL ZGELSX( 0, 0, -1, A, 1, B, 1, IP, RCOND, IRNK, W, RW,
00137      $                INFO )
00138          CALL CHKXER( 'ZGELSX', INFOT, NOUT, LERR, OK )
00139          INFOT = 5
00140          CALL ZGELSX( 2, 0, 0, A, 1, B, 2, IP, RCOND, IRNK, W, RW,
00141      $                INFO )
00142          CALL CHKXER( 'ZGELSX', INFOT, NOUT, LERR, OK )
00143          INFOT = 7
00144          CALL ZGELSX( 2, 0, 0, A, 2, B, 1, IP, RCOND, IRNK, W, RW,
00145      $                INFO )
00146          CALL CHKXER( 'ZGELSX', INFOT, NOUT, LERR, OK )
00147 *
00148 *        ZGELSY
00149 *
00150          SRNAMT = 'ZGELSY'
00151          INFOT = 1
00152          CALL ZGELSY( -1, 0, 0, A, 1, B, 1, IP, RCOND, IRNK, W, 10, RW,
00153      $                INFO )
00154          CALL CHKXER( 'ZGELSY', INFOT, NOUT, LERR, OK )
00155          INFOT = 2
00156          CALL ZGELSY( 0, -1, 0, A, 1, B, 1, IP, RCOND, IRNK, W, 10, RW,
00157      $                INFO )
00158          CALL CHKXER( 'ZGELSY', INFOT, NOUT, LERR, OK )
00159          INFOT = 3
00160          CALL ZGELSY( 0, 0, -1, A, 1, B, 1, IP, RCOND, IRNK, W, 10, RW,
00161      $                INFO )
00162          CALL CHKXER( 'ZGELSY', INFOT, NOUT, LERR, OK )
00163          INFOT = 5
00164          CALL ZGELSY( 2, 0, 0, A, 1, B, 2, IP, RCOND, IRNK, W, 10, RW,
00165      $                INFO )
00166          CALL CHKXER( 'ZGELSY', INFOT, NOUT, LERR, OK )
00167          INFOT = 7
00168          CALL ZGELSY( 2, 0, 0, A, 2, B, 1, IP, RCOND, IRNK, W, 10, RW,
00169      $                INFO )
00170          CALL CHKXER( 'ZGELSY', INFOT, NOUT, LERR, OK )
00171          INFOT = 12
00172          CALL ZGELSY( 0, 3, 0, A, 1, B, 3, IP, RCOND, IRNK, W, 1, RW,
00173      $                INFO )
00174          CALL CHKXER( 'ZGELSY', INFOT, NOUT, LERR, OK )
00175 *
00176 *        ZGELSD
00177 *
00178          SRNAMT = 'ZGELSD'
00179          INFOT = 1
00180          CALL ZGELSD( -1, 0, 0, A, 1, B, 1, S, RCOND, IRNK, W, 10, RW,
00181      $                IP, INFO )
00182          CALL CHKXER( 'ZGELSD', INFOT, NOUT, LERR, OK )
00183          INFOT = 2
00184          CALL ZGELSD( 0, -1, 0, A, 1, B, 1, S, RCOND, IRNK, W, 10, RW,
00185      $                IP, INFO )
00186          CALL CHKXER( 'ZGELSD', INFOT, NOUT, LERR, OK )
00187          INFOT = 3
00188          CALL ZGELSD( 0, 0, -1, A, 1, B, 1, S, RCOND, IRNK, W, 10, RW,
00189      $                IP, INFO )
00190          CALL CHKXER( 'ZGELSD', INFOT, NOUT, LERR, OK )
00191          INFOT = 5
00192          CALL ZGELSD( 2, 0, 0, A, 1, B, 2, S, RCOND, IRNK, W, 10, RW,
00193      $                IP, INFO )
00194          CALL CHKXER( 'ZGELSD', INFOT, NOUT, LERR, OK )
00195          INFOT = 7
00196          CALL ZGELSD( 2, 0, 0, A, 2, B, 1, S, RCOND, IRNK, W, 10, RW,
00197      $                IP, INFO )
00198          CALL CHKXER( 'ZGELSD', INFOT, NOUT, LERR, OK )
00199          INFOT = 12
00200          CALL ZGELSD( 2, 2, 1, A, 2, B, 2, S, RCOND, IRNK, W, 1, RW, IP,
00201      $                INFO )
00202          CALL CHKXER( 'ZGELSD', INFOT, NOUT, LERR, OK )
00203       END IF
00204 *
00205 *     Print a summary line.
00206 *
00207       CALL ALAESM( PATH, OK, NOUT )
00208 *
00209       RETURN
00210 *
00211 *     End of ZERRLS
00212 *
00213       END