cerrvx.f

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      SUBROUTINE CERRVX( PATH, NUNIT )
*
*  -- LAPACK test routine (version 3.1.1) --
*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..
*     January 2007
*
*     .. Scalar Arguments ..
      CHARACTER*3        PATH
      INTEGER            NUNIT
*     ..
*
*  Purpose
*  =======
*
*  CERRVX tests the error exits for the COMPLEX driver routines
*  for solving linear systems of equations.
*
*  Arguments
*  =========
*
*  PATH    (input) CHARACTER*3
*          The LAPACK path name for the routines to be tested.
*
*  NUNIT   (input) INTEGER
*          The unit number for output.
*
*  =====================================================================
*
*     .. Parameters ..
      INTEGER            NMAX
      PARAMETER          ( NMAX = 4 )
*     ..
*     .. Local Scalars ..
      CHARACTER          EQ
      CHARACTER*2        C2
      INTEGER            I, INFO, J
      REAL               RCOND
*     ..
*     .. Local Arrays ..
      INTEGER            IP( NMAX )
      REAL               C( NMAX ), R( NMAX ), R1( NMAX ), R2( NMAX ),
     $                   RF( NMAX ), RW( NMAX )
      COMPLEX            A( NMAX, NMAX ), AF( NMAX, NMAX ), B( NMAX ),
     $                   W( 2*NMAX ), X( NMAX )
*     ..
*     .. External Functions ..
      LOGICAL            LSAMEN
      EXTERNAL           LSAMEN
*     ..
*     .. External Subroutines ..
      EXTERNAL           CGBSV, CGBSVX, CGESV, CGESVX, CGTSV, CGTSVX,
     $                   CHESV, CHESVX, CHKXER, CHPSV, CHPSVX, CPBSV,
     $                   CPBSVX, CPOSV, CPOSVX, CPPSV, CPPSVX, CPTSV,
     $                   CPTSVX, CSPSV, CSPSVX, CSYSV, CSYSVX
*     ..
*     .. Scalars in Common ..
      LOGICAL            LERR, OK
      CHARACTER*6        SRNAMT
      INTEGER            INFOT, NOUT
*     ..
*     .. Common blocks ..
      COMMON             / INFOC / INFOT, NOUT, OK, LERR
      COMMON             / SRNAMC / SRNAMT
*     ..
*     .. Intrinsic Functions ..
      INTRINSIC          CMPLX, REAL
*     ..
*     .. Executable Statements ..
*
      NOUT = NUNIT
      WRITE( NOUT, FMT = * )
      C2 = PATH( 2: 3 )
*
*     Set the variables to innocuous values.
*
      DO 20 J = 1, NMAX
         DO 10 I = 1, NMAX
            A( I, J ) = CMPLX( 1. / REAL( I+J ), -1. / REAL( I+J ) )
            AF( I, J ) = CMPLX( 1. / REAL( I+J ), -1. / REAL( I+J ) )
   10    CONTINUE
         B( J ) = 0.
         R1( J ) = 0.
         R2( J ) = 0.
         W( J ) = 0.
         X( J ) = 0.
         C( J ) = 0.
         R( J ) = 0.
         IP( J ) = J
   20 CONTINUE
      EQ = ' '
      OK = .TRUE.
*
      IF( LSAMEN( 2, C2, 'GE' ) ) THEN
*
*        CGESV
*
         SRNAMT = 'CGESV '
         INFOT = 1
         CALL CGESV( -1, 0, A, 1, IP, B, 1, INFO )
         CALL CHKXER( 'CGESV ', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL CGESV( 0, -1, A, 1, IP, B, 1, INFO )
         CALL CHKXER( 'CGESV ', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL CGESV( 2, 1, A, 1, IP, B, 2, INFO )
         CALL CHKXER( 'CGESV ', INFOT, NOUT, LERR, OK )
         INFOT = 7
         CALL CGESV( 2, 1, A, 2, IP, B, 1, INFO )
         CALL CHKXER( 'CGESV ', INFOT, NOUT, LERR, OK )
*
*        CGESVX
*
         SRNAMT = 'CGESVX'
         INFOT = 1
         CALL CGESVX( '/', 'N', 0, 0, A, 1, AF, 1, IP, EQ, R, C, B, 1,
     $                X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGESVX', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL CGESVX( 'N', '/', 0, 0, A, 1, AF, 1, IP, EQ, R, C, B, 1,
     $                X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGESVX', INFOT, NOUT, LERR, OK )
         INFOT = 3
         CALL CGESVX( 'N', 'N', -1, 0, A, 1, AF, 1, IP, EQ, R, C, B, 1,
     $                X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGESVX', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL CGESVX( 'N', 'N', 0, -1, A, 1, AF, 1, IP, EQ, R, C, B, 1,
     $                X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGESVX', INFOT, NOUT, LERR, OK )
         INFOT = 6
         CALL CGESVX( 'N', 'N', 2, 1, A, 1, AF, 2, IP, EQ, R, C, B, 2,
     $                X, 2, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGESVX', INFOT, NOUT, LERR, OK )
         INFOT = 8
         CALL CGESVX( 'N', 'N', 2, 1, A, 2, AF, 1, IP, EQ, R, C, B, 2,
     $                X, 2, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGESVX', INFOT, NOUT, LERR, OK )
         INFOT = 10
         EQ = '/'
         CALL CGESVX( 'F', 'N', 0, 0, A, 1, AF, 1, IP, EQ, R, C, B, 1,
     $                X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGESVX', INFOT, NOUT, LERR, OK )
         INFOT = 11
         EQ = 'R'
         CALL CGESVX( 'F', 'N', 1, 0, A, 1, AF, 1, IP, EQ, R, C, B, 1,
     $                X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGESVX', INFOT, NOUT, LERR, OK )
         INFOT = 12
         EQ = 'C'
         CALL CGESVX( 'F', 'N', 1, 0, A, 1, AF, 1, IP, EQ, R, C, B, 1,
     $                X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGESVX', INFOT, NOUT, LERR, OK )
         INFOT = 14
         CALL CGESVX( 'N', 'N', 2, 1, A, 2, AF, 2, IP, EQ, R, C, B, 1,
     $                X, 2, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGESVX', INFOT, NOUT, LERR, OK )
         INFOT = 16
         CALL CGESVX( 'N', 'N', 2, 1, A, 2, AF, 2, IP, EQ, R, C, B, 2,
     $                X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGESVX', INFOT, NOUT, LERR, OK )
*
      ELSE IF( LSAMEN( 2, C2, 'GB' ) ) THEN
*
*        CGBSV
*
         SRNAMT = 'CGBSV '
         INFOT = 1
         CALL CGBSV( -1, 0, 0, 0, A, 1, IP, B, 1, INFO )
         CALL CHKXER( 'CGBSV ', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL CGBSV( 1, -1, 0, 0, A, 1, IP, B, 1, INFO )
         CALL CHKXER( 'CGBSV ', INFOT, NOUT, LERR, OK )
         INFOT = 3
         CALL CGBSV( 1, 0, -1, 0, A, 1, IP, B, 1, INFO )
         CALL CHKXER( 'CGBSV ', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL CGBSV( 0, 0, 0, -1, A, 1, IP, B, 1, INFO )
         CALL CHKXER( 'CGBSV ', INFOT, NOUT, LERR, OK )
         INFOT = 6
         CALL CGBSV( 1, 1, 1, 0, A, 3, IP, B, 1, INFO )
         CALL CHKXER( 'CGBSV ', INFOT, NOUT, LERR, OK )
         INFOT = 9
         CALL CGBSV( 2, 0, 0, 0, A, 1, IP, B, 1, INFO )
         CALL CHKXER( 'CGBSV ', INFOT, NOUT, LERR, OK )
*
*        CGBSVX
*
         SRNAMT = 'CGBSVX'
         INFOT = 1
         CALL CGBSVX( '/', 'N', 0, 0, 0, 0, A, 1, AF, 1, IP, EQ, R, C,
     $                B, 1, X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGBSVX', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL CGBSVX( 'N', '/', 0, 0, 0, 0, A, 1, AF, 1, IP, EQ, R, C,
     $                B, 1, X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGBSVX', INFOT, NOUT, LERR, OK )
         INFOT = 3
         CALL CGBSVX( 'N', 'N', -1, 0, 0, 0, A, 1, AF, 1, IP, EQ, R, C,
     $                B, 1, X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGBSVX', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL CGBSVX( 'N', 'N', 1, -1, 0, 0, A, 1, AF, 1, IP, EQ, R, C,
     $                B, 1, X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGBSVX', INFOT, NOUT, LERR, OK )
         INFOT = 5
         CALL CGBSVX( 'N', 'N', 1, 0, -1, 0, A, 1, AF, 1, IP, EQ, R, C,
     $                B, 1, X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGBSVX', INFOT, NOUT, LERR, OK )
         INFOT = 6
         CALL CGBSVX( 'N', 'N', 0, 0, 0, -1, A, 1, AF, 1, IP, EQ, R, C,
     $                B, 1, X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGBSVX', INFOT, NOUT, LERR, OK )
         INFOT = 8
         CALL CGBSVX( 'N', 'N', 1, 1, 1, 0, A, 2, AF, 4, IP, EQ, R, C,
     $                B, 1, X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGBSVX', INFOT, NOUT, LERR, OK )
         INFOT = 10
         CALL CGBSVX( 'N', 'N', 1, 1, 1, 0, A, 3, AF, 3, IP, EQ, R, C,
     $                B, 1, X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGBSVX', INFOT, NOUT, LERR, OK )
         INFOT = 12
         EQ = '/'
         CALL CGBSVX( 'F', 'N', 0, 0, 0, 0, A, 1, AF, 1, IP, EQ, R, C,
     $                B, 1, X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGBSVX', INFOT, NOUT, LERR, OK )
         INFOT = 13
         EQ = 'R'
         CALL CGBSVX( 'F', 'N', 1, 0, 0, 0, A, 1, AF, 1, IP, EQ, R, C,
     $                B, 1, X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGBSVX', INFOT, NOUT, LERR, OK )
         INFOT = 14
         EQ = 'C'
         CALL CGBSVX( 'F', 'N', 1, 0, 0, 0, A, 1, AF, 1, IP, EQ, R, C,
     $                B, 1, X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGBSVX', INFOT, NOUT, LERR, OK )
         INFOT = 16
         CALL CGBSVX( 'N', 'N', 2, 0, 0, 0, A, 1, AF, 1, IP, EQ, R, C,
     $                B, 1, X, 2, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGBSVX', INFOT, NOUT, LERR, OK )
         INFOT = 18
         CALL CGBSVX( 'N', 'N', 2, 0, 0, 0, A, 1, AF, 1, IP, EQ, R, C,
     $                B, 2, X, 1, RCOND, R1, R2, W, RW, INFO )
         CALL CHKXER( 'CGBSVX', INFOT, NOUT, LERR, OK )
*
      ELSE IF( LSAMEN( 2, C2, 'GT' ) ) THEN
*
*        CGTSV
*
         SRNAMT = 'CGTSV '
         INFOT = 1
         CALL CGTSV( -1, 0, A( 1, 1 ), A( 1, 2 ), A( 1, 3 ), B, 1,
     $               INFO )
         CALL CHKXER( 'CGTSV ', INFOT, NOUT, LERR, OK )
         INFOT = 2