subroutine zerrtz	(	character*3	PATH,
		integer	NUNIT
	)

ZERRTZ

Purpose:

 ZERRTZ tests the error exits for ZTZRZF.

Parameters

[in]	PATH	PATH is CHARACTER*3 The LAPACK path name for the routines to be tested.
[in]	NUNIT	NUNIT is INTEGER The unit number for output.

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date

November 2015

Definition at line 56 of file zerrtz.f.

*
*  -- LAPACK test routine (version 3.6.0) --
*  -- LAPACK is a software package provided by Univ. of Tennessee,    --
*  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
*     November 2015
*
*     .. Scalar Arguments ..
      CHARACTER*3        path
      INTEGER            nunit
*     ..
*
*  =====================================================================
*
*     .. Parameters ..
      INTEGER            nmax
      parameter                ( nmax = 2 )
*     ..
*     .. Local Scalars ..
      CHARACTER*2        c2
      INTEGER            info
*     ..
*     .. Local Arrays ..
      COMPLEX*16         a( nmax, nmax ), tau( nmax ), w( nmax )
*     ..
*     .. External Functions ..
      LOGICAL            lsamen
      EXTERNAL           lsamen
*     ..
*     .. External Subroutines ..
      EXTERNAL           alaesm, chkxer, ztzrzf
*     ..
*     .. Scalars in Common ..
      LOGICAL            lerr, ok
      CHARACTER*32       srnamt
      INTEGER            infot, nout
*     ..
*     .. Common blocks ..
      COMMON             / infoc / infot, nout, ok, lerr
      COMMON             / srnamc / srnamt
*     ..
*     .. Intrinsic Functions ..
      INTRINSIC          dcmplx
*     ..
*     .. Executable Statements ..
*
      nout = nunit
      c2 = path( 2: 3 )
      a( 1, 1 ) = dcmplx( 1.d+0, -1.d+0 )
      a( 1, 2 ) = dcmplx( 2.d+0, -2.d+0 )
      a( 2, 2 ) = dcmplx( 3.d+0, -3.d+0 )
      a( 2, 1 ) = dcmplx( 4.d+0, -4.d+0 )
      w( 1 ) = dcmplx( 0.d+0, 0.d+0 )
      w( 2 ) = dcmplx( 0.d+0, 0.d+0 )
      ok = .true.
*
*     Test error exits for the trapezoidal routines.
      WRITE( nout, fmt = * )
      IF( lsamen( 2, c2, 'TZ' ) ) THEN
*
*
*        ZTZRZF
*
         srnamt = 'ZTZRZF'
         infot = 1
         CALL ztzrzf( -1, 0, a, 1, tau, w, 1, info )
         CALL chkxer( 'ZTZRZF', infot, nout, lerr, ok )
         infot = 2
         CALL ztzrzf( 1, 0, a, 1, tau, w, 1, info )
         CALL chkxer( 'ZTZRZF', infot, nout, lerr, ok )
         infot = 4
         CALL ztzrzf( 2, 2, a, 1, tau, w, 1, info )
         CALL chkxer( 'ZTZRZF', infot, nout, lerr, ok )
         infot = 7
         CALL ztzrzf( 2, 2, a, 2, tau, w, 0, info )
         CALL chkxer( 'ZTZRZF', infot, nout, lerr, ok )
         infot = 7
         CALL ztzrzf( 2, 3, a, 2, tau, w, 1, info )
         CALL chkxer( 'ZTZRZF', infot, nout, lerr, ok )
      END IF
*
*     Print a summary line.
*
      CALL alaesm( path, ok, nout )
*
      RETURN
*
*     End of ZERRTZ
*

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