zerrqp()

subroutine zerrqp	(	character*3	PATH,
		integer	NUNIT
	)

ZERRQP

Purpose:

 ZERRQP tests the error exits for ZGEQP3.

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

December 2016

Definition at line 56 of file zerrqp.f.

*
*  -- LAPACK test routine (version 3.7.0) --
*  -- LAPACK is a software package provided by Univ. of Tennessee,    --
*  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
*     December 2016
*
*     .. Scalar Arguments ..
      CHARACTER*3        PATH
      INTEGER            NUNIT
*     ..
*
*  =====================================================================
*
*     .. Parameters ..
      INTEGER            NMAX
      parameter( nmax = 3 )
*     ..
*     .. Local Scalars ..
      CHARACTER*2        C2
      INTEGER            INFO, LW
*     ..
*     .. Local Arrays ..
      INTEGER            IP( NMAX )
      DOUBLE PRECISION   RW( 2*NMAX )
      COMPLEX*16         A( NMAX, NMAX ), TAU( NMAX ),
     $                   W( 2*NMAX+3*NMAX )
*     ..
*     .. External Functions ..
      LOGICAL            LSAMEN
      EXTERNAL           lsamen
*     ..
*     .. External Subroutines ..
      EXTERNAL           alaesm, chkxer, zgeqp3
*     ..
*     .. 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 )
      lw = nmax + 1
      a( 1, 1 ) = dcmplx( 1.0d+0, -1.0d+0 )
      a( 1, 2 ) = dcmplx( 2.0d+0, -2.0d+0 )
      a( 2, 2 ) = dcmplx( 3.0d+0, -3.0d+0 )
      a( 2, 1 ) = dcmplx( 4.0d+0, -4.0d+0 )
      ok = .true.
      WRITE( nout, fmt = * )
*
*     Test error exits for QR factorization with pivoting
*
      IF( lsamen( 2, c2, 'QP' ) ) THEN
*
*        ZGEQP3
*
         srnamt = 'ZGEQP3'
         infot = 1
         CALL zgeqp3( -1, 0, a, 1, ip, tau, w, lw, rw, info )
         CALL chkxer( 'ZGEQP3', infot, nout, lerr, ok )
         infot = 2
         CALL zgeqp3( 1, -1, a, 1, ip, tau, w, lw, rw, info )
         CALL chkxer( 'ZGEQP3', infot, nout, lerr, ok )
         infot = 4
         CALL zgeqp3( 2, 3, a, 1, ip, tau, w, lw, rw, info )
         CALL chkxer( 'ZGEQP3', infot, nout, lerr, ok )
         infot = 8
         CALL zgeqp3( 2, 2, a, 2, ip, tau, w, lw-10, rw, info )
         CALL chkxer( 'ZGEQP3', infot, nout, lerr, ok )
      END IF
*
*     Print a summary line.
*
      CALL alaesm( path, ok, nout )
*
      RETURN
*
*     End of ZERRQP
*

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