SUBROUTINE DERRQP( PATH, NUNIT ) * * -- LAPACK test routine (version 3.1) -- * Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. * November 2006 * * .. Scalar Arguments .. CHARACTER*3 PATH INTEGER NUNIT * .. * * Purpose * ======= * * DERRQP tests the error exits for DGEQPF and DGEQP3. * * 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 = 3 ) * .. * .. Local Scalars .. CHARACTER*2 C2 INTEGER INFO, LW * .. * .. Local Arrays .. INTEGER IP( NMAX ) DOUBLE PRECISION A( NMAX, NMAX ), TAU( NMAX ), W( 3*NMAX+1 ) * .. * .. External Functions .. LOGICAL LSAMEN EXTERNAL LSAMEN * .. * .. External Subroutines .. EXTERNAL ALAESM, CHKXER, DGEQP3, DGEQPF * .. * .. Scalars in Common .. LOGICAL LERR, OK CHARACTER*32 SRNAMT INTEGER INFOT, NOUT * .. * .. Common blocks .. COMMON / INFOC / INFOT, NOUT, OK, LERR COMMON / SRNAMC / SRNAMT * .. * .. Executable Statements .. * NOUT = NUNIT WRITE( NOUT, FMT = * ) C2 = PATH( 2: 3 ) LW = 3*NMAX + 1 A( 1, 1 ) = 1.0D+0 A( 1, 2 ) = 2.0D+0 A( 2, 2 ) = 3.0D+0 A( 2, 1 ) = 4.0D+0 OK = .TRUE. * IF( LSAMEN( 2, C2, 'QP' ) ) THEN * * Test error exits for QR factorization with pivoting * * DGEQPF * SRNAMT = 'DGEQPF' INFOT = 1 CALL DGEQPF( -1, 0, A, 1, IP, TAU, W, INFO ) CALL CHKXER( 'DGEQPF', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL DGEQPF( 0, -1, A, 1, IP, TAU, W, INFO ) CALL CHKXER( 'DGEQPF', INFOT, NOUT, LERR, OK ) INFOT = 4 CALL DGEQPF( 2, 0, A, 1, IP, TAU, W, INFO ) CALL CHKXER( 'DGEQPF', INFOT, NOUT, LERR, OK ) * * DGEQP3 * SRNAMT = 'DGEQP3' INFOT = 1 CALL DGEQP3( -1, 0, A, 1, IP, TAU, W, LW, INFO ) CALL CHKXER( 'DGEQP3', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL DGEQP3( 1, -1, A, 1, IP, TAU, W, LW, INFO ) CALL CHKXER( 'DGEQP3', INFOT, NOUT, LERR, OK ) INFOT = 4 CALL DGEQP3( 2, 3, A, 1, IP, TAU, W, LW, INFO ) CALL CHKXER( 'DGEQP3', INFOT, NOUT, LERR, OK ) INFOT = 8 CALL DGEQP3( 2, 2, A, 2, IP, TAU, W, LW-10, INFO ) CALL CHKXER( 'DGEQP3', INFOT, NOUT, LERR, OK ) END IF * * Print a summary line. * CALL ALAESM( PATH, OK, NOUT ) * RETURN * * End of DERRQP * END