示例#1
0
/* Subroutine */ int serrlq_(char *path, integer *nunit)
{
    /* Local variables */
    real a[4]	/* was [2][2] */, b[2];
    integer i__, j;
    real w[2], x[2], af[4]	/* was [2][2] */;
    integer info;

    /* Fortran I/O blocks */
    static cilist io___1 = { 0, 0, 0, 0, 0 };



/*  -- LAPACK test routine (version 3.1) -- */
/*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
/*     November 2006 */

/*     .. Scalar Arguments .. */
/*     .. */

/*  Purpose */
/*  ======= */

/*  SERRLQ tests the error exits for the REAL routines */
/*  that use the LQ decomposition of a general matrix. */

/*  Arguments */
/*  ========= */

/*  PATH    (input) CHARACTER*3 */
/*          The LAPACK path name for the routines to be tested. */

/*  NUNIT   (input) INTEGER */
/*          The unit number for output. */

/*  ===================================================================== */

/*     .. Parameters .. */
/*     .. */
/*     .. Local Scalars .. */
/*     .. */
/*     .. Local Arrays .. */
/*     .. */
/*     .. External Subroutines .. */
/*     .. */
/*     .. Scalars in Common .. */
/*     .. */
/*     .. Common blocks .. */
/*     .. */
/*     .. Intrinsic Functions .. */
/*     .. */
/*     .. Executable Statements .. */

    infoc_1.nout = *nunit;
    io___1.ciunit = infoc_1.nout;
    s_wsle(&io___1);
    e_wsle();

/*     Set the variables to innocuous values. */

    for (j = 1; j <= 2; ++j) {
	for (i__ = 1; i__ <= 2; ++i__) {
	    a[i__ + (j << 1) - 3] = 1.f / (real) (i__ + j);
	    af[i__ + (j << 1) - 3] = 1.f / (real) (i__ + j);
/* L10: */
	}
	b[j - 1] = 0.f;
	w[j - 1] = 0.f;
	x[j - 1] = 0.f;
/* L20: */
    }
    infoc_1.ok = TRUE_;

/*     Error exits for LQ factorization */

/*     SGELQF */

    s_copy(srnamc_1.srnamt, "SGELQF", (ftnlen)32, (ftnlen)6);
    infoc_1.infot = 1;
    sgelqf_(&c_n1, &c__0, a, &c__1, b, w, &c__1, &info);
    chkxer_("SGELQF", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 2;
    sgelqf_(&c__0, &c_n1, a, &c__1, b, w, &c__1, &info);
    chkxer_("SGELQF", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 4;
    sgelqf_(&c__2, &c__1, a, &c__1, b, w, &c__2, &info);
    chkxer_("SGELQF", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 7;
    sgelqf_(&c__2, &c__1, a, &c__2, b, w, &c__1, &info);
    chkxer_("SGELQF", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);

/*     SGELQ2 */

    s_copy(srnamc_1.srnamt, "SGELQ2", (ftnlen)32, (ftnlen)6);
    infoc_1.infot = 1;
    sgelq2_(&c_n1, &c__0, a, &c__1, b, w, &info);
    chkxer_("SGELQ2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 2;
    sgelq2_(&c__0, &c_n1, a, &c__1, b, w, &info);
    chkxer_("SGELQ2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 4;
    sgelq2_(&c__2, &c__1, a, &c__1, b, w, &info);
    chkxer_("SGELQ2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);

/*     SGELQS */

    s_copy(srnamc_1.srnamt, "SGELQS", (ftnlen)32, (ftnlen)6);
    infoc_1.infot = 1;
    sgelqs_(&c_n1, &c__0, &c__0, a, &c__1, x, b, &c__1, w, &c__1, &info);
    chkxer_("SGELQS", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 2;
    sgelqs_(&c__0, &c_n1, &c__0, a, &c__1, x, b, &c__1, w, &c__1, &info);
    chkxer_("SGELQS", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 2;
    sgelqs_(&c__2, &c__1, &c__0, a, &c__2, x, b, &c__1, w, &c__1, &info);
    chkxer_("SGELQS", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 3;
    sgelqs_(&c__0, &c__0, &c_n1, a, &c__1, x, b, &c__1, w, &c__1, &info);
    chkxer_("SGELQS", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 5;
    sgelqs_(&c__2, &c__2, &c__0, a, &c__1, x, b, &c__2, w, &c__1, &info);
    chkxer_("SGELQS", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 8;
    sgelqs_(&c__1, &c__2, &c__0, a, &c__1, x, b, &c__1, w, &c__1, &info);
    chkxer_("SGELQS", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 10;
    sgelqs_(&c__1, &c__1, &c__2, a, &c__1, x, b, &c__1, w, &c__1, &info);
    chkxer_("SGELQS", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);

/*     SORGLQ */

    s_copy(srnamc_1.srnamt, "SORGLQ", (ftnlen)32, (ftnlen)6);
    infoc_1.infot = 1;
    sorglq_(&c_n1, &c__0, &c__0, a, &c__1, x, w, &c__1, &info);
    chkxer_("SORGLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 2;
    sorglq_(&c__0, &c_n1, &c__0, a, &c__1, x, w, &c__1, &info);
    chkxer_("SORGLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 2;
    sorglq_(&c__2, &c__1, &c__0, a, &c__2, x, w, &c__2, &info);
    chkxer_("SORGLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 3;
    sorglq_(&c__0, &c__0, &c_n1, a, &c__1, x, w, &c__1, &info);
    chkxer_("SORGLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 3;
    sorglq_(&c__1, &c__1, &c__2, a, &c__1, x, w, &c__1, &info);
    chkxer_("SORGLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 5;
    sorglq_(&c__2, &c__2, &c__0, a, &c__1, x, w, &c__2, &info);
    chkxer_("SORGLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 8;
    sorglq_(&c__2, &c__2, &c__0, a, &c__2, x, w, &c__1, &info);
    chkxer_("SORGLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);

/*     SORGL2 */

    s_copy(srnamc_1.srnamt, "SORGL2", (ftnlen)32, (ftnlen)6);
    infoc_1.infot = 1;
    sorgl2_(&c_n1, &c__0, &c__0, a, &c__1, x, w, &info);
    chkxer_("SORGL2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 2;
    sorgl2_(&c__0, &c_n1, &c__0, a, &c__1, x, w, &info);
    chkxer_("SORGL2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 2;
    sorgl2_(&c__2, &c__1, &c__0, a, &c__2, x, w, &info);
    chkxer_("SORGL2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 3;
    sorgl2_(&c__0, &c__0, &c_n1, a, &c__1, x, w, &info);
    chkxer_("SORGL2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 3;
    sorgl2_(&c__1, &c__1, &c__2, a, &c__1, x, w, &info);
    chkxer_("SORGL2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 5;
    sorgl2_(&c__2, &c__2, &c__0, a, &c__1, x, w, &info);
    chkxer_("SORGL2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);

/*     SORMLQ */

    s_copy(srnamc_1.srnamt, "SORMLQ", (ftnlen)32, (ftnlen)6);
    infoc_1.infot = 1;
    sormlq_("/", "N", &c__0, &c__0, &c__0, a, &c__1, x, af, &c__1, w, &c__1, &
	    info);
    chkxer_("SORMLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 2;
    sormlq_("L", "/", &c__0, &c__0, &c__0, a, &c__1, x, af, &c__1, w, &c__1, &
	    info);
    chkxer_("SORMLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 3;
    sormlq_("L", "N", &c_n1, &c__0, &c__0, a, &c__1, x, af, &c__1, w, &c__1, &
	    info);
    chkxer_("SORMLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 4;
    sormlq_("L", "N", &c__0, &c_n1, &c__0, a, &c__1, x, af, &c__1, w, &c__1, &
	    info);
    chkxer_("SORMLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 5;
    sormlq_("L", "N", &c__0, &c__0, &c_n1, a, &c__1, x, af, &c__1, w, &c__1, &
	    info);
    chkxer_("SORMLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 5;
    sormlq_("L", "N", &c__0, &c__1, &c__1, a, &c__1, x, af, &c__1, w, &c__1, &
	    info);
    chkxer_("SORMLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 5;
    sormlq_("R", "N", &c__1, &c__0, &c__1, a, &c__1, x, af, &c__1, w, &c__1, &
	    info);
    chkxer_("SORMLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 7;
    sormlq_("L", "N", &c__2, &c__0, &c__2, a, &c__1, x, af, &c__2, w, &c__1, &
	    info);
    chkxer_("SORMLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 7;
    sormlq_("R", "N", &c__0, &c__2, &c__2, a, &c__1, x, af, &c__1, w, &c__1, &
	    info);
    chkxer_("SORMLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 10;
    sormlq_("L", "N", &c__2, &c__1, &c__0, a, &c__2, x, af, &c__1, w, &c__1, &
	    info);
    chkxer_("SORMLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 12;
    sormlq_("L", "N", &c__1, &c__2, &c__0, a, &c__1, x, af, &c__1, w, &c__1, &
	    info);
    chkxer_("SORMLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 12;
    sormlq_("R", "N", &c__2, &c__1, &c__0, a, &c__1, x, af, &c__2, w, &c__1, &
	    info);
    chkxer_("SORMLQ", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);

/*     SORML2 */

    s_copy(srnamc_1.srnamt, "SORML2", (ftnlen)32, (ftnlen)6);
    infoc_1.infot = 1;
    sorml2_("/", "N", &c__0, &c__0, &c__0, a, &c__1, x, af, &c__1, w, &info);
    chkxer_("SORML2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 2;
    sorml2_("L", "/", &c__0, &c__0, &c__0, a, &c__1, x, af, &c__1, w, &info);
    chkxer_("SORML2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 3;
    sorml2_("L", "N", &c_n1, &c__0, &c__0, a, &c__1, x, af, &c__1, w, &info);
    chkxer_("SORML2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 4;
    sorml2_("L", "N", &c__0, &c_n1, &c__0, a, &c__1, x, af, &c__1, w, &info);
    chkxer_("SORML2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 5;
    sorml2_("L", "N", &c__0, &c__0, &c_n1, a, &c__1, x, af, &c__1, w, &info);
    chkxer_("SORML2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 5;
    sorml2_("L", "N", &c__0, &c__1, &c__1, a, &c__1, x, af, &c__1, w, &info);
    chkxer_("SORML2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 5;
    sorml2_("R", "N", &c__1, &c__0, &c__1, a, &c__1, x, af, &c__1, w, &info);
    chkxer_("SORML2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 7;
    sorml2_("L", "N", &c__2, &c__1, &c__2, a, &c__1, x, af, &c__2, w, &info);
    chkxer_("SORML2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 7;
    sorml2_("R", "N", &c__1, &c__2, &c__2, a, &c__1, x, af, &c__1, w, &info);
    chkxer_("SORML2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);
    infoc_1.infot = 10;
    sorml2_("L", "N", &c__2, &c__1, &c__0, a, &c__2, x, af, &c__1, w, &info);
    chkxer_("SORML2", &infoc_1.infot, &infoc_1.nout, &infoc_1.lerr, &
	    infoc_1.ok);

/*     Print a summary line. */

    alaesm_(path, &infoc_1.ok, &infoc_1.nout);

    return 0;

/*     End of SERRLQ */

} /* serrlq_ */
示例#2
0
/* Subroutine */ int sorglq_(integer *m, integer *n, integer *k, real *a, 
	integer *lda, real *tau, real *work, integer *lwork, integer *info)
{
    /* System generated locals */
    integer a_dim1, a_offset, i__1, i__2, i__3;

    /* Local variables */
    static integer i__, j, l, ib, nb, ki, kk, nx, iws, nbmin, iinfo;
    extern /* Subroutine */ int sorgl2_(integer *, integer *, integer *, real 
	    *, integer *, real *, real *, integer *), slarfb_(char *, char *, 
	    char *, char *, integer *, integer *, integer *, real *, integer *
	    , real *, integer *, real *, integer *, real *, integer *, ftnlen,
	     ftnlen, ftnlen, ftnlen), xerbla_(char *, integer *, ftnlen);
    extern integer ilaenv_(integer *, char *, char *, integer *, integer *, 
	    integer *, integer *, ftnlen, ftnlen);
    extern /* Subroutine */ int slarft_(char *, char *, integer *, integer *, 
	    real *, integer *, real *, real *, integer *, ftnlen, ftnlen);
    static integer ldwork, lwkopt;
    static logical lquery;


/*  -- LAPACK routine (version 3.0) -- */
/*     Univ. of Tennessee, Univ. of California Berkeley, NAG Ltd., */
/*     Courant Institute, Argonne National Lab, and Rice University */
/*     June 30, 1999 */

/*     .. Scalar Arguments .. */
/*     .. */
/*     .. Array Arguments .. */
/*     .. */

/*  Purpose */
/*  ======= */

/*  SORGLQ generates an M-by-N real matrix Q with orthonormal rows, */
/*  which is defined as the first M rows of a product of K elementary */
/*  reflectors of order N */

/*        Q  =  H(k) . . . H(2) H(1) */

/*  as returned by SGELQF. */

/*  Arguments */
/*  ========= */

/*  M       (input) INTEGER */
/*          The number of rows of the matrix Q. M >= 0. */

/*  N       (input) INTEGER */
/*          The number of columns of the matrix Q. N >= M. */

/*  K       (input) INTEGER */
/*          The number of elementary reflectors whose product defines the */
/*          matrix Q. M >= K >= 0. */

/*  A       (input/output) REAL array, dimension (LDA,N) */
/*          On entry, the i-th row must contain the vector which defines */
/*          the elementary reflector H(i), for i = 1,2,...,k, as returned */
/*          by SGELQF in the first k rows of its array argument A. */
/*          On exit, the M-by-N matrix Q. */

/*  LDA     (input) INTEGER */
/*          The first dimension of the array A. LDA >= max(1,M). */

/*  TAU     (input) REAL array, dimension (K) */
/*          TAU(i) must contain the scalar factor of the elementary */
/*          reflector H(i), as returned by SGELQF. */

/*  WORK    (workspace/output) REAL array, dimension (LWORK) */
/*          On exit, if INFO = 0, WORK(1) returns the optimal LWORK. */

/*  LWORK   (input) INTEGER */
/*          The dimension of the array WORK. LWORK >= max(1,M). */
/*          For optimum performance LWORK >= M*NB, where NB is */
/*          the optimal blocksize. */

/*          If LWORK = -1, then a workspace query is assumed; the routine */
/*          only calculates the optimal size of the WORK array, returns */
/*          this value as the first entry of the WORK array, and no error */
/*          message related to LWORK is issued by XERBLA. */

/*  INFO    (output) INTEGER */
/*          = 0:  successful exit */
/*          < 0:  if INFO = -i, the i-th argument has an illegal value */

/*  ===================================================================== */

/*     .. Parameters .. */
/*     .. */
/*     .. Local Scalars .. */
/*     .. */
/*     .. External Subroutines .. */
/*     .. */
/*     .. Intrinsic Functions .. */
/*     .. */
/*     .. External Functions .. */
/*     .. */
/*     .. Executable Statements .. */

/*     Test the input arguments */

    /* Parameter adjustments */
    a_dim1 = *lda;
    a_offset = 1 + a_dim1;
    a -= a_offset;
    --tau;
    --work;

    /* Function Body */
    *info = 0;
    nb = ilaenv_(&c__1, "SORGLQ", " ", m, n, k, &c_n1, (ftnlen)6, (ftnlen)1);
    lwkopt = max(1,*m) * nb;
    work[1] = (real) lwkopt;
    lquery = *lwork == -1;
    if (*m < 0) {
	*info = -1;
    } else if (*n < *m) {
	*info = -2;
    } else if (*k < 0 || *k > *m) {
	*info = -3;
    } else if (*lda < max(1,*m)) {
	*info = -5;
    } else if (*lwork < max(1,*m) && ! lquery) {
	*info = -8;
    }
    if (*info != 0) {
	i__1 = -(*info);
	xerbla_("SORGLQ", &i__1, (ftnlen)6);
	return 0;
    } else if (lquery) {
	return 0;
    }

/*     Quick return if possible */

    if (*m <= 0) {
	work[1] = 1.f;
	return 0;
    }

    nbmin = 2;
    nx = 0;
    iws = *m;
    if (nb > 1 && nb < *k) {

/*        Determine when to cross over from blocked to unblocked code. */

/* Computing MAX */
	i__1 = 0, i__2 = ilaenv_(&c__3, "SORGLQ", " ", m, n, k, &c_n1, (
		ftnlen)6, (ftnlen)1);
	nx = max(i__1,i__2);
	if (nx < *k) {

/*           Determine if workspace is large enough for blocked code. */

	    ldwork = *m;
	    iws = ldwork * nb;
	    if (*lwork < iws) {

/*              Not enough workspace to use optimal NB:  reduce NB and */
/*              determine the minimum value of NB. */

		nb = *lwork / ldwork;
/* Computing MAX */
		i__1 = 2, i__2 = ilaenv_(&c__2, "SORGLQ", " ", m, n, k, &c_n1,
			 (ftnlen)6, (ftnlen)1);
		nbmin = max(i__1,i__2);
	    }
	}
    }

    if (nb >= nbmin && nb < *k && nx < *k) {

/*        Use blocked code after the last block. */
/*        The first kk rows are handled by the block method. */

	ki = (*k - nx - 1) / nb * nb;
/* Computing MIN */
	i__1 = *k, i__2 = ki + nb;
	kk = min(i__1,i__2);

/*        Set A(kk+1:m,1:kk) to zero. */

	i__1 = kk;
	for (j = 1; j <= i__1; ++j) {
	    i__2 = *m;
	    for (i__ = kk + 1; i__ <= i__2; ++i__) {
		a[i__ + j * a_dim1] = 0.f;
/* L10: */
	    }
/* L20: */
	}
    } else {
	kk = 0;
    }

/*     Use unblocked code for the last or only block. */

    if (kk < *m) {
	i__1 = *m - kk;
	i__2 = *n - kk;
	i__3 = *k - kk;
	sorgl2_(&i__1, &i__2, &i__3, &a[kk + 1 + (kk + 1) * a_dim1], lda, &
		tau[kk + 1], &work[1], &iinfo);
    }

    if (kk > 0) {

/*        Use blocked code */

	i__1 = -nb;
	for (i__ = ki + 1; i__1 < 0 ? i__ >= 1 : i__ <= 1; i__ += i__1) {
/* Computing MIN */
	    i__2 = nb, i__3 = *k - i__ + 1;
	    ib = min(i__2,i__3);
	    if (i__ + ib <= *m) {

/*              Form the triangular factor of the block reflector */
/*              H = H(i) H(i+1) . . . H(i+ib-1) */

		i__2 = *n - i__ + 1;
		slarft_("Forward", "Rowwise", &i__2, &ib, &a[i__ + i__ * 
			a_dim1], lda, &tau[i__], &work[1], &ldwork, (ftnlen)7,
			 (ftnlen)7);

/*              Apply H' to A(i+ib:m,i:n) from the right */

		i__2 = *m - i__ - ib + 1;
		i__3 = *n - i__ + 1;
		slarfb_("Right", "Transpose", "Forward", "Rowwise", &i__2, &
			i__3, &ib, &a[i__ + i__ * a_dim1], lda, &work[1], &
			ldwork, &a[i__ + ib + i__ * a_dim1], lda, &work[ib + 
			1], &ldwork, (ftnlen)5, (ftnlen)9, (ftnlen)7, (ftnlen)
			7);
	    }

/*           Apply H' to columns i:n of current block */

	    i__2 = *n - i__ + 1;
	    sorgl2_(&ib, &i__2, &ib, &a[i__ + i__ * a_dim1], lda, &tau[i__], &
		    work[1], &iinfo);

/*           Set columns 1:i-1 of current block to zero */

	    i__2 = i__ - 1;
	    for (j = 1; j <= i__2; ++j) {
		i__3 = i__ + ib - 1;
		for (l = i__; l <= i__3; ++l) {
		    a[l + j * a_dim1] = 0.f;
/* L30: */
		}
/* L40: */
	    }
/* L50: */
	}
    }

    work[1] = (real) iws;
    return 0;

/*     End of SORGLQ */

} /* sorglq_ */