#include "blaswrap.h"
/*  -- translated by f2c (version 19990503).
   You must link the resulting object file with the libraries:
	-lf2c -lm   (in that order)
*/

#include "f2c.h"

/* Common Block Declarations */

struct {
    integer infot, nunit;
    logical ok, lerr;
} infoc_;

#define infoc_1 infoc_

struct {
    char srnamt[6];
} srnamc_;

#define srnamc_1 srnamc_

/* Table of constant values */

static integer c__2 = 2;
static integer c__0 = 0;
static integer c_n1 = -1;
static integer c__1 = 1;
static integer c__3 = 3;

/* Subroutine */ int dchkrq_(logical *dotype, integer *nm, integer *mval, 
	integer *nn, integer *nval, integer *nnb, integer *nbval, integer *
	nxval, integer *nrhs, doublereal *thresh, logical *tsterr, integer *
	nmax, doublereal *a, doublereal *af, doublereal *aq, doublereal *ar, 
	doublereal *ac, doublereal *b, doublereal *x, doublereal *xact, 
	doublereal *tau, doublereal *work, doublereal *rwork, integer *iwork, 
	integer *nout)
{
    /* Initialized data */

    static integer iseedy[4] = { 1988,1989,1990,1991 };

    /* Format strings */
    static char fmt_9999[] = "(\002 M=\002,i5,\002, N=\002,i5,\002, K=\002,i"
	    "5,\002, NB=\002,i4,\002, NX=\002,i5,\002, type \002,i2,\002, tes"
	    "t(\002,i2,\002)=\002,g12.5)";

    /* System generated locals */
    integer i__1, i__2, i__3, i__4, i__5;

    /* Builtin functions   
       Subroutine */ int s_copy(char *, char *, ftnlen, ftnlen);
    integer s_wsfe(cilist *), do_fio(integer *, char *, ftnlen), e_wsfe(void);

    /* Local variables */
    static integer mode, imat, info;
    static char path[3];
    static integer kval[4];
    static char dist[1], type__[1];
    static integer nrun, i__;
    extern /* Subroutine */ int alahd_(integer *, char *);
    static integer k, m, n;
    extern /* Subroutine */ int dget02_(char *, integer *, integer *, integer 
	    *, doublereal *, integer *, doublereal *, integer *, doublereal *,
	     integer *, doublereal *, doublereal *);
    static integer nfail, iseed[4];
    extern /* Subroutine */ int drqt01_(integer *, integer *, doublereal *, 
	    doublereal *, doublereal *, doublereal *, integer *, doublereal *,
	     doublereal *, integer *, doublereal *, doublereal *);
    static doublereal anorm;
    extern /* Subroutine */ int drqt02_(integer *, integer *, integer *, 
	    doublereal *, doublereal *, doublereal *, doublereal *, integer *,
	     doublereal *, doublereal *, integer *, doublereal *, doublereal *
	    );
    static integer minmn;
    extern /* Subroutine */ int drqt03_(integer *, integer *, integer *, 
	    doublereal *, doublereal *, doublereal *, doublereal *, integer *,
	     doublereal *, doublereal *, integer *, doublereal *, doublereal *
	    );
    static integer nerrs, lwork;
    extern /* Subroutine */ int dlatb4_(char *, integer *, integer *, integer 
	    *, char *, integer *, integer *, doublereal *, integer *, 
	    doublereal *, char *);
    static integer nb, ik, im, in, kl, nk;
    extern /* Subroutine */ int alaerh_(char *, char *, integer *, integer *, 
	    char *, integer *, integer *, integer *, integer *, integer *, 
	    integer *, integer *, integer *, integer *);
    static integer ku, nt, nx;
    extern /* Subroutine */ int dlacpy_(char *, integer *, integer *, 
	    doublereal *, integer *, doublereal *, integer *), 
	    dlarhs_(char *, char *, char *, char *, integer *, integer *, 
	    integer *, integer *, integer *, doublereal *, integer *, 
	    doublereal *, integer *, doublereal *, integer *, integer *, 
	    integer *), alasum_(char *, 
	    integer *, integer *, integer *, integer *);
    static doublereal cndnum;
    extern /* Subroutine */ int dgerqs_(integer *, integer *, integer *, 
	    doublereal *, integer *, doublereal *, doublereal *, integer *, 
	    doublereal *, integer *, integer *), dlatms_(integer *, integer *,
	     char *, integer *, char *, doublereal *, integer *, doublereal *,
	     doublereal *, integer *, integer *, char *, doublereal *, 
	    integer *, doublereal *, integer *), 
	    xlaenv_(integer *, integer *), derrrq_(char *, integer *);
    static doublereal result[7];
    static integer lda, inb;

    /* Fortran I/O blocks */
    static cilist io___33 = { 0, 0, 0, fmt_9999, 0 };



/*  -- LAPACK test routine (version 3.0) --   
       Univ. of Tennessee, Univ. of California Berkeley, NAG Ltd.,   
       Courant Institute, Argonne National Lab, and Rice University   
       September 30, 1994   


    Purpose   
    =======   

    DCHKRQ tests DGERQF, DORGRQ and DORMRQ.   

    Arguments   
    =========   

    DOTYPE  (input) LOGICAL array, dimension (NTYPES)   
            The matrix types to be used for testing.  Matrices of type j   
            (for 1 <= j <= NTYPES) are used for testing if DOTYPE(j) =   
            .TRUE.; if DOTYPE(j) = .FALSE., then type j is not used.   

    NM      (input) INTEGER   
            The number of values of M contained in the vector MVAL.   

    MVAL    (input) INTEGER array, dimension (NM)   
            The values of the matrix row dimension M.   

    NN      (input) INTEGER   
            The number of values of N contained in the vector NVAL.   

    NVAL    (input) INTEGER array, dimension (NN)   
            The values of the matrix column dimension N.   

    NNB     (input) INTEGER   
            The number of values of NB and NX contained in the   
            vectors NBVAL and NXVAL.  The blocking parameters are used   
            in pairs (NB,NX).   

    NBVAL   (input) INTEGER array, dimension (NNB)   
            The values of the blocksize NB.   

    NXVAL   (input) INTEGER array, dimension (NNB)   
            The values of the crossover point NX.   

    NRHS    (input) INTEGER   
            The number of right hand side vectors to be generated for   
            each linear system.   

    THRESH  (input) DOUBLE PRECISION   
            The threshold value for the test ratios.  A result is   
            included in the output file if RESULT >= THRESH.  To have   
            every test ratio printed, use THRESH = 0.   

    TSTERR  (input) LOGICAL   
            Flag that indicates whether error exits are to be tested.   

    NMAX    (input) INTEGER   
            The maximum value permitted for M or N, used in dimensioning   
            the work arrays.   

    A       (workspace) DOUBLE PRECISION array, dimension (NMAX*NMAX)   

    AF      (workspace) DOUBLE PRECISION array, dimension (NMAX*NMAX)   

    AQ      (workspace) DOUBLE PRECISION array, dimension (NMAX*NMAX)   

    AR      (workspace) DOUBLE PRECISION array, dimension (NMAX*NMAX)   

    AC      (workspace) DOUBLE PRECISION array, dimension (NMAX*NMAX)   

    B       (workspace) DOUBLE PRECISION array, dimension (NMAX*NRHS)   

    X       (workspace) DOUBLE PRECISION array, dimension (NMAX*NRHS)   

    XACT    (workspace) DOUBLE PRECISION array, dimension (NMAX*NRHS)   

    TAU     (workspace) DOUBLE PRECISION array, dimension (NMAX)   

    WORK    (workspace) DOUBLE PRECISION array, dimension (NMAX*NMAX)   

    RWORK   (workspace) DOUBLE PRECISION array, dimension (NMAX)   

    IWORK   (workspace) INTEGER array, dimension (NMAX)   

    NOUT    (input) INTEGER   
            The unit number for output.   

    =====================================================================   

       Parameter adjustments */
    --iwork;
    --rwork;
    --work;
    --tau;
    --xact;
    --x;
    --b;
    --ac;
    --ar;
    --aq;
    --af;
    --a;
    --nxval;
    --nbval;
    --nval;
    --mval;
    --dotype;

    /* Function Body   

       Initialize constants and the random number seed. */

    s_copy(path, "Double precision", (ftnlen)1, (ftnlen)16);
    s_copy(path + 1, "RQ", (ftnlen)2, (ftnlen)2);
    nrun = 0;
    nfail = 0;
    nerrs = 0;
    for (i__ = 1; i__ <= 4; ++i__) {
	iseed[i__ - 1] = iseedy[i__ - 1];
/* L10: */
    }

/*     Test the error exits */

    if (*tsterr) {
	derrrq_(path, nout);
    }
    infoc_1.infot = 0;
    xlaenv_(&c__2, &c__2);

    lda = *nmax;
    lwork = *nmax * max(*nmax,*nrhs);

/*     Do for each value of M in MVAL. */

    i__1 = *nm;
    for (im = 1; im <= i__1; ++im) {
	m = mval[im];

/*        Do for each value of N in NVAL. */

	i__2 = *nn;
	for (in = 1; in <= i__2; ++in) {
	    n = nval[in];
	    minmn = min(m,n);
	    for (imat = 1; imat <= 8; ++imat) {

/*              Do the tests only if DOTYPE( IMAT ) is true. */

		if (! dotype[imat]) {
		    goto L50;
		}

/*              Set up parameters with DLATB4 and generate a test matrix   
                with DLATMS. */

		dlatb4_(path, &imat, &m, &n, type__, &kl, &ku, &anorm, &mode, 
			&cndnum, dist);

		s_copy(srnamc_1.srnamt, "DLATMS", (ftnlen)6, (ftnlen)6);
		dlatms_(&m, &n, dist, iseed, type__, &rwork[1], &mode, &
			cndnum, &anorm, &kl, &ku, "No packing", &a[1], &lda, &
			work[1], &info);

/*              Check error code from DLATMS. */

		if (info != 0) {
		    alaerh_(path, "DLATMS", &info, &c__0, " ", &m, &n, &c_n1, 
			    &c_n1, &c_n1, &imat, &nfail, &nerrs, nout);
		    goto L50;
		}

/*              Set some values for K: the first value must be MINMN,   
                corresponding to the call of DRQT01; other values are   
                used in the calls of DRQT02, and must not exceed MINMN. */

		kval[0] = minmn;
		kval[1] = 0;
		kval[2] = 1;
		kval[3] = minmn / 2;
		if (minmn == 0) {
		    nk = 1;
		} else if (minmn == 1) {
		    nk = 2;
		} else if (minmn <= 3) {
		    nk = 3;
		} else {
		    nk = 4;
		}

/*              Do for each value of K in KVAL */

		i__3 = nk;
		for (ik = 1; ik <= i__3; ++ik) {
		    k = kval[ik - 1];

/*                 Do for each pair of values (NB,NX) in NBVAL and NXVAL. */

		    i__4 = *nnb;
		    for (inb = 1; inb <= i__4; ++inb) {
			nb = nbval[inb];
			xlaenv_(&c__1, &nb);
			nx = nxval[inb];
			xlaenv_(&c__3, &nx);
			nt = 2;
			if (ik == 1) {

/*                       Test DGERQF */

			    drqt01_(&m, &n, &a[1], &af[1], &aq[1], &ar[1], &
				    lda, &tau[1], &work[1], &lwork, &rwork[1],
				     result);
			} else if (m <= n) {

/*                       Test DORGRQ, using factorization   
                         returned by DRQT01 */

			    drqt02_(&m, &n, &k, &a[1], &af[1], &aq[1], &ar[1],
				     &lda, &tau[1], &work[1], &lwork, &rwork[
				    1], result);
			} else {
			    result[0] = 0.;
			    result[1] = 0.;
			}
			if (m >= k) {

/*                       Test DORMRQ, using factorization returned   
                         by DRQT01 */

			    drqt03_(&m, &n, &k, &af[1], &ac[1], &ar[1], &aq[1]
				    , &lda, &tau[1], &work[1], &lwork, &rwork[
				    1], &result[2]);
			    nt += 4;

/*                       If M>=N and K=N, call DGERQS to solve a system   
                         with NRHS right hand sides and compute the   
                         residual. */

			    if (k == m && inb == 1) {

/*                          Generate a solution and set the right   
                            hand side. */

				s_copy(srnamc_1.srnamt, "DLARHS", (ftnlen)6, (
					ftnlen)6);
				dlarhs_(path, "New", "Full", "No transpose", &
					m, &n, &c__0, &c__0, nrhs, &a[1], &
					lda, &xact[1], &lda, &b[1], &lda, 
					iseed, &info);

				dlacpy_("Full", &m, nrhs, &b[1], &lda, &x[n - 
					m + 1], &lda);
				s_copy(srnamc_1.srnamt, "DGERQS", (ftnlen)6, (
					ftnlen)6);
				dgerqs_(&m, &n, nrhs, &af[1], &lda, &tau[1], &
					x[1], &lda, &work[1], &lwork, &info);

/*                          Check error code from DGERQS. */

				if (info != 0) {
				    alaerh_(path, "DGERQS", &info, &c__0, 
					    " ", &m, &n, nrhs, &c_n1, &nb, &
					    imat, &nfail, &nerrs, nout);
				}

				dget02_("No transpose", &m, &n, nrhs, &a[1], &
					lda, &x[1], &lda, &b[1], &lda, &rwork[
					1], &result[6]);
				++nt;
			    } else {
				result[6] = 0.;
			    }
			} else {
			    result[2] = 0.;
			    result[3] = 0.;
			    result[4] = 0.;
			    result[5] = 0.;
			}

/*                    Print information about the tests that did not   
                      pass the threshold. */

			i__5 = nt;
			for (i__ = 1; i__ <= i__5; ++i__) {
			    if (result[i__ - 1] >= *thresh) {
				if (nfail == 0 && nerrs == 0) {
				    alahd_(nout, path);
				}
				io___33.ciunit = *nout;
				s_wsfe(&io___33);
				do_fio(&c__1, (char *)&m, (ftnlen)sizeof(
					integer));
				do_fio(&c__1, (char *)&n, (ftnlen)sizeof(
					integer));
				do_fio(&c__1, (char *)&k, (ftnlen)sizeof(
					integer));
				do_fio(&c__1, (char *)&nb, (ftnlen)sizeof(
					integer));
				do_fio(&c__1, (char *)&nx, (ftnlen)sizeof(
					integer));
				do_fio(&c__1, (char *)&imat, (ftnlen)sizeof(
					integer));
				do_fio(&c__1, (char *)&i__, (ftnlen)sizeof(
					integer));
				do_fio(&c__1, (char *)&result[i__ - 1], (
					ftnlen)sizeof(doublereal));
				e_wsfe();
				++nfail;
			    }
/* L20: */
			}
			nrun += nt;
/* L30: */
		    }
/* L40: */
		}
L50:
		;
	    }
/* L60: */
	}
/* L70: */
    }

/*     Print a summary of the results. */

    alasum_(path, nout, &nfail, &nrun, &nerrs);

    return 0;

/*     End of DCHKRQ */

} /* dchkrq_ */