#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 schkrq_(logical *dotype, integer *nm, integer *mval, 
	integer *nn, integer *nval, integer *nnb, integer *nbval, integer *
	nxval, integer *nrhs, real *thresh, logical *tsterr, integer *nmax, 
	real *a, real *af, real *aq, real *ar, real *ac, real *b, real *x, 
	real *xact, real *tau, real *work, real *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, nfail, iseed[4];
    extern /* Subroutine */ int sget02_(char *, integer *, integer *, integer 
	    *, real *, integer *, real *, integer *, real *, integer *, real *
	    , real *);
    static real anorm;
    static integer minmn, nerrs;
    extern /* Subroutine */ int srqt01_(integer *, integer *, real *, real *, 
	    real *, real *, integer *, real *, real *, integer *, real *, 
	    real *), srqt02_(integer *, integer *, integer *, real *, real *, 
	    real *, real *, integer *, real *, real *, integer *, real *, 
	    real *), srqt03_(integer *, integer *, integer *, real *, real *, 
	    real *, real *, integer *, real *, real *, integer *, real *, 
	    real *);
    static integer lwork;
    extern /* Subroutine */ int slatb4_(char *, integer *, integer *, integer 
	    *, char *, integer *, integer *, real *, integer *, real *, 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 alasum_(char *, integer *, integer *, integer 
	    *, integer *);
    static real cndnum;
    extern /* Subroutine */ int slacpy_(char *, integer *, integer *, real *, 
	    integer *, real *, integer *), slarhs_(char *, char *, 
	    char *, char *, integer *, integer *, integer *, integer *, 
	    integer *, real *, integer *, real *, integer *, real *, integer *
	    , integer *, integer *), xlaenv_(
	    integer *, integer *), slatms_(integer *, integer *, char *, 
	    integer *, char *, real *, integer *, real *, real *, integer *, 
	    integer *, char *, real *, integer *, real *, integer *), sgerqs_(integer *, integer *, integer *, real *, 
	    integer *, real *, real *, integer *, real *, integer *, integer *
	    );
    static real result[7];
    extern /* Subroutine */ int serrrq_(char *, integer *);
    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   
    =======   

    SCHKRQ tests SGERQF, SORGRQ and SORMRQ.   

    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) REAL   
            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) REAL array, dimension (NMAX*NMAX)   

    AF      (workspace) REAL array, dimension (NMAX*NMAX)   

    AQ      (workspace) REAL array, dimension (NMAX*NMAX)   

    AR      (workspace) REAL array, dimension (NMAX*NMAX)   

    AC      (workspace) REAL array, dimension (NMAX*NMAX)   

    B       (workspace) REAL array, dimension (NMAX*NRHS)   

    X       (workspace) REAL array, dimension (NMAX*NRHS)   

    XACT    (workspace) REAL array, dimension (NMAX*NRHS)   

    TAU     (workspace) REAL array, dimension (NMAX)   

    WORK    (workspace) REAL array, dimension (NMAX*NMAX)   

    RWORK   (workspace) REAL 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, "Single 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) {
	serrrq_(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 SLATB4 and generate a test matrix   
                with SLATMS. */

		slatb4_(path, &imat, &m, &n, type__, &kl, &ku, &anorm, &mode, 
			&cndnum, dist);

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

/*              Check error code from SLATMS. */

		if (info != 0) {
		    alaerh_(path, "SLATMS", &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 SRQT01; other values are   
                used in the calls of SRQT02, 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 SGERQF */

			    srqt01_(&m, &n, &a[1], &af[1], &aq[1], &ar[1], &
				    lda, &tau[1], &work[1], &lwork, &rwork[1],
				     result);
			} else if (m <= n) {

/*                       Test SORGRQ, using factorization   
                         returned by SRQT01 */

			    srqt02_(&m, &n, &k, &a[1], &af[1], &aq[1], &ar[1],
				     &lda, &tau[1], &work[1], &lwork, &rwork[
				    1], result);
			} else {
			    result[0] = 0.f;
			    result[1] = 0.f;
			}
			if (m >= k) {

/*                       Test SORMRQ, using factorization returned   
                         by SRQT01 */

			    srqt03_(&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 SGERQS 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, "SLARHS", (ftnlen)6, (
					ftnlen)6);
				slarhs_(path, "New", "Full", "No transpose", &
					m, &n, &c__0, &c__0, nrhs, &a[1], &
					lda, &xact[1], &lda, &b[1], &lda, 
					iseed, &info);

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

/*                          Check error code from SGERQS. */

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

				sget02_("No transpose", &m, &n, nrhs, &a[1], &
					lda, &x[1], &lda, &b[1], &lda, &rwork[
					1], &result[6]);
				++nt;
			    } else {
				result[6] = 0.f;
			    }
			} else {
			    result[2] = 0.f;
			    result[3] = 0.f;
			    result[4] = 0.f;
			    result[5] = 0.f;
			}

/*                    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(real));
				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 SCHKRQ */

} /* schkrq_ */