#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"

/* Table of constant values */

static integer c__8 = 8;
static integer c__1 = 1;
static integer c__0 = 0;

/* Subroutine */ int sckgsv_(integer *nm, integer *mval, integer *pval, 
	integer *nval, integer *nmats, integer *iseed, real *thresh, integer *
	nmax, real *a, real *af, real *b, real *bf, real *u, real *v, real *q,
	 real *alpha, real *beta, real *r__, integer *iwork, real *work, real 
	*rwork, integer *nin, integer *nout, integer *info)
{
    /* Format strings */
    static char fmt_9999[] = "(\002 SLATMS in SCKGSV   INFO = \002,i5)";
    static char fmt_9998[] = "(\002 M=\002,i4,\002 P=\002,i4,\002, N=\002,"
	    "i4,\002, type \002,i2,\002, test \002,i2,\002, ratio=\002,g13.6)";

    /* System generated locals */
    integer i__1, i__2;

    /* 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 imat;
    static char path[3], type__[1];
    static integer nrun, i__, m, n, p, modea, modeb, nfail;
    static char dista[1], distb[1];
    static integer iinfo;
    static real anorm, bnorm;
    static integer lwork;
    extern /* Subroutine */ int slatb9_(char *, integer *, integer *, integer 
	    *, integer *, char *, integer *, integer *, integer *, integer *, 
	    real *, real *, integer *, integer *, real *, real *, char *, 
	    char *), alahdg_(integer *, char *
	    );
    static integer im;
    static real cndnma, cndnmb;
    static integer nt;
    extern /* Subroutine */ int alareq_(char *, integer *, logical *, integer 
	    *, integer *, integer *), alasum_(char *, integer *, 
	    integer *, integer *, integer *), slatms_(integer *, 
	    integer *, char *, integer *, char *, real *, integer *, real *, 
	    real *, integer *, integer *, char *, real *, integer *, real *, 
	    integer *);
    static logical dotype[8], firstt;
    static real result[7];
    extern /* Subroutine */ int sgsvts_(integer *, integer *, integer *, real 
	    *, real *, integer *, real *, real *, integer *, real *, integer *
	    , real *, integer *, real *, integer *, real *, real *, real *, 
	    integer *, integer *, real *, integer *, real *, real *);
    static integer lda, ldb, kla, klb, kua, kub, ldq, ldr, ldu, ldv;

    /* Fortran I/O blocks */
    static cilist io___32 = { 0, 0, 0, fmt_9999, 0 };
    static cilist io___33 = { 0, 0, 0, fmt_9999, 0 };
    static cilist io___37 = { 0, 0, 0, fmt_9998, 0 };



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


    Purpose   
    =======   

    SCKGSV tests SGGSVD:   
           the GSVD for M-by-N matrix A and P-by-N matrix B.   

    Arguments   
    =========   

    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.   

    PVAL    (input) INTEGER array, dimension (NP)   
            The values of the matrix row dimension P.   

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

    NMATS   (input) INTEGER   
            The number of matrix types to be tested for each combination   
            of matrix dimensions.  If NMATS >= NTYPES (the maximum   
            number of matrix types), then all the different types are   
            generated for testing.  If NMATS < NTYPES, another input line   
            is read to get the numbers of the matrix types to be used.   

    ISEED   (input/output) INTEGER array, dimension (4)   
            On entry, the seed of the random number generator.  The array   
            elements should be between 0 and 4095, otherwise they will be   
            reduced mod 4096, and ISEED(4) must be odd.   
            On exit, the next seed in the random number sequence after   
            all the test matrices have been generated.   

    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.   

    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)   

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

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

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

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

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

    ALPHA   (workspace) REAL array, dimension (NMAX)   

    BETA    (workspace) REAL array, dimension (NMAX)   

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

    IWORK   (workspace) INTEGER array, dimension (NMAX)   

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

    RWORK   (workspace) REAL array, dimension (NMAX)   

    NIN     (input) INTEGER   
            The unit number for input.   

    NOUT    (input) INTEGER   
            The unit number for output.   

    INFO    (output) INTEGER   
            = 0 :  successful exit   
            > 0 :  If SLATMS returns an error code, the absolute value   
                   of it is returned.   

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


       Initialize constants and the random number seed.   

       Parameter adjustments */
    --rwork;
    --work;
    --iwork;
    --r__;
    --beta;
    --alpha;
    --q;
    --v;
    --u;
    --bf;
    --b;
    --af;
    --a;
    --iseed;
    --nval;
    --pval;
    --mval;

    /* Function Body */
    s_copy(path, "GSV", (ftnlen)3, (ftnlen)3);
    *info = 0;
    nrun = 0;
    nfail = 0;
    firstt = TRUE_;
    alareq_(path, nmats, dotype, &c__8, nin, nout);
    lda = *nmax;
    ldb = *nmax;
    ldu = *nmax;
    ldv = *nmax;
    ldq = *nmax;
    ldr = *nmax;
    lwork = *nmax * *nmax;

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

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

	for (imat = 1; imat <= 8; ++imat) {

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

	    if (! dotype[imat - 1]) {
		goto L20;
	    }

/*           Set up parameters with SLATB9 and generate test   
             matrices A and B with SLATMS. */

	    slatb9_(path, &imat, &m, &p, &n, type__, &kla, &kua, &klb, &kub, &
		    anorm, &bnorm, &modea, &modeb, &cndnma, &cndnmb, dista, 
		    distb);

/*           Generate M by N matrix A */

	    slatms_(&m, &n, dista, &iseed[1], type__, &rwork[1], &modea, &
		    cndnma, &anorm, &kla, &kua, "No packing", &a[1], &lda, &
		    work[1], &iinfo);
	    if (iinfo != 0) {
		io___32.ciunit = *nout;
		s_wsfe(&io___32);
		do_fio(&c__1, (char *)&iinfo, (ftnlen)sizeof(integer));
		e_wsfe();
		*info = abs(iinfo);
		goto L20;
	    }

	    slatms_(&p, &n, distb, &iseed[1], type__, &rwork[1], &modeb, &
		    cndnmb, &bnorm, &klb, &kub, "No packing", &b[1], &ldb, &
		    work[1], &iinfo);
	    if (iinfo != 0) {
		io___33.ciunit = *nout;
		s_wsfe(&io___33);
		do_fio(&c__1, (char *)&iinfo, (ftnlen)sizeof(integer));
		e_wsfe();
		*info = abs(iinfo);
		goto L20;
	    }

	    nt = 6;

	    sgsvts_(&m, &p, &n, &a[1], &af[1], &lda, &b[1], &bf[1], &ldb, &u[
		    1], &ldu, &v[1], &ldv, &q[1], &ldq, &alpha[1], &beta[1], &
		    r__[1], &ldr, &iwork[1], &work[1], &lwork, &rwork[1], 
		    result);

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

	    i__2 = nt;
	    for (i__ = 1; i__ <= i__2; ++i__) {
		if (result[i__ - 1] >= *thresh) {
		    if (nfail == 0 && firstt) {
			firstt = FALSE_;
			alahdg_(nout, path);
		    }
		    io___37.ciunit = *nout;
		    s_wsfe(&io___37);
		    do_fio(&c__1, (char *)&m, (ftnlen)sizeof(integer));
		    do_fio(&c__1, (char *)&p, (ftnlen)sizeof(integer));
		    do_fio(&c__1, (char *)&n, (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;
		}
/* L10: */
	    }
	    nrun += nt;
L20:
	    ;
	}
/* L30: */
    }

/*     Print a summary of the results. */

    alasum_(path, nout, &nfail, &nrun, &c__0);

    return 0;

/*     End of SCKGSV */

} /* sckgsv_ */

