dget37.c

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/* dget37.f -- translated by f2c (version 20061008).
   You must link the resulting object file with libf2c:
        on Microsoft Windows system, link with libf2c.lib;
        on Linux or Unix systems, link with .../path/to/libf2c.a -lm
        or, if you install libf2c.a in a standard place, with -lf2c -lm
        -- in that order, at the end of the command line, as in
                cc *.o -lf2c -lm
        Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,

                http://www.netlib.org/f2c/libf2c.zip
*/

#include "f2c.h"
#include "blaswrap.h"

/* Table of constant values */

static integer c__3 = 3;
static integer c__1 = 1;
static integer c__5 = 5;
static integer c__20 = 20;
static integer c__1200 = 1200;
static integer c__0 = 0;

/* Subroutine */ int dget37_(doublereal *rmax, integer *lmax, integer *ninfo, 
        integer *knt, integer *nin)
{
    /* System generated locals */
    integer i__1, i__2;
    doublereal d__1, d__2;

    /* Builtin functions */
    double sqrt(doublereal);
    integer s_rsle(cilist *), do_lio(integer *, integer *, char *, ftnlen), 
            e_rsle(void);

    /* Local variables */
    integer i__, j, m, n;
    doublereal s[20], t[400]    /* was [20][20] */, v, le[400]  /* was [20][
            20] */, re[400]     /* was [20][20] */, wi[20], wr[20], val[3], 
            dum[1], eps, sep[20], sin__[20], tol, tmp[400]      /* was [20][
            20] */;
    integer ifnd, icmp, iscl, info, lcmp[3], kmin;
    doublereal wiin[20], vmax, tnrm, wrin[20], work[1200], vmul, stmp[20];
    extern /* Subroutine */ int dscal_(integer *, doublereal *, doublereal *, 
            integer *);
    doublereal sepin[20];
    extern /* Subroutine */ int dcopy_(integer *, doublereal *, integer *, 
            doublereal *, integer *);
    doublereal vimin, tolin, vrmin;
    integer iwork[40];
    doublereal witmp[20], wrtmp[20];
    extern /* Subroutine */ int dlabad_(doublereal *, doublereal *);
    extern doublereal dlamch_(char *), dlange_(char *, integer *, 
            integer *, doublereal *, integer *, doublereal *);
    extern /* Subroutine */ int dgehrd_(integer *, integer *, integer *, 
            doublereal *, integer *, doublereal *, doublereal *, integer *, 
            integer *), dlacpy_(char *, integer *, integer *, doublereal *, 
            integer *, doublereal *, integer *);
    logical select[20];
    doublereal bignum;
    extern /* Subroutine */ int dhseqr_(char *, char *, integer *, integer *, 
            integer *, doublereal *, integer *, doublereal *, doublereal *, 
            doublereal *, integer *, doublereal *, integer *, integer *), dtrevc_(char *, char *, logical *, integer *, 
            doublereal *, integer *, doublereal *, integer *, doublereal *, 
            integer *, integer *, integer *, doublereal *, integer *), dtrsna_(char *, char *, logical *, integer *, doublereal 
            *, integer *, doublereal *, integer *, doublereal *, integer *, 
            doublereal *, doublereal *, integer *, integer *, doublereal *, 
            integer *, integer *, integer *);
    doublereal septmp[20], smlnum;

    /* Fortran I/O blocks */
    static cilist io___5 = { 0, 0, 0, 0, 0 };
    static cilist io___8 = { 0, 0, 0, 0, 0 };
    static cilist io___11 = { 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 .. */
/*     .. */
/*     .. Array Arguments .. */
/*     .. */

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

/*  DGET37 tests DTRSNA, a routine for estimating condition numbers of */
/*  eigenvalues and/or right eigenvectors of a matrix. */

/*  The test matrices are read from a file with logical unit number NIN. */

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

/*  RMAX    (output) DOUBLE PRECISION array, dimension (3) */
/*          Value of the largest test ratio. */
/*          RMAX(1) = largest ratio comparing different calls to DTRSNA */
/*          RMAX(2) = largest error in reciprocal condition */
/*                    numbers taking their conditioning into account */
/*          RMAX(3) = largest error in reciprocal condition */
/*                    numbers not taking their conditioning into */
/*                    account (may be larger than RMAX(2)) */

/*  LMAX    (output) INTEGER array, dimension (3) */
/*          LMAX(i) is example number where largest test ratio */
/*          RMAX(i) is achieved. Also: */
/*          If DGEHRD returns INFO nonzero on example i, LMAX(1)=i */
/*          If DHSEQR returns INFO nonzero on example i, LMAX(2)=i */
/*          If DTRSNA returns INFO nonzero on example i, LMAX(3)=i */

/*  NINFO   (output) INTEGER array, dimension (3) */
/*          NINFO(1) = No. of times DGEHRD returned INFO nonzero */
/*          NINFO(2) = No. of times DHSEQR returned INFO nonzero */
/*          NINFO(3) = No. of times DTRSNA returned INFO nonzero */

/*  KNT     (output) INTEGER */
/*          Total number of examples tested. */

/*  NIN     (input) INTEGER */
/*          Input logical unit number */

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

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

    /* Parameter adjustments */
    --ninfo;
    --lmax;
    --rmax;

    /* Function Body */
    eps = dlamch_("P");
    smlnum = dlamch_("S") / eps;
    bignum = 1. / smlnum;
    dlabad_(&smlnum, &bignum);

/*     EPSIN = 2**(-24) = precision to which input data computed */

    eps = max(eps,5.9605e-8);
    rmax[1] = 0.;
    rmax[2] = 0.;
    rmax[3] = 0.;
    lmax[1] = 0;
    lmax[2] = 0;
    lmax[3] = 0;
    *knt = 0;
    ninfo[1] = 0;
    ninfo[2] = 0;
    ninfo[3] = 0;

    val[0] = sqrt(smlnum);
    val[1] = 1.;
    val[2] = sqrt(bignum);

/*     Read input data until N=0.  Assume input eigenvalues are sorted */
/*     lexicographically (increasing by real part, then decreasing by */
/*     imaginary part) */

L10:
    io___5.ciunit = *nin;
    s_rsle(&io___5);
    do_lio(&c__3, &c__1, (char *)&n, (ftnlen)sizeof(integer));
    e_rsle();
    if (n == 0) {
        return 0;
    }
    i__1 = n;
    for (i__ = 1; i__ <= i__1; ++i__) {
        io___8.ciunit = *nin;
        s_rsle(&io___8);
        i__2 = n;
        for (j = 1; j <= i__2; ++j) {
            do_lio(&c__5, &c__1, (char *)&tmp[i__ + j * 20 - 21], (ftnlen)
                    sizeof(doublereal));
        }
        e_rsle();
/* L20: */
    }
    i__1 = n;
    for (i__ = 1; i__ <= i__1; ++i__) {
        io___11.ciunit = *nin;
        s_rsle(&io___11);
        do_lio(&c__5, &c__1, (char *)&wrin[i__ - 1], (ftnlen)sizeof(
                doublereal));
        do_lio(&c__5, &c__1, (char *)&wiin[i__ - 1], (ftnlen)sizeof(
                doublereal));
        do_lio(&c__5, &c__1, (char *)&sin__[i__ - 1], (ftnlen)sizeof(
                doublereal));
        do_lio(&c__5, &c__1, (char *)&sepin[i__ - 1], (ftnlen)sizeof(
                doublereal));
        e_rsle();
/* L30: */
    }
    tnrm = dlange_("M", &n, &n, tmp, &c__20, work);

/*     Begin test */

    for (iscl = 1; iscl <= 3; ++iscl) {

/*        Scale input matrix */

        ++(*knt);
        dlacpy_("F", &n, &n, tmp, &c__20, t, &c__20);
        vmul = val[iscl - 1];
        i__1 = n;
        for (i__ = 1; i__ <= i__1; ++i__) {
            dscal_(&n, &vmul, &t[i__ * 20 - 20], &c__1);
/* L40: */
        }
        if (tnrm == 0.) {
            vmul = 1.;
        }

/*        Compute eigenvalues and eigenvectors */

        i__1 = 1200 - n;
        dgehrd_(&n, &c__1, &n, t, &c__20, work, &work[n], &i__1, &info);
        if (info != 0) {
            lmax[1] = *knt;
            ++ninfo[1];
            goto L240;
        }
        i__1 = n - 2;
        for (j = 1; j <= i__1; ++j) {
            i__2 = n;
            for (i__ = j + 2; i__ <= i__2; ++i__) {
                t[i__ + j * 20 - 21] = 0.;
/* L50: */
            }
/* L60: */
        }

/*        Compute Schur form */

        dhseqr_("S", "N", &n, &c__1, &n, t, &c__20, wr, wi, dum, &c__1, work, 
                &c__1200, &info);
        if (info != 0) {
            lmax[2] = *knt;
            ++ninfo[2];
            goto L240;
        }

/*        Compute eigenvectors */

        dtrevc_("Both", "All", select, &n, t, &c__20, le, &c__20, re, &c__20, 
                &n, &m, work, &info);

/*        Compute condition numbers */

        dtrsna_("Both", "All", select, &n, t, &c__20, le, &c__20, re, &c__20, 
                s, sep, &n, &m, work, &n, iwork, &info);
        if (info != 0) {
            lmax[3] = *knt;
            ++ninfo[3];
            goto L240;
        }

/*        Sort eigenvalues and condition numbers lexicographically */
/*        to compare with inputs */

        dcopy_(&n, wr, &c__1, wrtmp, &c__1);
        dcopy_(&n, wi, &c__1, witmp, &c__1);
        dcopy_(&n, s, &c__1, stmp, &c__1);
        dcopy_(&n, sep, &c__1, septmp, &c__1);
        d__1 = 1. / vmul;
        dscal_(&n, &d__1, septmp, &c__1);
        i__1 = n - 1;
        for (i__ = 1; i__ <= i__1; ++i__) {
            kmin = i__;
            vrmin = wrtmp[i__ - 1];
            vimin = witmp[i__ - 1];
            i__2 = n;
            for (j = i__ + 1; j <= i__2; ++j) {
                if (wrtmp[j - 1] < vrmin) {
                    kmin = j;
                    vrmin = wrtmp[j - 1];
                    vimin = witmp[j - 1];
                }
/* L70: */
            }
            wrtmp[kmin - 1] = wrtmp[i__ - 1];
            witmp[kmin - 1] = witmp[i__ - 1];
            wrtmp[i__ - 1] = vrmin;
            witmp[i__ - 1] = vimin;
            vrmin = stmp[kmin - 1];
            stmp[kmin - 1] = stmp[i__ - 1];
            stmp[i__ - 1] = vrmin;
            vrmin = septmp[kmin - 1];
            septmp[kmin - 1] = septmp[i__ - 1];
            septmp[i__ - 1] = vrmin;
/* L80: */
        }

/*        Compare condition numbers for eigenvalues */
/*        taking their condition numbers into account */

/* Computing MAX */
        d__1 = (doublereal) n * 2. * eps * tnrm;
        v = max(d__1,smlnum);
        if (tnrm == 0.) {
            v = 1.;
        }
        i__1 = n;
        for (i__ = 1; i__ <= i__1; ++i__) {
            if (v > septmp[i__ - 1]) {
                tol = 1.;
            } else {
                tol = v / septmp[i__ - 1];
            }
            if (v > sepin[i__ - 1]) {
                tolin = 1.;
            } else {
                tolin = v / sepin[i__ - 1];
            }
/* Computing MAX */
            d__1 = tol, d__2 = smlnum / eps;
            tol = max(d__1,d__2);
/* Computing MAX */
            d__1 = tolin, d__2 = smlnum / eps;
            tolin = max(d__1,d__2);
            if (eps * (sin__[i__ - 1] - tolin) > stmp[i__ - 1] + tol) {
                vmax = 1. / eps;
            } else if (sin__[i__ - 1] - tolin > stmp[i__ - 1] + tol) {
                vmax = (sin__[i__ - 1] - tolin) / (stmp[i__ - 1] + tol);
            } else if (sin__[i__ - 1] + tolin < eps * (stmp[i__ - 1] - tol)) {
                vmax = 1. / eps;
            } else if (sin__[i__ - 1] + tolin < stmp[i__ - 1] - tol) {
                vmax = (stmp[i__ - 1] - tol) / (sin__[i__ - 1] + tolin);
            } else {
                vmax = 1.;
            }
            if (vmax > rmax[2]) {
                rmax[2] = vmax;
                if (ninfo[2] == 0) {
                    lmax[2] = *knt;
                }
            }
/* L90: */
        }

/*        Compare condition numbers for eigenvectors */
/*        taking their condition numbers into account */

        i__1 = n;
        for (i__ = 1; i__ <= i__1; ++i__) {
            if (v > septmp[i__ - 1] * stmp[i__ - 1]) {
                tol = septmp[i__ - 1];
            } else {
                tol = v / stmp[i__ - 1];
            }
            if (v > sepin[i__ - 1] * sin__[i__ - 1]) {
                tolin = sepin[i__ - 1];
            } else {
                tolin = v / sin__[i__ - 1];
            }
/* Computing MAX */
            d__1 = tol, d__2 = smlnum / eps;
            tol = max(d__1,d__2);
/* Computing MAX */
            d__1 = tolin, d__2 = smlnum / eps;
            tolin = max(d__1,d__2);
            if (eps * (sepin[i__ - 1] - tolin) > septmp[i__ - 1] + tol) {
                vmax = 1. / eps;
            } else if (sepin[i__ - 1] - tolin > septmp[i__ - 1] + tol) {
                vmax = (sepin[i__ - 1] - tolin) / (septmp[i__ - 1] + tol);
            } else if (sepin[i__ - 1] + tolin < eps * (septmp[i__ - 1] - tol))
                     {
                vmax = 1. / eps;
            } else if (sepin[i__ - 1] + tolin < septmp[i__ - 1] - tol) {
                vmax = (septmp[i__ - 1] - tol) / (sepin[i__ - 1] + tolin);
            } else {
                vmax = 1.;
            }
            if (vmax > rmax[2]) {
                rmax[2] = vmax;
                if (ninfo[2] == 0) {
                    lmax[2] = *knt;
                }
            }
/* L100: */
        }

/*        Compare condition numbers for eigenvalues */
/*        without taking their condition numbers into account */

        i__1 = n;
        for (i__ = 1; i__ <= i__1; ++i__) {
            if (sin__[i__ - 1] <= (doublereal) (n << 1) * eps && stmp[i__ - 1]
                     <= (doublereal) (n << 1) * eps) {
                vmax = 1.;
            } else if (eps * sin__[i__ - 1] > stmp[i__ - 1]) {
                vmax = 1. / eps;
            } else if (sin__[i__ - 1] > stmp[i__ - 1]) {
                vmax = sin__[i__ - 1] / stmp[i__ - 1];
            } else if (sin__[i__ - 1] < eps * stmp[i__ - 1]) {
                vmax = 1. / eps;
            } else if (sin__[i__ - 1] < stmp[i__ - 1]) {
                vmax = stmp[i__ - 1] / sin__[i__ - 1];
            } else {
                vmax = 1.;
            }
            if (vmax > rmax[3]) {
                rmax[3] = vmax;
                if (ninfo[3] == 0) {
                    lmax[3] = *knt;
                }
            }
/* L110: */
        }

/*        Compare condition numbers for eigenvectors */
/*        without taking their condition numbers into account */

        i__1 = n;
        for (i__ = 1; i__ <= i__1; ++i__) {
            if (sepin[i__ - 1] <= v && septmp[i__ - 1] <= v) {
                vmax = 1.;
            } else if (eps * sepin[i__ - 1] > septmp[i__ - 1]) {
                vmax = 1. / eps;
            } else if (sepin[i__ - 1] > septmp[i__ - 1]) {
                vmax = sepin[i__ - 1] / septmp[i__ - 1];
            } else if (sepin[i__ - 1] < eps * septmp[i__ - 1]) {
                vmax = 1. / eps;
            } else if (sepin[i__ - 1] < septmp[i__ - 1]) {
                vmax = septmp[i__ - 1] / sepin[i__ - 1];
            } else {
                vmax = 1.;
            }
            if (vmax > rmax[3]) {
                rmax[3] = vmax;
                if (ninfo[3] == 0) {
                    lmax[3] = *knt;
                }
            }
/* L120: */
        }

/*        Compute eigenvalue condition numbers only and compare */

        vmax = 0.;
        dum[0] = -1.;
        dcopy_(&n, dum, &c__0, stmp, &c__1);
        dcopy_(&n, dum, &c__0, septmp, &c__1);
        dtrsna_("Eigcond", "All", select, &n, t, &c__20, le, &c__20, re, &
                c__20, stmp, septmp, &n, &m, work, &n, iwork, &info);
        if (info != 0) {
            lmax[3] = *knt;
            ++ninfo[3];
            goto L240;
        }
        i__1 = n;
        for (i__ = 1; i__ <= i__1; ++i__) {
            if (stmp[i__ - 1] != s[i__ - 1]) {
                vmax = 1. / eps;
            }
            if (septmp[i__ - 1] != dum[0]) {
                vmax = 1. / eps;
            }
/* L130: */
        }

/*        Compute eigenvector condition numbers only and compare */

        dcopy_(&n, dum, &c__0, stmp, &c__1);
        dcopy_(&n, dum, &c__0, septmp, &c__1);
        dtrsna_("Veccond", "All", select, &n, t, &c__20, le, &c__20, re, &
                c__20, stmp, septmp, &n, &m, work, &n, iwork, &info);
        if (info != 0) {
            lmax[3] = *knt;
            ++ninfo[3];
            goto L240;
        }
        i__1 = n;
        for (i__ = 1; i__ <= i__1; ++i__) {
            if (stmp[i__ - 1] != dum[0]) {
                vmax = 1. / eps;
            }
            if (septmp[i__ - 1] != sep[i__ - 1]) {
                vmax = 1. / eps;
            }
/* L140: */
        }

/*        Compute all condition numbers using SELECT and compare */

        i__1 = n;
        for (i__ = 1; i__ <= i__1; ++i__) {
            select[i__ - 1] = TRUE_;
/* L150: */
        }
        dcopy_(&n, dum, &c__0, stmp, &c__1);
        dcopy_(&n, dum, &c__0, septmp, &c__1);
        dtrsna_("Bothcond", "Some", select, &n, t, &c__20, le, &c__20, re, &
                c__20, stmp, septmp, &n, &m, work, &n, iwork, &info);
        if (info != 0) {
            lmax[3] = *knt;
            ++ninfo[3];
            goto L240;
        }
        i__1 = n;
        for (i__ = 1; i__ <= i__1; ++i__) {
            if (septmp[i__ - 1] != sep[i__ - 1]) {
                vmax = 1. / eps;
            }
            if (stmp[i__ - 1] != s[i__ - 1]) {
                vmax = 1. / eps;
            }
/* L160: */
        }

/*        Compute eigenvalue condition numbers using SELECT and compare */

        dcopy_(&n, dum, &c__0, stmp, &c__1);
        dcopy_(&n, dum, &c__0, septmp, &c__1);
        dtrsna_("Eigcond", "Some", select, &n, t, &c__20, le, &c__20, re, &
                c__20, stmp, septmp, &n, &m, work, &n, iwork, &info);
        if (info != 0) {
            lmax[3] = *knt;
            ++ninfo[3];
            goto L240;
        }
        i__1 = n;
        for (i__ = 1; i__ <= i__1; ++i__) {
            if (stmp[i__ - 1] != s[i__ - 1]) {
                vmax = 1. / eps;
            }
            if (septmp[i__ - 1] != dum[0]) {
                vmax = 1. / eps;
            }
/* L170: */
        }

/*        Compute eigenvector condition numbers using SELECT and compare */

        dcopy_(&n, dum, &c__0, stmp, &c__1);
        dcopy_(&n, dum, &c__0, septmp, &c__1);
        dtrsna_("Veccond", "Some", select, &n, t, &c__20, le, &c__20, re, &
                c__20, stmp, septmp, &n, &m, work, &n, iwork, &info);
        if (info != 0) {
            lmax[3] = *knt;
            ++ninfo[3];
            goto L240;
        }
        i__1 = n;
        for (i__ = 1; i__ <= i__1; ++i__) {
            if (stmp[i__ - 1] != dum[0]) {
                vmax = 1. / eps;
            }
            if (septmp[i__ - 1] != sep[i__ - 1]) {
                vmax = 1. / eps;
            }
/* L180: */
        }
        if (vmax > rmax[1]) {
            rmax[1] = vmax;
            if (ninfo[1] == 0) {
                lmax[1] = *knt;
            }
        }

/*        Select first real and first complex eigenvalue */

        if (wi[0] == 0.) {
            lcmp[0] = 1;
            ifnd = 0;
            i__1 = n;
            for (i__ = 2; i__ <= i__1; ++i__) {
                if (ifnd == 1 || wi[i__ - 1] == 0.) {
                    select[i__ - 1] = FALSE_;
                } else {
                    ifnd = 1;
                    lcmp[1] = i__;
                    lcmp[2] = i__ + 1;
                    dcopy_(&n, &re[i__ * 20 - 20], &c__1, &re[20], &c__1);
                    dcopy_(&n, &re[(i__ + 1) * 20 - 20], &c__1, &re[40], &
                            c__1);
                    dcopy_(&n, &le[i__ * 20 - 20], &c__1, &le[20], &c__1);
                    dcopy_(&n, &le[(i__ + 1) * 20 - 20], &c__1, &le[40], &
                            c__1);
                }
/* L190: */
            }
            if (ifnd == 0) {
                icmp = 1;
            } else {
                icmp = 3;
            }
        } else {
            lcmp[0] = 1;
            lcmp[1] = 2;
            ifnd = 0;
            i__1 = n;
            for (i__ = 3; i__ <= i__1; ++i__) {
                if (ifnd == 1 || wi[i__ - 1] != 0.) {
                    select[i__ - 1] = FALSE_;
                } else {
                    lcmp[2] = i__;
                    ifnd = 1;
                    dcopy_(&n, &re[i__ * 20 - 20], &c__1, &re[40], &c__1);
                    dcopy_(&n, &le[i__ * 20 - 20], &c__1, &le[40], &c__1);
                }
/* L200: */
            }
            if (ifnd == 0) {
                icmp = 2;
            } else {
                icmp = 3;
            }
        }

/*        Compute all selected condition numbers */

        dcopy_(&icmp, dum, &c__0, stmp, &c__1);
        dcopy_(&icmp, dum, &c__0, septmp, &c__1);
        dtrsna_("Bothcond", "Some", select, &n, t, &c__20, le, &c__20, re, &
                c__20, stmp, septmp, &n, &m, work, &n, iwork, &info);
        if (info != 0) {
            lmax[3] = *knt;
            ++ninfo[3];
            goto L240;
        }
        i__1 = icmp;
        for (i__ = 1; i__ <= i__1; ++i__) {
            j = lcmp[i__ - 1];
            if (septmp[i__ - 1] != sep[j - 1]) {
                vmax = 1. / eps;
            }
            if (stmp[i__ - 1] != s[j - 1]) {
                vmax = 1. / eps;
            }
/* L210: */
        }

/*        Compute selected eigenvalue condition numbers */

        dcopy_(&icmp, dum, &c__0, stmp, &c__1);
        dcopy_(&icmp, dum, &c__0, septmp, &c__1);
        dtrsna_("Eigcond", "Some", select, &n, t, &c__20, le, &c__20, re, &
                c__20, stmp, septmp, &n, &m, work, &n, iwork, &info);
        if (info != 0) {
            lmax[3] = *knt;
            ++ninfo[3];
            goto L240;
        }
        i__1 = icmp;
        for (i__ = 1; i__ <= i__1; ++i__) {
            j = lcmp[i__ - 1];
            if (stmp[i__ - 1] != s[j - 1]) {
                vmax = 1. / eps;
            }
            if (septmp[i__ - 1] != dum[0]) {
                vmax = 1. / eps;
            }
/* L220: */
        }

/*        Compute selected eigenvector condition numbers */

        dcopy_(&icmp, dum, &c__0, stmp, &c__1);
        dcopy_(&icmp, dum, &c__0, septmp, &c__1);
        dtrsna_("Veccond", "Some", select, &n, t, &c__20, le, &c__20, re, &
                c__20, stmp, septmp, &n, &m, work, &n, iwork, &info);
        if (info != 0) {
            lmax[3] = *knt;
            ++ninfo[3];
            goto L240;
        }
        i__1 = icmp;
        for (i__ = 1; i__ <= i__1; ++i__) {
            j = lcmp[i__ - 1];
            if (stmp[i__ - 1] != dum[0]) {
                vmax = 1. / eps;
            }
            if (septmp[i__ - 1] != sep[j - 1]) {
                vmax = 1. / eps;
            }
/* L230: */
        }
        if (vmax > rmax[1]) {
            rmax[1] = vmax;
            if (ninfo[1] == 0) {
                lmax[1] = *knt;
            }
        }
L240:
        ;
    }
    goto L10;

/*     End of DGET37 */

} /* dget37_ */