ddrvgg.c

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/* ddrvgg.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__1 = 1;
static integer c_n1 = -1;
static integer c__0 = 0;
static integer c__4 = 4;
static doublereal c_b36 = 0.;
static integer c__2 = 2;
static doublereal c_b42 = 1.;
static integer c__3 = 3;
static logical c_true = TRUE_;
static logical c_false = FALSE_;

/* Subroutine */ int ddrvgg_(integer *nsizes, integer *nn, integer *ntypes, 
        logical *dotype, integer *iseed, doublereal *thresh, doublereal *
        thrshn, integer *nounit, doublereal *a, integer *lda, doublereal *b, 
        doublereal *s, doublereal *t, doublereal *s2, doublereal *t2, 
        doublereal *q, integer *ldq, doublereal *z__, doublereal *alphr1, 
        doublereal *alphi1, doublereal *beta1, doublereal *alphr2, doublereal 
        *alphi2, doublereal *beta2, doublereal *vl, doublereal *vr, 
        doublereal *work, integer *lwork, doublereal *result, integer *info)
{
    /* Initialized data */

    static integer kclass[26] = { 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,
            2,2,2,3 };
    static integer kbmagn[26] = { 1,1,1,1,1,1,1,1,3,2,3,2,2,3,1,1,1,1,1,1,1,3,
            2,3,2,1 };
    static integer ktrian[26] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,
            1,1,1,1 };
    static integer iasign[26] = { 0,0,0,0,0,0,2,0,2,2,0,0,2,2,2,0,2,0,0,0,2,2,
            2,2,2,0 };
    static integer ibsign[26] = { 0,0,0,0,0,0,0,2,0,0,2,2,0,0,2,0,2,0,0,0,0,0,
            0,0,0,0 };
    static integer kz1[6] = { 0,1,2,1,3,3 };
    static integer kz2[6] = { 0,0,1,2,1,1 };
    static integer kadd[6] = { 0,0,0,0,3,2 };
    static integer katype[26] = { 0,1,0,1,2,3,4,1,4,4,1,1,4,4,4,2,4,5,8,7,9,4,
            4,4,4,0 };
    static integer kbtype[26] = { 0,0,1,1,2,-3,1,4,1,1,4,4,1,1,-4,2,-4,8,8,8,
            8,8,8,8,8,0 };
    static integer kazero[26] = { 1,1,1,1,1,1,2,1,2,2,1,1,2,2,3,1,3,5,5,5,5,3,
            3,3,3,1 };
    static integer kbzero[26] = { 1,1,1,1,1,1,1,2,1,1,2,2,1,1,4,1,4,6,6,6,6,4,
            4,4,4,1 };
    static integer kamagn[26] = { 1,1,1,1,1,1,1,1,2,3,2,3,2,3,1,1,1,1,1,1,1,2,
            3,3,2,1 };

    /* Format strings */
    static char fmt_9999[] = "(\002 DDRVGG: \002,a,\002 returned INFO=\002,i"
            "6,\002.\002,/9x,\002N=\002,i6,\002, JTYPE=\002,i6,\002, ISEED="
            "(\002,3(i5,\002,\002),i5,\002)\002)";
    static char fmt_9997[] = "(\002 DDRVGG: DGET53 returned INFO=\002,i1,"
            "\002 for eigenvalue \002,i6,\002.\002,/9x,\002N=\002,i6,\002, JT"
            "YPE=\002,i6,\002, ISEED=(\002,3(i5,\002,\002),i5,\002)\002)";
    static char fmt_9996[] = "(\002 DDRVGG: S not in Schur form at eigenvalu"
            "e \002,i6,\002.\002,/9x,\002N=\002,i6,\002, JTYPE=\002,i6,\002, "
            "ISEED=(\002,3(i5,\002,\002),i5,\002)\002)";
    static char fmt_9998[] = "(\002 DDRVGG: \002,a,\002 Eigenvectors from"
            " \002,a,\002 incorrectly \002,\002normalized.\002,/\002 Bits of "
            "error=\002,0p,g10.3,\002,\002,9x,\002N=\002,i6,\002, JTYPE=\002,"
            "i6,\002, ISEED=(\002,3(i5,\002,\002),i5,\002)\002)";
    static char fmt_9995[] = "(/1x,a3,\002 -- Real Generalized eigenvalue pr"
            "oblem driver\002)";
    static char fmt_9994[] = "(\002 Matrix types (see DDRVGG for details):"
            " \002)";
    static char fmt_9993[] = "(\002 Special Matrices:\002,23x,\002(J'=transp"
            "osed Jordan block)\002,/\002   1=(0,0)  2=(I,0)  3=(0,I)  4=(I,I"
            ")  5=(J',J')  \002,\0026=(diag(J',I), diag(I,J'))\002,/\002 Diag"
            "onal Matrices:  ( \002,\002D=diag(0,1,2,...) )\002,/\002   7=(D,"
            "I)   9=(large*D, small*I\002,\002)  11=(large*I, small*D)  13=(l"
            "arge*D, large*I)\002,/\002   8=(I,D)  10=(small*D, large*I)  12="
            "(small*I, large*D) \002,\002 14=(small*D, small*I)\002,/\002  15"
            "=(D, reversed D)\002)";
    static char fmt_9992[] = "(\002 Matrices Rotated by Random \002,a,\002 M"
            "atrices U, V:\002,/\002  16=Transposed Jordan Blocks            "
            " 19=geometric \002,\002alpha, beta=0,1\002,/\002  17=arithm. alp"
            "ha&beta             \002,\002      20=arithmetic alpha, beta=0,"
            "1\002,/\002  18=clustered \002,\002alpha, beta=0,1            21"
            "=random alpha, beta=0,1\002,/\002 Large & Small Matrices:\002,"
            "/\002  22=(large, small)   \002,\00223=(small,large)    24=(smal"
            "l,small)    25=(large,large)\002,/\002  26=random O(1) matrices"
            ".\002)";
    static char fmt_9991[] = "(/\002 Tests performed:  (S is Schur, T is tri"
            "angular, \002,\002Q and Z are \002,a,\002,\002,/20x,\002l and r "
            "are the appropriate left and right\002,/19x,\002eigenvectors, re"
            "sp., a is alpha, b is beta, and\002,/19x,a,\002 means \002,a,"
            "\002.)\002,/\002 1 = | A - Q S Z\002,a,\002 | / ( |A| n ulp )   "
            "   2 = | B - Q T Z\002,a,\002 | / ( |B| n ulp )\002,/\002 3 = | "
            "I - QQ\002,a,\002 | / ( n ulp )             4 = | I - ZZ\002,a"
            ",\002 | / ( n ulp )\002,/\002 5 = difference between (alpha,beta"
            ") and diagonals of\002,\002 (S,T)\002,/\002 6 = max | ( b A - a "
            "B )\002,a,\002 l | / const.   7 = max | ( b A - a B ) r | / cons"
            "t.\002,/1x)";
    static char fmt_9990[] = "(\002 Matrix order=\002,i5,\002, type=\002,i2"
            ",\002, seed=\002,4(i4,\002,\002),\002 result \002,i3,\002 is\002"
            ",0p,f8.2)";
    static char fmt_9989[] = "(\002 Matrix order=\002,i5,\002, type=\002,i2"
            ",\002, seed=\002,4(i4,\002,\002),\002 result \002,i3,\002 is\002"
            ",1p,d10.3)";

    /* System generated locals */
    integer a_dim1, a_offset, b_dim1, b_offset, q_dim1, q_offset, s_dim1, 
            s_offset, s2_dim1, s2_offset, t_dim1, t_offset, t2_dim1, 
            t2_offset, vl_dim1, vl_offset, vr_dim1, vr_offset, z_dim1, 
            z_offset, i__1, i__2, i__3, i__4;
    doublereal d__1, d__2, d__3, d__4, d__5, d__6, d__7, d__8, d__9, d__10;

    /* Builtin functions */
    double d_sign(doublereal *, doublereal *);
    integer s_wsfe(cilist *), do_fio(integer *, char *, ftnlen), e_wsfe(void);

    /* Local variables */
    integer j, n, i1, n1, jc, nb, in, jr, ns, nbz;
    doublereal ulp;
    integer iadd, nmax;
    doublereal temp1, temp2;
    logical badnn;
    extern /* Subroutine */ int dgegs_(char *, char *, integer *, doublereal *
, integer *, doublereal *, integer *, doublereal *, doublereal *, 
            doublereal *, doublereal *, integer *, doublereal *, integer *, 
            doublereal *, integer *, integer *), dget51_(
            integer *, integer *, doublereal *, integer *, doublereal *, 
            integer *, doublereal *, integer *, doublereal *, integer *, 
            doublereal *, doublereal *), dgegv_(char *, char *, integer *, 
            doublereal *, integer *, doublereal *, integer *, doublereal *, 
            doublereal *, doublereal *, doublereal *, integer *, doublereal *, 
             integer *, doublereal *, integer *, integer *), 
            dget52_(logical *, integer *, doublereal *, integer *, doublereal 
            *, integer *, doublereal *, integer *, doublereal *, doublereal *, 
             doublereal *, doublereal *, doublereal *), dget53_(doublereal *, 
            integer *, doublereal *, integer *, doublereal *, doublereal *, 
            doublereal *, doublereal *, integer *);
    doublereal dumma[4];
    integer iinfo;
    doublereal rmagn[4];
    integer nmats, jsize, nerrs, jtype, ntest;
    extern /* Subroutine */ int dlatm4_(integer *, integer *, integer *, 
            integer *, integer *, doublereal *, doublereal *, doublereal *, 
            integer *, integer *, doublereal *, integer *), dorm2r_(char *, 
            char *, integer *, integer *, integer *, doublereal *, integer *, 
            doublereal *, doublereal *, integer *, doublereal *, integer *), dlabad_(doublereal *, doublereal *);
    logical ilabad;
    extern doublereal dlamch_(char *);
    extern /* Subroutine */ int dlarfg_(integer *, doublereal *, doublereal *, 
             integer *, doublereal *);
    extern doublereal dlarnd_(integer *, integer *);
    extern /* Subroutine */ int dlacpy_(char *, integer *, integer *, 
            doublereal *, integer *, doublereal *, integer *);
    doublereal safmin, safmax;
    integer ioldsd[4];
    extern integer ilaenv_(integer *, char *, char *, integer *, integer *, 
            integer *, integer *);
    extern /* Subroutine */ int alasvm_(char *, integer *, integer *, integer 
            *, integer *), dlaset_(char *, integer *, integer *, 
            doublereal *, doublereal *, doublereal *, integer *), 
            xerbla_(char *, integer *);
    doublereal ulpinv;
    integer lwkopt, mtypes, ntestt;

    /* Fortran I/O blocks */
    static cilist io___42 = { 0, 0, 0, fmt_9999, 0 };
    static cilist io___43 = { 0, 0, 0, fmt_9999, 0 };
    static cilist io___47 = { 0, 0, 0, fmt_9997, 0 };
    static cilist io___48 = { 0, 0, 0, fmt_9996, 0 };
    static cilist io___49 = { 0, 0, 0, fmt_9999, 0 };
    static cilist io___51 = { 0, 0, 0, fmt_9998, 0 };
    static cilist io___52 = { 0, 0, 0, fmt_9998, 0 };
    static cilist io___53 = { 0, 0, 0, fmt_9996, 0 };
    static cilist io___54 = { 0, 0, 0, fmt_9995, 0 };
    static cilist io___55 = { 0, 0, 0, fmt_9994, 0 };
    static cilist io___56 = { 0, 0, 0, fmt_9993, 0 };
    static cilist io___57 = { 0, 0, 0, fmt_9992, 0 };
    static cilist io___58 = { 0, 0, 0, fmt_9991, 0 };
    static cilist io___59 = { 0, 0, 0, fmt_9990, 0 };
    static cilist io___60 = { 0, 0, 0, fmt_9989, 0 };



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

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

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

/*  DDRVGG  checks the nonsymmetric generalized eigenvalue driver */
/*  routines. */
/*                                T          T        T */
/*  DGEGS factors A and B as Q S Z  and Q T Z , where   means */
/*  transpose, T is upper triangular, S is in generalized Schur form */
/*  (block upper triangular, with 1x1 and 2x2 blocks on the diagonal, */
/*  the 2x2 blocks corresponding to complex conjugate pairs of */
/*  generalized eigenvalues), and Q and Z are orthogonal.  It also */
/*  computes the generalized eigenvalues (alpha(1),beta(1)), ..., */
/*  (alpha(n),beta(n)), where alpha(j)=S(j,j) and beta(j)=P(j,j) -- */
/*  thus, w(j) = alpha(j)/beta(j) is a root of the generalized */
/*  eigenvalue problem */

/*      det( A - w(j) B ) = 0 */

/*  and m(j) = beta(j)/alpha(j) is a root of the essentially equivalent */
/*  problem */

/*      det( m(j) A - B ) = 0 */

/*  DGEGV computes the generalized eigenvalues (alpha(1),beta(1)), ..., */
/*  (alpha(n),beta(n)), the matrix L whose columns contain the */
/*  generalized left eigenvectors l, and the matrix R whose columns */
/*  contain the generalized right eigenvectors r for the pair (A,B). */

/*  When DDRVGG is called, a number of matrix "sizes" ("n's") and a */
/*  number of matrix "types" are specified.  For each size ("n") */
/*  and each type of matrix, one matrix will be generated and used */
/*  to test the nonsymmetric eigenroutines.  For each matrix, 7 */
/*  tests will be performed and compared with the threshhold THRESH: */

/*  Results from DGEGS: */

/*                   T */
/*  (1)   | A - Q S Z  | / ( |A| n ulp ) */

/*                   T */
/*  (2)   | B - Q T Z  | / ( |B| n ulp ) */

/*                T */
/*  (3)   | I - QQ  | / ( n ulp ) */

/*                T */
/*  (4)   | I - ZZ  | / ( n ulp ) */

/*  (5)   maximum over j of D(j)  where: */

/*  if alpha(j) is real: */
/*                      |alpha(j) - S(j,j)|        |beta(j) - T(j,j)| */
/*            D(j) = ------------------------ + ----------------------- */
/*                   max(|alpha(j)|,|S(j,j)|)   max(|beta(j)|,|T(j,j)|) */

/*  if alpha(j) is complex: */
/*                                  | det( s S - w T ) | */
/*            D(j) = --------------------------------------------------- */
/*                   ulp max( s norm(S), |w| norm(T) )*norm( s S - w T ) */

/*            and S and T are here the 2 x 2 diagonal blocks of S and T */
/*            corresponding to the j-th eigenvalue. */

/*  Results from DGEGV: */

/*  (6)   max over all left eigenvalue/-vector pairs (beta/alpha,l) of */

/*     | l**H * (beta A - alpha B) | / ( ulp max( |beta A|, |alpha B| ) ) */

/*        where l**H is the conjugate tranpose of l. */

/*  (7)   max over all right eigenvalue/-vector pairs (beta/alpha,r) of */

/*        | (beta A - alpha B) r | / ( ulp max( |beta A|, |alpha B| ) ) */

/*  Test Matrices */
/*  ---- -------- */

/*  The sizes of the test matrices are specified by an array */
/*  NN(1:NSIZES); the value of each element NN(j) specifies one size. */
/*  The "types" are specified by a logical array DOTYPE( 1:NTYPES ); if */
/*  DOTYPE(j) is .TRUE., then matrix type "j" will be generated. */
/*  Currently, the list of possible types is: */

/*  (1)  ( 0, 0 )         (a pair of zero matrices) */

/*  (2)  ( I, 0 )         (an identity and a zero matrix) */

/*  (3)  ( 0, I )         (an identity and a zero matrix) */

/*  (4)  ( I, I )         (a pair of identity matrices) */

/*          t   t */
/*  (5)  ( J , J  )       (a pair of transposed Jordan blocks) */

/*                                      t                ( I   0  ) */
/*  (6)  ( X, Y )         where  X = ( J   0  )  and Y = (      t ) */
/*                                   ( 0   I  )          ( 0   J  ) */
/*                        and I is a k x k identity and J a (k+1)x(k+1) */
/*                        Jordan block; k=(N-1)/2 */

/*  (7)  ( D, I )         where D is diag( 0, 1,..., N-1 ) (a diagonal */
/*                        matrix with those diagonal entries.) */
/*  (8)  ( I, D ) */

/*  (9)  ( big*D, small*I ) where "big" is near overflow and small=1/big */

/*  (10) ( small*D, big*I ) */

/*  (11) ( big*I, small*D ) */

/*  (12) ( small*I, big*D ) */

/*  (13) ( big*D, big*I ) */

/*  (14) ( small*D, small*I ) */

/*  (15) ( D1, D2 )        where D1 is diag( 0, 0, 1, ..., N-3, 0 ) and */
/*                         D2 is diag( 0, N-3, N-4,..., 1, 0, 0 ) */
/*            t   t */
/*  (16) Q ( J , J ) Z     where Q and Z are random orthogonal matrices. */

/*  (17) Q ( T1, T2 ) Z    where T1 and T2 are upper triangular matrices */
/*                         with random O(1) entries above the diagonal */
/*                         and diagonal entries diag(T1) = */
/*                         ( 0, 0, 1, ..., N-3, 0 ) and diag(T2) = */
/*                         ( 0, N-3, N-4,..., 1, 0, 0 ) */

/*  (18) Q ( T1, T2 ) Z    diag(T1) = ( 0, 0, 1, 1, s, ..., s, 0 ) */
/*                         diag(T2) = ( 0, 1, 0, 1,..., 1, 0 ) */
/*                         s = machine precision. */

/*  (19) Q ( T1, T2 ) Z    diag(T1)=( 0,0,1,1, 1-d, ..., 1-(N-5)*d=s, 0 ) */
/*                         diag(T2) = ( 0, 1, 0, 1, ..., 1, 0 ) */

/*                                                         N-5 */
/*  (20) Q ( T1, T2 ) Z    diag(T1)=( 0, 0, 1, 1, a, ..., a   =s, 0 ) */
/*                         diag(T2) = ( 0, 1, 0, 1, ..., 1, 0, 0 ) */

/*  (21) Q ( T1, T2 ) Z    diag(T1)=( 0, 0, 1, r1, r2, ..., r(N-4), 0 ) */
/*                         diag(T2) = ( 0, 1, 0, 1, ..., 1, 0, 0 ) */
/*                         where r1,..., r(N-4) are random. */

/*  (22) Q ( big*T1, small*T2 ) Z    diag(T1) = ( 0, 0, 1, ..., N-3, 0 ) */
/*                                   diag(T2) = ( 0, 1, ..., 1, 0, 0 ) */

/*  (23) Q ( small*T1, big*T2 ) Z    diag(T1) = ( 0, 0, 1, ..., N-3, 0 ) */
/*                                   diag(T2) = ( 0, 1, ..., 1, 0, 0 ) */

/*  (24) Q ( small*T1, small*T2 ) Z  diag(T1) = ( 0, 0, 1, ..., N-3, 0 ) */
/*                                   diag(T2) = ( 0, 1, ..., 1, 0, 0 ) */

/*  (25) Q ( big*T1, big*T2 ) Z      diag(T1) = ( 0, 0, 1, ..., N-3, 0 ) */
/*                                   diag(T2) = ( 0, 1, ..., 1, 0, 0 ) */

/*  (26) Q ( T1, T2 ) Z     where T1 and T2 are random upper-triangular */
/*                          matrices. */

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

/*  NSIZES  (input) INTEGER */
/*          The number of sizes of matrices to use.  If it is zero, */
/*          DDRVGG does nothing.  It must be at least zero. */

/*  NN      (input) INTEGER array, dimension (NSIZES) */
/*          An array containing the sizes to be used for the matrices. */
/*          Zero values will be skipped.  The values must be at least */
/*          zero. */

/*  NTYPES  (input) INTEGER */
/*          The number of elements in DOTYPE.   If it is zero, DDRVGG */
/*          does nothing.  It must be at least zero.  If it is MAXTYP+1 */
/*          and NSIZES is 1, then an additional type, MAXTYP+1 is */
/*          defined, which is to use whatever matrix is in A.  This */
/*          is only useful if DOTYPE(1:MAXTYP) is .FALSE. and */
/*          DOTYPE(MAXTYP+1) is .TRUE. . */

/*  DOTYPE  (input) LOGICAL array, dimension (NTYPES) */
/*          If DOTYPE(j) is .TRUE., then for each size in NN a */
/*          matrix of that size and of type j will be generated. */
/*          If NTYPES is smaller than the maximum number of types */
/*          defined (PARAMETER MAXTYP), then types NTYPES+1 through */
/*          MAXTYP will not be generated.  If NTYPES is larger */
/*          than MAXTYP, DOTYPE(MAXTYP+1) through DOTYPE(NTYPES) */
/*          will be ignored. */

/*  ISEED   (input/output) INTEGER array, dimension (4) */
/*          On entry ISEED specifies the seed of the random number */
/*          generator. The array elements should be between 0 and 4095; */
/*          if not they will be reduced mod 4096.  Also, ISEED(4) must */
/*          be odd.  The random number generator uses a linear */
/*          congruential sequence limited to small integers, and so */
/*          should produce machine independent random numbers. The */
/*          values of ISEED are changed on exit, and can be used in the */
/*          next call to DDRVGG to continue the same random number */
/*          sequence. */

/*  THRESH  (input) DOUBLE PRECISION */
/*          A test will count as "failed" if the "error", computed as */
/*          described above, exceeds THRESH.  Note that the error is */
/*          scaled to be O(1), so THRESH should be a reasonably small */
/*          multiple of 1, e.g., 10 or 100.  In particular, it should */
/*          not depend on the precision (single vs. double) or the size */
/*          of the matrix.  It must be at least zero. */

/*  THRSHN  (input) DOUBLE PRECISION */
/*          Threshhold for reporting eigenvector normalization error. */
/*          If the normalization of any eigenvector differs from 1 by */
/*          more than THRSHN*ulp, then a special error message will be */
/*          printed.  (This is handled separately from the other tests, */
/*          since only a compiler or programming error should cause an */
/*          error message, at least if THRSHN is at least 5--10.) */

/*  NOUNIT  (input) INTEGER */
/*          The FORTRAN unit number for printing out error messages */
/*          (e.g., if a routine returns IINFO not equal to 0.) */

/*  A       (input/workspace) DOUBLE PRECISION array, dimension */
/*                            (LDA, max(NN)) */
/*          Used to hold the original A matrix.  Used as input only */
/*          if NTYPES=MAXTYP+1, DOTYPE(1:MAXTYP)=.FALSE., and */
/*          DOTYPE(MAXTYP+1)=.TRUE. */

/*  LDA     (input) INTEGER */
/*          The leading dimension of A, B, S, T, S2, and T2. */
/*          It must be at least 1 and at least max( NN ). */

/*  B       (input/workspace) DOUBLE PRECISION array, dimension */
/*                            (LDA, max(NN)) */
/*          Used to hold the original B matrix.  Used as input only */
/*          if NTYPES=MAXTYP+1, DOTYPE(1:MAXTYP)=.FALSE., and */
/*          DOTYPE(MAXTYP+1)=.TRUE. */

/*  S       (workspace) DOUBLE PRECISION array, dimension (LDA, max(NN)) */
/*          The Schur form matrix computed from A by DGEGS.  On exit, S */
/*          contains the Schur form matrix corresponding to the matrix */
/*          in A. */

/*  T       (workspace) DOUBLE PRECISION array, dimension (LDA, max(NN)) */
/*          The upper triangular matrix computed from B by DGEGS. */

/*  S2      (workspace) DOUBLE PRECISION array, dimension (LDA, max(NN)) */
/*          The matrix computed from A by DGEGV.  This will be the */
/*          Schur form of some matrix related to A, but will not, in */
/*          general, be the same as S. */

/*  T2      (workspace) DOUBLE PRECISION array, dimension (LDA, max(NN)) */
/*          The matrix computed from B by DGEGV.  This will be the */
/*          Schur form of some matrix related to B, but will not, in */
/*          general, be the same as T. */

/*  Q       (workspace) DOUBLE PRECISION array, dimension (LDQ, max(NN)) */
/*          The (left) orthogonal matrix computed by DGEGS. */

/*  LDQ     (input) INTEGER */
/*          The leading dimension of Q, Z, VL, and VR.  It must */
/*          be at least 1 and at least max( NN ). */

/*  Z       (workspace) DOUBLE PRECISION array of */
/*                             dimension( LDQ, max(NN) ) */
/*          The (right) orthogonal matrix computed by DGEGS. */

/*  ALPHR1  (workspace) DOUBLE PRECISION array, dimension (max(NN)) */
/*  ALPHI1  (workspace) DOUBLE PRECISION array, dimension (max(NN)) */
/*  BETA1   (workspace) DOUBLE PRECISION array, dimension (max(NN)) */

/*          The generalized eigenvalues of (A,B) computed by DGEGS. */
/*          ( ALPHR1(k)+ALPHI1(k)*i ) / BETA1(k) is the k-th */
/*          generalized eigenvalue of the matrices in A and B. */

/*  ALPHR2  (workspace) DOUBLE PRECISION array, dimension (max(NN)) */
/*  ALPHI2  (workspace) DOUBLE PRECISION array, dimension (max(NN)) */
/*  BETA2   (workspace) DOUBLE PRECISION array, dimension (max(NN)) */

/*          The generalized eigenvalues of (A,B) computed by DGEGV. */
/*          ( ALPHR2(k)+ALPHI2(k)*i ) / BETA2(k) is the k-th */
/*          generalized eigenvalue of the matrices in A and B. */

/*  VL      (workspace) DOUBLE PRECISION array, dimension (LDQ, max(NN)) */
/*          The (block lower triangular) left eigenvector matrix for */
/*          the matrices in A and B.  (See DTGEVC for the format.) */

/*  VR      (workspace) DOUBLE PRECISION array, dimension (LDQ, max(NN)) */
/*          The (block upper triangular) right eigenvector matrix for */
/*          the matrices in A and B.  (See DTGEVC for the format.) */

/*  WORK    (workspace) DOUBLE PRECISION array, dimension (LWORK) */

/*  LWORK   (input) INTEGER */
/*          The number of entries in WORK.  This must be at least */
/*          2*N + MAX( 6*N, N*(NB+1), (k+1)*(2*k+N+1) ), where */
/*          "k" is the sum of the blocksize and number-of-shifts for */
/*          DHGEQZ, and NB is the greatest of the blocksizes for */
/*          DGEQRF, DORMQR, and DORGQR.  (The blocksizes and the */
/*          number-of-shifts are retrieved through calls to ILAENV.) */

/*  RESULT  (output) DOUBLE PRECISION array, dimension (15) */
/*          The values computed by the tests described above. */
/*          The values are currently limited to 1/ulp, to avoid */
/*          overflow. */

/*  INFO    (output) INTEGER */
/*          = 0:  successful exit */
/*          < 0:  if INFO = -i, the i-th argument had an illegal value. */
/*          > 0:  A routine returned an error code.  INFO is the */
/*                absolute value of the INFO value returned. */

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

/*     .. Parameters .. */
/*     .. */
/*     .. Local Scalars .. */
/*     .. */
/*     .. Local Arrays .. */
/*     .. */
/*     .. External Functions .. */
/*     .. */
/*     .. External Subroutines .. */
/*     .. */
/*     .. Intrinsic Functions .. */
/*     .. */
/*     .. Data statements .. */
    /* Parameter adjustments */
    --nn;
    --dotype;
    --iseed;
    t2_dim1 = *lda;
    t2_offset = 1 + t2_dim1;
    t2 -= t2_offset;
    s2_dim1 = *lda;
    s2_offset = 1 + s2_dim1;
    s2 -= s2_offset;
    t_dim1 = *lda;
    t_offset = 1 + t_dim1;
    t -= t_offset;
    s_dim1 = *lda;
    s_offset = 1 + s_dim1;
    s -= s_offset;
    b_dim1 = *lda;
    b_offset = 1 + b_dim1;
    b -= b_offset;
    a_dim1 = *lda;
    a_offset = 1 + a_dim1;
    a -= a_offset;
    vr_dim1 = *ldq;
    vr_offset = 1 + vr_dim1;
    vr -= vr_offset;
    vl_dim1 = *ldq;
    vl_offset = 1 + vl_dim1;
    vl -= vl_offset;
    z_dim1 = *ldq;
    z_offset = 1 + z_dim1;
    z__ -= z_offset;
    q_dim1 = *ldq;
    q_offset = 1 + q_dim1;
    q -= q_offset;
    --alphr1;
    --alphi1;
    --beta1;
    --alphr2;
    --alphi2;
    --beta2;
    --work;
    --result;

    /* Function Body */
/*     .. */
/*     .. Executable Statements .. */

/*     Check for errors */

    *info = 0;

    badnn = FALSE_;
    nmax = 1;
    i__1 = *nsizes;
    for (j = 1; j <= i__1; ++j) {
/* Computing MAX */
        i__2 = nmax, i__3 = nn[j];
        nmax = max(i__2,i__3);
        if (nn[j] < 0) {
            badnn = TRUE_;
        }
/* L10: */
    }

/*     Maximum blocksize and shift -- we assume that blocksize and number */
/*     of shifts are monotone increasing functions of N. */

/* Computing MAX */
    i__1 = 1, i__2 = ilaenv_(&c__1, "DGEQRF", " ", &nmax, &nmax, &c_n1, &c_n1), i__1 = max(i__1,i__2), i__2 = ilaenv_(&
            c__1, "DORMQR", "LT", &nmax, &nmax, &nmax, &c_n1), i__1 = max(i__1,i__2), i__2 = ilaenv_(&c__1, "DORGQR", 
            " ", &nmax, &nmax, &nmax, &c_n1);
    nb = max(i__1,i__2);
    nbz = ilaenv_(&c__1, "DHGEQZ", "SII", &nmax, &c__1, &nmax, &c__0);
    ns = ilaenv_(&c__4, "DHGEQZ", "SII", &nmax, &c__1, &nmax, &c__0);
    i1 = nbz + ns;
/* Computing MAX */
    i__1 = nmax * 6, i__2 = nmax * (nb + 1), i__1 = max(i__1,i__2), i__2 = ((
            i1 << 1) + nmax + 1) * (i1 + 1);
    lwkopt = (nmax << 1) + max(i__1,i__2);

/*     Check for errors */

    if (*nsizes < 0) {
        *info = -1;
    } else if (badnn) {
        *info = -2;
    } else if (*ntypes < 0) {
        *info = -3;
    } else if (*thresh < 0.) {
        *info = -6;
    } else if (*lda <= 1 || *lda < nmax) {
        *info = -10;
    } else if (*ldq <= 1 || *ldq < nmax) {
        *info = -19;
    } else if (lwkopt > *lwork) {
        *info = -30;
    }

    if (*info != 0) {
        i__1 = -(*info);
        xerbla_("DDRVGG", &i__1);
        return 0;
    }

/*     Quick return if possible */

    if (*nsizes == 0 || *ntypes == 0) {
        return 0;
    }

    safmin = dlamch_("Safe minimum");
    ulp = dlamch_("Epsilon") * dlamch_("Base");
    safmin /= ulp;
    safmax = 1. / safmin;
    dlabad_(&safmin, &safmax);
    ulpinv = 1. / ulp;

/*     The values RMAGN(2:3) depend on N, see below. */

    rmagn[0] = 0.;
    rmagn[1] = 1.;

/*     Loop over sizes, types */

    ntestt = 0;
    nerrs = 0;
    nmats = 0;

    i__1 = *nsizes;
    for (jsize = 1; jsize <= i__1; ++jsize) {
        n = nn[jsize];
        n1 = max(1,n);
        rmagn[2] = safmax * ulp / (doublereal) n1;
        rmagn[3] = safmin * ulpinv * n1;

        if (*nsizes != 1) {
            mtypes = min(26,*ntypes);
        } else {
            mtypes = min(27,*ntypes);
        }

        i__2 = mtypes;
        for (jtype = 1; jtype <= i__2; ++jtype) {
            if (! dotype[jtype]) {
                goto L160;
            }
            ++nmats;
            ntest = 0;

/*           Save ISEED in case of an error. */

            for (j = 1; j <= 4; ++j) {
                ioldsd[j - 1] = iseed[j];
/* L20: */
            }

/*           Initialize RESULT */

            for (j = 1; j <= 15; ++j) {
                result[j] = 0.;
/* L30: */
            }

/*           Compute A and B */

/*           Description of control parameters: */

/*           KZLASS: =1 means w/o rotation, =2 means w/ rotation, */
/*                   =3 means random. */
/*           KATYPE: the "type" to be passed to DLATM4 for computing A. */
/*           KAZERO: the pattern of zeros on the diagonal for A: */
/*                   =1: ( xxx ), =2: (0, xxx ) =3: ( 0, 0, xxx, 0 ), */
/*                   =4: ( 0, xxx, 0, 0 ), =5: ( 0, 0, 1, xxx, 0 ), */
/*                   =6: ( 0, 1, 0, xxx, 0 ).  (xxx means a string of */
/*                   non-zero entries.) */
/*           KAMAGN: the magnitude of the matrix: =0: zero, =1: O(1), */
/*                   =2: large, =3: small. */
/*           IASIGN: 1 if the diagonal elements of A are to be */
/*                   multiplied by a random magnitude 1 number, =2 if */
/*                   randomly chosen diagonal blocks are to be rotated */
/*                   to form 2x2 blocks. */
/*           KBTYPE, KBZERO, KBMAGN, IBSIGN: the same, but for B. */
/*           KTRIAN: =0: don't fill in the upper triangle, =1: do. */
/*           KZ1, KZ2, KADD: used to implement KAZERO and KBZERO. */
/*           RMAGN: used to implement KAMAGN and KBMAGN. */

            if (mtypes > 26) {
                goto L110;
            }
            iinfo = 0;
            if (kclass[jtype - 1] < 3) {

/*              Generate A (w/o rotation) */

                if ((i__3 = katype[jtype - 1], abs(i__3)) == 3) {
                    in = ((n - 1) / 2 << 1) + 1;
                    if (in != n) {
                        dlaset_("Full", &n, &n, &c_b36, &c_b36, &a[a_offset], 
                                lda);
                    }
                } else {
                    in = n;
                }
                dlatm4_(&katype[jtype - 1], &in, &kz1[kazero[jtype - 1] - 1], 
                        &kz2[kazero[jtype - 1] - 1], &iasign[jtype - 1], &
                        rmagn[kamagn[jtype - 1]], &ulp, &rmagn[ktrian[jtype - 
                        1] * kamagn[jtype - 1]], &c__2, &iseed[1], &a[
                        a_offset], lda);
                iadd = kadd[kazero[jtype - 1] - 1];
                if (iadd > 0 && iadd <= n) {
                    a[iadd + iadd * a_dim1] = 1.;
                }

/*              Generate B (w/o rotation) */

                if ((i__3 = kbtype[jtype - 1], abs(i__3)) == 3) {
                    in = ((n - 1) / 2 << 1) + 1;
                    if (in != n) {
                        dlaset_("Full", &n, &n, &c_b36, &c_b36, &b[b_offset], 
                                lda);
                    }
                } else {
                    in = n;
                }
                dlatm4_(&kbtype[jtype - 1], &in, &kz1[kbzero[jtype - 1] - 1], 
                        &kz2[kbzero[jtype - 1] - 1], &ibsign[jtype - 1], &
                        rmagn[kbmagn[jtype - 1]], &c_b42, &rmagn[ktrian[jtype 
                        - 1] * kbmagn[jtype - 1]], &c__2, &iseed[1], &b[
                        b_offset], lda);
                iadd = kadd[kbzero[jtype - 1] - 1];
                if (iadd != 0 && iadd <= n) {
                    b[iadd + iadd * b_dim1] = 1.;
                }

                if (kclass[jtype - 1] == 2 && n > 0) {

/*                 Include rotations */

/*                 Generate Q, Z as Householder transformations times */
/*                 a diagonal matrix. */

                    i__3 = n - 1;
                    for (jc = 1; jc <= i__3; ++jc) {
                        i__4 = n;
                        for (jr = jc; jr <= i__4; ++jr) {
                            q[jr + jc * q_dim1] = dlarnd_(&c__3, &iseed[1]);
                            z__[jr + jc * z_dim1] = dlarnd_(&c__3, &iseed[1]);
/* L40: */
                        }
                        i__4 = n + 1 - jc;
                        dlarfg_(&i__4, &q[jc + jc * q_dim1], &q[jc + 1 + jc * 
                                q_dim1], &c__1, &work[jc]);
                        work[(n << 1) + jc] = d_sign(&c_b42, &q[jc + jc * 
                                q_dim1]);
                        q[jc + jc * q_dim1] = 1.;
                        i__4 = n + 1 - jc;
                        dlarfg_(&i__4, &z__[jc + jc * z_dim1], &z__[jc + 1 + 
                                jc * z_dim1], &c__1, &work[n + jc]);
                        work[n * 3 + jc] = d_sign(&c_b42, &z__[jc + jc * 
                                z_dim1]);
                        z__[jc + jc * z_dim1] = 1.;
/* L50: */
                    }
                    q[n + n * q_dim1] = 1.;
                    work[n] = 0.;
                    d__1 = dlarnd_(&c__2, &iseed[1]);
                    work[n * 3] = d_sign(&c_b42, &d__1);
                    z__[n + n * z_dim1] = 1.;
                    work[n * 2] = 0.;
                    d__1 = dlarnd_(&c__2, &iseed[1]);
                    work[n * 4] = d_sign(&c_b42, &d__1);

/*                 Apply the diagonal matrices */

                    i__3 = n;
                    for (jc = 1; jc <= i__3; ++jc) {
                        i__4 = n;
                        for (jr = 1; jr <= i__4; ++jr) {
                            a[jr + jc * a_dim1] = work[(n << 1) + jr] * work[
                                    n * 3 + jc] * a[jr + jc * a_dim1];
                            b[jr + jc * b_dim1] = work[(n << 1) + jr] * work[
                                    n * 3 + jc] * b[jr + jc * b_dim1];
/* L60: */
                        }
/* L70: */
                    }
                    i__3 = n - 1;
                    dorm2r_("L", "N", &n, &n, &i__3, &q[q_offset], ldq, &work[
                            1], &a[a_offset], lda, &work[(n << 1) + 1], &
                            iinfo);
                    if (iinfo != 0) {
                        goto L100;
                    }
                    i__3 = n - 1;
                    dorm2r_("R", "T", &n, &n, &i__3, &z__[z_offset], ldq, &
                            work[n + 1], &a[a_offset], lda, &work[(n << 1) + 
                            1], &iinfo);
                    if (iinfo != 0) {
                        goto L100;
                    }
                    i__3 = n - 1;
                    dorm2r_("L", "N", &n, &n, &i__3, &q[q_offset], ldq, &work[
                            1], &b[b_offset], lda, &work[(n << 1) + 1], &
                            iinfo);
                    if (iinfo != 0) {
                        goto L100;
                    }
                    i__3 = n - 1;
                    dorm2r_("R", "T", &n, &n, &i__3, &z__[z_offset], ldq, &
                            work[n + 1], &b[b_offset], lda, &work[(n << 1) + 
                            1], &iinfo);
                    if (iinfo != 0) {
                        goto L100;
                    }
                }
            } else {

/*              Random matrices */

                i__3 = n;
                for (jc = 1; jc <= i__3; ++jc) {
                    i__4 = n;
                    for (jr = 1; jr <= i__4; ++jr) {
                        a[jr + jc * a_dim1] = rmagn[kamagn[jtype - 1]] * 
                                dlarnd_(&c__2, &iseed[1]);
                        b[jr + jc * b_dim1] = rmagn[kbmagn[jtype - 1]] * 
                                dlarnd_(&c__2, &iseed[1]);
/* L80: */
                    }
/* L90: */
                }
            }

L100:

            if (iinfo != 0) {
                io___42.ciunit = *nounit;
                s_wsfe(&io___42);
                do_fio(&c__1, "Generator", (ftnlen)9);
                do_fio(&c__1, (char *)&iinfo, (ftnlen)sizeof(integer));
                do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer));
                do_fio(&c__1, (char *)&jtype, (ftnlen)sizeof(integer));
                do_fio(&c__4, (char *)&ioldsd[0], (ftnlen)sizeof(integer));
                e_wsfe();
                *info = abs(iinfo);
                return 0;
            }

L110:

/*           Call DGEGS to compute H, T, Q, Z, alpha, and beta. */

            dlacpy_(" ", &n, &n, &a[a_offset], lda, &s[s_offset], lda);
            dlacpy_(" ", &n, &n, &b[b_offset], lda, &t[t_offset], lda);
            ntest = 1;
            result[1] = ulpinv;

            dgegs_("V", "V", &n, &s[s_offset], lda, &t[t_offset], lda, &
                    alphr1[1], &alphi1[1], &beta1[1], &q[q_offset], ldq, &z__[
                    z_offset], ldq, &work[1], lwork, &iinfo);
            if (iinfo != 0) {
                io___43.ciunit = *nounit;
                s_wsfe(&io___43);
                do_fio(&c__1, "DGEGS", (ftnlen)5);
                do_fio(&c__1, (char *)&iinfo, (ftnlen)sizeof(integer));
                do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer));
                do_fio(&c__1, (char *)&jtype, (ftnlen)sizeof(integer));
                do_fio(&c__4, (char *)&ioldsd[0], (ftnlen)sizeof(integer));
                e_wsfe();
                *info = abs(iinfo);
                goto L140;
            }

            ntest = 4;

/*           Do tests 1--4 */

            dget51_(&c__1, &n, &a[a_offset], lda, &s[s_offset], lda, &q[
                    q_offset], ldq, &z__[z_offset], ldq, &work[1], &result[1])
                    ;
            dget51_(&c__1, &n, &b[b_offset], lda, &t[t_offset], lda, &q[
                    q_offset], ldq, &z__[z_offset], ldq, &work[1], &result[2])
                    ;
            dget51_(&c__3, &n, &b[b_offset], lda, &t[t_offset], lda, &q[
                    q_offset], ldq, &q[q_offset], ldq, &work[1], &result[3]);
            dget51_(&c__3, &n, &b[b_offset], lda, &t[t_offset], lda, &z__[
                    z_offset], ldq, &z__[z_offset], ldq, &work[1], &result[4])
                    ;

/*           Do test 5: compare eigenvalues with diagonals. */
/*           Also check Schur form of A. */

            temp1 = 0.;

            i__3 = n;
            for (j = 1; j <= i__3; ++j) {
                ilabad = FALSE_;
                if (alphi1[j] == 0.) {
/* Computing MAX */
                    d__7 = safmin, d__8 = (d__2 = alphr1[j], abs(d__2)), d__7 
                            = max(d__7,d__8), d__8 = (d__3 = s[j + j * s_dim1]
                            , abs(d__3));
/* Computing MAX */
                    d__9 = safmin, d__10 = (d__5 = beta1[j], abs(d__5)), d__9 
                            = max(d__9,d__10), d__10 = (d__6 = t[j + j * 
                            t_dim1], abs(d__6));
                    temp2 = ((d__1 = alphr1[j] - s[j + j * s_dim1], abs(d__1))
                             / max(d__7,d__8) + (d__4 = beta1[j] - t[j + j * 
                            t_dim1], abs(d__4)) / max(d__9,d__10)) / ulp;
                    if (j < n) {
                        if (s[j + 1 + j * s_dim1] != 0.) {
                            ilabad = TRUE_;
                        }
                    }
                    if (j > 1) {
                        if (s[j + (j - 1) * s_dim1] != 0.) {
                            ilabad = TRUE_;
                        }
                    }
                } else {
                    if (alphi1[j] > 0.) {
                        i1 = j;
                    } else {
                        i1 = j - 1;
                    }
                    if (i1 <= 0 || i1 >= n) {
                        ilabad = TRUE_;
                    } else if (i1 < n - 1) {
                        if (s[i1 + 2 + (i1 + 1) * s_dim1] != 0.) {
                            ilabad = TRUE_;
                        }
                    } else if (i1 > 1) {
                        if (s[i1 + (i1 - 1) * s_dim1] != 0.) {
                            ilabad = TRUE_;
                        }
                    }
                    if (! ilabad) {
                        dget53_(&s[i1 + i1 * s_dim1], lda, &t[i1 + i1 * 
                                t_dim1], lda, &beta1[j], &alphr1[j], &alphi1[
                                j], &temp2, &iinfo);
                        if (iinfo >= 3) {
                            io___47.ciunit = *nounit;
                            s_wsfe(&io___47);
                            do_fio(&c__1, (char *)&iinfo, (ftnlen)sizeof(
                                    integer));
                            do_fio(&c__1, (char *)&j, (ftnlen)sizeof(integer))
                                    ;
                            do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer))
                                    ;
                            do_fio(&c__1, (char *)&jtype, (ftnlen)sizeof(
                                    integer));
                            do_fio(&c__4, (char *)&ioldsd[0], (ftnlen)sizeof(
                                    integer));
                            e_wsfe();
                            *info = abs(iinfo);
                        }
                    } else {
                        temp2 = ulpinv;
                    }
                }
                temp1 = max(temp1,temp2);
                if (ilabad) {
                    io___48.ciunit = *nounit;
                    s_wsfe(&io___48);
                    do_fio(&c__1, (char *)&j, (ftnlen)sizeof(integer));
                    do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer));
                    do_fio(&c__1, (char *)&jtype, (ftnlen)sizeof(integer));
                    do_fio(&c__4, (char *)&ioldsd[0], (ftnlen)sizeof(integer))
                            ;
                    e_wsfe();
                }
/* L120: */
            }
            result[5] = temp1;

/*           Call DGEGV to compute S2, T2, VL, and VR, do tests. */

/*           Eigenvalues and Eigenvectors */

            dlacpy_(" ", &n, &n, &a[a_offset], lda, &s2[s2_offset], lda);
            dlacpy_(" ", &n, &n, &b[b_offset], lda, &t2[t2_offset], lda);
            ntest = 6;
            result[6] = ulpinv;

            dgegv_("V", "V", &n, &s2[s2_offset], lda, &t2[t2_offset], lda, &
                    alphr2[1], &alphi2[1], &beta2[1], &vl[vl_offset], ldq, &
                    vr[vr_offset], ldq, &work[1], lwork, &iinfo);
            if (iinfo != 0) {
                io___49.ciunit = *nounit;
                s_wsfe(&io___49);
                do_fio(&c__1, "DGEGV", (ftnlen)5);
                do_fio(&c__1, (char *)&iinfo, (ftnlen)sizeof(integer));
                do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer));
                do_fio(&c__1, (char *)&jtype, (ftnlen)sizeof(integer));
                do_fio(&c__4, (char *)&ioldsd[0], (ftnlen)sizeof(integer));
                e_wsfe();
                *info = abs(iinfo);
                goto L140;
            }

            ntest = 7;

/*           Do Tests 6 and 7 */

            dget52_(&c_true, &n, &a[a_offset], lda, &b[b_offset], lda, &vl[
                    vl_offset], ldq, &alphr2[1], &alphi2[1], &beta2[1], &work[
                    1], dumma);
            result[6] = dumma[0];
            if (dumma[1] > *thrshn) {
                io___51.ciunit = *nounit;
                s_wsfe(&io___51);
                do_fio(&c__1, "Left", (ftnlen)4);
                do_fio(&c__1, "DGEGV", (ftnlen)5);
                do_fio(&c__1, (char *)&dumma[1], (ftnlen)sizeof(doublereal));
                do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer));
                do_fio(&c__1, (char *)&jtype, (ftnlen)sizeof(integer));
                do_fio(&c__4, (char *)&ioldsd[0], (ftnlen)sizeof(integer));
                e_wsfe();
            }

            dget52_(&c_false, &n, &a[a_offset], lda, &b[b_offset], lda, &vr[
                    vr_offset], ldq, &alphr2[1], &alphi2[1], &beta2[1], &work[
                    1], dumma);
            result[7] = dumma[0];
            if (dumma[1] > *thresh) {
                io___52.ciunit = *nounit;
                s_wsfe(&io___52);
                do_fio(&c__1, "Right", (ftnlen)5);
                do_fio(&c__1, "DGEGV", (ftnlen)5);
                do_fio(&c__1, (char *)&dumma[1], (ftnlen)sizeof(doublereal));
                do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer));
                do_fio(&c__1, (char *)&jtype, (ftnlen)sizeof(integer));
                do_fio(&c__4, (char *)&ioldsd[0], (ftnlen)sizeof(integer));
                e_wsfe();
            }

/*           Check form of Complex eigenvalues. */

            i__3 = n;
            for (j = 1; j <= i__3; ++j) {
                ilabad = FALSE_;
                if (alphi2[j] > 0.) {
                    if (j == n) {
                        ilabad = TRUE_;
                    } else if (alphi2[j + 1] >= 0.) {
                        ilabad = TRUE_;
                    }
                } else if (alphi2[j] < 0.) {
                    if (j == 1) {
                        ilabad = TRUE_;
                    } else if (alphi2[j - 1] <= 0.) {
                        ilabad = TRUE_;
                    }
                }
                if (ilabad) {
                    io___53.ciunit = *nounit;
                    s_wsfe(&io___53);
                    do_fio(&c__1, (char *)&j, (ftnlen)sizeof(integer));
                    do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer));
                    do_fio(&c__1, (char *)&jtype, (ftnlen)sizeof(integer));
                    do_fio(&c__4, (char *)&ioldsd[0], (ftnlen)sizeof(integer))
                            ;
                    e_wsfe();
                }
/* L130: */
            }

/*           End of Loop -- Check for RESULT(j) > THRESH */

L140:

            ntestt += ntest;

/*           Print out tests which fail. */

            i__3 = ntest;
            for (jr = 1; jr <= i__3; ++jr) {
                if (result[jr] >= *thresh) {

/*                 If this is the first test to fail, */
/*                 print a header to the data file. */

                    if (nerrs == 0) {
                        io___54.ciunit = *nounit;
                        s_wsfe(&io___54);
                        do_fio(&c__1, "DGG", (ftnlen)3);
                        e_wsfe();

/*                    Matrix types */

                        io___55.ciunit = *nounit;
                        s_wsfe(&io___55);
                        e_wsfe();
                        io___56.ciunit = *nounit;
                        s_wsfe(&io___56);
                        e_wsfe();
                        io___57.ciunit = *nounit;
                        s_wsfe(&io___57);
                        do_fio(&c__1, "Orthogonal", (ftnlen)10);
                        e_wsfe();

/*                    Tests performed */

                        io___58.ciunit = *nounit;
                        s_wsfe(&io___58);
                        do_fio(&c__1, "orthogonal", (ftnlen)10);
                        do_fio(&c__1, "'", (ftnlen)1);
                        do_fio(&c__1, "transpose", (ftnlen)9);
                        for (j = 1; j <= 5; ++j) {
                            do_fio(&c__1, "'", (ftnlen)1);
                        }
                        e_wsfe();

                    }
                    ++nerrs;
                    if (result[jr] < 1e4) {
                        io___59.ciunit = *nounit;
                        s_wsfe(&io___59);
                        do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer));
                        do_fio(&c__1, (char *)&jtype, (ftnlen)sizeof(integer))
                                ;
                        do_fio(&c__4, (char *)&ioldsd[0], (ftnlen)sizeof(
                                integer));
                        do_fio(&c__1, (char *)&jr, (ftnlen)sizeof(integer));
                        do_fio(&c__1, (char *)&result[jr], (ftnlen)sizeof(
                                doublereal));
                        e_wsfe();
                    } else {
                        io___60.ciunit = *nounit;
                        s_wsfe(&io___60);
                        do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer));
                        do_fio(&c__1, (char *)&jtype, (ftnlen)sizeof(integer))
                                ;
                        do_fio(&c__4, (char *)&ioldsd[0], (ftnlen)sizeof(
                                integer));
                        do_fio(&c__1, (char *)&jr, (ftnlen)sizeof(integer));
                        do_fio(&c__1, (char *)&result[jr], (ftnlen)sizeof(
                                doublereal));
                        e_wsfe();
                    }
                }
/* L150: */
            }

L160:
            ;
        }
/* L170: */
    }

/*     Summary */

    alasvm_("DGG", nounit, &nerrs, &ntestt, &c__0);
    return 0;









/*     End of DDRVGG */

} /* ddrvgg_ */