[] add metering mode to CLI

1 files changed, 1319 insertions, 0 deletions

diff --git a/contrib/libs/clapack/dtrsyl.c b/contrib/libs/clapack/dtrsyl.c
new file mode 100644
index 0000000000..a23f564d2e
--- /dev/null
+++ b/contrib/libs/clapack/dtrsyl.c
@@ -0,0 +1,1319 @@
+/* dtrsyl.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 logical c_false = FALSE_;
+static integer c__2 = 2;
+static doublereal c_b26 = 1.;
+static doublereal c_b30 = 0.;
+static logical c_true = TRUE_;
+
+/* Subroutine */ int dtrsyl_(char *trana, char *tranb, integer *isgn, integer 
+	*m, integer *n, doublereal *a, integer *lda, doublereal *b, integer *
+	ldb, doublereal *c__, integer *ldc, doublereal *scale, integer *info)
+{
+    /* System generated locals */
+    integer a_dim1, a_offset, b_dim1, b_offset, c_dim1, c_offset, i__1, i__2, 
+	    i__3, i__4;
+    doublereal d__1, d__2;
+
+    /* Local variables */
+    integer j, k, l;
+    doublereal x[4]	/* was [2][2] */;
+    integer k1, k2, l1, l2;
+    doublereal a11, db, da11, vec[4]	/* was [2][2] */, dum[1], eps, sgn;
+    extern doublereal ddot_(integer *, doublereal *, integer *, doublereal *, 
+	    integer *);
+    integer ierr;
+    doublereal smin, suml, sumr;
+    extern /* Subroutine */ int dscal_(integer *, doublereal *, doublereal *, 
+	    integer *);
+    extern logical lsame_(char *, char *);
+    integer knext, lnext;
+    doublereal xnorm;
+    extern /* Subroutine */ int dlaln2_(logical *, integer *, integer *, 
+	    doublereal *, doublereal *, doublereal *, integer *, doublereal *, 
+	     doublereal *, doublereal *, integer *, doublereal *, doublereal *
+, doublereal *, integer *, doublereal *, doublereal *, integer *),
+	     dlasy2_(logical *, logical *, integer *, integer *, integer *, 
+	    doublereal *, integer *, doublereal *, integer *, doublereal *, 
+	    integer *, doublereal *, doublereal *, integer *, doublereal *, 
+	    integer *), dlabad_(doublereal *, doublereal *);
+    extern doublereal dlamch_(char *), dlange_(char *, integer *, 
+	    integer *, doublereal *, integer *, doublereal *);
+    doublereal scaloc;
+    extern /* Subroutine */ int xerbla_(char *, integer *);
+    doublereal bignum;
+    logical notrna, notrnb;
+    doublereal smlnum;
+
+
+/*  -- LAPACK routine (version 3.2) -- */
+/*  -- LAPACK is a software package provided by Univ. of Tennessee,    -- */
+/*  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- */
+/*     November 2006 */
+
+/*     .. Scalar Arguments .. */
+/*     .. */
+/*     .. Array Arguments .. */
+/*     .. */
+
+/*  Purpose */
+/*  ======= */
+
+/*  DTRSYL solves the real Sylvester matrix equation: */
+
+/*     op(A)*X + X*op(B) = scale*C or */
+/*     op(A)*X - X*op(B) = scale*C, */
+
+/*  where op(A) = A or A**T, and  A and B are both upper quasi- */
+/*  triangular. A is M-by-M and B is N-by-N; the right hand side C and */
+/*  the solution X are M-by-N; and scale is an output scale factor, set */
+/*  <= 1 to avoid overflow in X. */
+
+/*  A and B must be in Schur canonical form (as returned by DHSEQR), that */
+/*  is, block upper triangular with 1-by-1 and 2-by-2 diagonal blocks; */
+/*  each 2-by-2 diagonal block has its diagonal elements equal and its */
+/*  off-diagonal elements of opposite sign. */
+
+/*  Arguments */
+/*  ========= */
+
+/*  TRANA   (input) CHARACTER*1 */
+/*          Specifies the option op(A): */
+/*          = 'N': op(A) = A    (No transpose) */
+/*          = 'T': op(A) = A**T (Transpose) */
+/*          = 'C': op(A) = A**H (Conjugate transpose = Transpose) */
+
+/*  TRANB   (input) CHARACTER*1 */
+/*          Specifies the option op(B): */
+/*          = 'N': op(B) = B    (No transpose) */
+/*          = 'T': op(B) = B**T (Transpose) */
+/*          = 'C': op(B) = B**H (Conjugate transpose = Transpose) */
+
+/*  ISGN    (input) INTEGER */
+/*          Specifies the sign in the equation: */
+/*          = +1: solve op(A)*X + X*op(B) = scale*C */
+/*          = -1: solve op(A)*X - X*op(B) = scale*C */
+
+/*  M       (input) INTEGER */
+/*          The order of the matrix A, and the number of rows in the */
+/*          matrices X and C. M >= 0. */
+
+/*  N       (input) INTEGER */
+/*          The order of the matrix B, and the number of columns in the */
+/*          matrices X and C. N >= 0. */
+
+/*  A       (input) DOUBLE PRECISION array, dimension (LDA,M) */
+/*          The upper quasi-triangular matrix A, in Schur canonical form. */
+
+/*  LDA     (input) INTEGER */
+/*          The leading dimension of the array A. LDA >= max(1,M). */
+
+/*  B       (input) DOUBLE PRECISION array, dimension (LDB,N) */
+/*          The upper quasi-triangular matrix B, in Schur canonical form. */
+
+/*  LDB     (input) INTEGER */
+/*          The leading dimension of the array B. LDB >= max(1,N). */
+
+/*  C       (input/output) DOUBLE PRECISION array, dimension (LDC,N) */
+/*          On entry, the M-by-N right hand side matrix C. */
+/*          On exit, C is overwritten by the solution matrix X. */
+
+/*  LDC     (input) INTEGER */
+/*          The leading dimension of the array C. LDC >= max(1,M) */
+
+/*  SCALE   (output) DOUBLE PRECISION */
+/*          The scale factor, scale, set <= 1 to avoid overflow in X. */
+
+/*  INFO    (output) INTEGER */
+/*          = 0: successful exit */
+/*          < 0: if INFO = -i, the i-th argument had an illegal value */
+/*          = 1: A and B have common or very close eigenvalues; perturbed */
+/*               values were used to solve the equation (but the matrices */
+/*               A and B are unchanged). */
+
+/*  ===================================================================== */
+
+/*     .. Parameters .. */
+/*     .. */
+/*     .. Local Scalars .. */
+/*     .. */
+/*     .. Local Arrays .. */
+/*     .. */
+/*     .. External Functions .. */
+/*     .. */
+/*     .. External Subroutines .. */
+/*     .. */
+/*     .. Intrinsic Functions .. */
+/*     .. */
+/*     .. Executable Statements .. */
+
+/*     Decode and Test input parameters */
+
+    /* Parameter adjustments */
+    a_dim1 = *lda;
+    a_offset = 1 + a_dim1;
+    a -= a_offset;
+    b_dim1 = *ldb;
+    b_offset = 1 + b_dim1;
+    b -= b_offset;
+    c_dim1 = *ldc;
+    c_offset = 1 + c_dim1;
+    c__ -= c_offset;
+
+    /* Function Body */
+    notrna = lsame_(trana, "N");
+    notrnb = lsame_(tranb, "N");
+
+    *info = 0;
+    if (! notrna && ! lsame_(trana, "T") && ! lsame_(
+	    trana, "C")) {
+	*info = -1;
+    } else if (! notrnb && ! lsame_(tranb, "T") && ! 
+	    lsame_(tranb, "C")) {
+	*info = -2;
+    } else if (*isgn != 1 && *isgn != -1) {
+	*info = -3;
+    } else if (*m < 0) {
+	*info = -4;
+    } else if (*n < 0) {
+	*info = -5;
+    } else if (*lda < max(1,*m)) {
+	*info = -7;
+    } else if (*ldb < max(1,*n)) {
+	*info = -9;
+    } else if (*ldc < max(1,*m)) {
+	*info = -11;
+    }
+    if (*info != 0) {
+	i__1 = -(*info);
+	xerbla_("DTRSYL", &i__1);
+	return 0;
+    }
+
+/*     Quick return if possible */
+
+    *scale = 1.;
+    if (*m == 0 || *n == 0) {
+	return 0;
+    }
+
+/*     Set constants to control overflow */
+
+    eps = dlamch_("P");
+    smlnum = dlamch_("S");
+    bignum = 1. / smlnum;
+    dlabad_(&smlnum, &bignum);
+    smlnum = smlnum * (doublereal) (*m * *n) / eps;
+    bignum = 1. / smlnum;
+
+/* Computing MAX */
+    d__1 = smlnum, d__2 = eps * dlange_("M", m, m, &a[a_offset], lda, dum), d__1 = max(d__1,d__2), d__2 = eps * dlange_("M", n, n, 
+	    &b[b_offset], ldb, dum);
+    smin = max(d__1,d__2);
+
+    sgn = (doublereal) (*isgn);
+
+    if (notrna && notrnb) {
+
+/*        Solve    A*X + ISGN*X*B = scale*C. */
+
+/*        The (K,L)th block of X is determined starting from */
+/*        bottom-left corner column by column by */
+
+/*         A(K,K)*X(K,L) + ISGN*X(K,L)*B(L,L) = C(K,L) - R(K,L) */
+
+/*        Where */
+/*                  M                         L-1 */
+/*        R(K,L) = SUM [A(K,I)*X(I,L)] + ISGN*SUM [X(K,J)*B(J,L)]. */
+/*                I=K+1                       J=1 */
+
+/*        Start column loop (index = L) */
+/*        L1 (L2) : column index of the first (first) row of X(K,L). */
+
+	lnext = 1;
+	i__1 = *n;
+	for (l = 1; l <= i__1; ++l) {
+	    if (l < lnext) {
+		goto L60;
+	    }
+	    if (l == *n) {
+		l1 = l;
+		l2 = l;
+	    } else {
+		if (b[l + 1 + l * b_dim1] != 0.) {
+		    l1 = l;
+		    l2 = l + 1;
+		    lnext = l + 2;
+		} else {
+		    l1 = l;
+		    l2 = l;
+		    lnext = l + 1;
+		}
+	    }
+
+/*           Start row loop (index = K) */
+/*           K1 (K2): row index of the first (last) row of X(K,L). */
+
+	    knext = *m;
+	    for (k = *m; k >= 1; --k) {
+		if (k > knext) {
+		    goto L50;
+		}
+		if (k == 1) {
+		    k1 = k;
+		    k2 = k;
+		} else {
+		    if (a[k + (k - 1) * a_dim1] != 0.) {
+			k1 = k - 1;
+			k2 = k;
+			knext = k - 2;
+		    } else {
+			k1 = k;
+			k2 = k;
+			knext = k - 1;
+		    }
+		}
+
+		if (l1 == l2 && k1 == k2) {
+		    i__2 = *m - k1;
+/* Computing MIN */
+		    i__3 = k1 + 1;
+/* Computing MIN */
+		    i__4 = k1 + 1;
+		    suml = ddot_(&i__2, &a[k1 + min(i__3, *m)* a_dim1], lda, &
+			    c__[min(i__4, *m)+ l1 * c_dim1], &c__1);
+		    i__2 = l1 - 1;
+		    sumr = ddot_(&i__2, &c__[k1 + c_dim1], ldc, &b[l1 * 
+			    b_dim1 + 1], &c__1);
+		    vec[0] = c__[k1 + l1 * c_dim1] - (suml + sgn * sumr);
+		    scaloc = 1.;
+
+		    a11 = a[k1 + k1 * a_dim1] + sgn * b[l1 + l1 * b_dim1];
+		    da11 = abs(a11);
+		    if (da11 <= smin) {
+			a11 = smin;
+			da11 = smin;
+			*info = 1;
+		    }
+		    db = abs(vec[0]);
+		    if (da11 < 1. && db > 1.) {
+			if (db > bignum * da11) {
+			    scaloc = 1. / db;
+			}
+		    }
+		    x[0] = vec[0] * scaloc / a11;
+
+		    if (scaloc != 1.) {
+			i__2 = *n;
+			for (j = 1; j <= i__2; ++j) {
+			    dscal_(m, &scaloc, &c__[j * c_dim1 + 1], &c__1);
+/* L10: */
+			}
+			*scale *= scaloc;
+		    }
+		    c__[k1 + l1 * c_dim1] = x[0];
+
+		} else if (l1 == l2 && k1 != k2) {
+
+		    i__2 = *m - k2;
+/* Computing MIN */
+		    i__3 = k2 + 1;
+/* Computing MIN */
+		    i__4 = k2 + 1;
+		    suml = ddot_(&i__2, &a[k1 + min(i__3, *m)* a_dim1], lda, &
+			    c__[min(i__4, *m)+ l1 * c_dim1], &c__1);
+		    i__2 = l1 - 1;
+		    sumr = ddot_(&i__2, &c__[k1 + c_dim1], ldc, &b[l1 * 
+			    b_dim1 + 1], &c__1);
+		    vec[0] = c__[k1 + l1 * c_dim1] - (suml + sgn * sumr);
+
+		    i__2 = *m - k2;
+/* Computing MIN */
+		    i__3 = k2 + 1;
+/* Computing MIN */
+		    i__4 = k2 + 1;
+		    suml = ddot_(&i__2, &a[k2 + min(i__3, *m)* a_dim1], lda, &
+			    c__[min(i__4, *m)+ l1 * c_dim1], &c__1);
+		    i__2 = l1 - 1;
+		    sumr = ddot_(&i__2, &c__[k2 + c_dim1], ldc, &b[l1 * 
+			    b_dim1 + 1], &c__1);
+		    vec[1] = c__[k2 + l1 * c_dim1] - (suml + sgn * sumr);
+
+		    d__1 = -sgn * b[l1 + l1 * b_dim1];
+		    dlaln2_(&c_false, &c__2, &c__1, &smin, &c_b26, &a[k1 + k1 
+			    * a_dim1], lda, &c_b26, &c_b26, vec, &c__2, &d__1, 
+			     &c_b30, x, &c__2, &scaloc, &xnorm, &ierr);
+		    if (ierr != 0) {
+			*info = 1;
+		    }
+
+		    if (scaloc != 1.) {
+			i__2 = *n;
+			for (j = 1; j <= i__2; ++j) {
+			    dscal_(m, &scaloc, &c__[j * c_dim1 + 1], &c__1);
+/* L20: */
+			}
+			*scale *= scaloc;
+		    }
+		    c__[k1 + l1 * c_dim1] = x[0];
+		    c__[k2 + l1 * c_dim1] = x[1];
+
+		} else if (l1 != l2 && k1 == k2) {
+
+		    i__2 = *m - k1;
+/* Computing MIN */
+		    i__3 = k1 + 1;
+/* Computing MIN */
+		    i__4 = k1 + 1;
+		    suml = ddot_(&i__2, &a[k1 + min(i__3, *m)* a_dim1], lda, &
+			    c__[min(i__4, *m)+ l1 * c_dim1], &c__1);
+		    i__2 = l1 - 1;
+		    sumr = ddot_(&i__2, &c__[k1 + c_dim1], ldc, &b[l1 * 
+			    b_dim1 + 1], &c__1);
+		    vec[0] = sgn * (c__[k1 + l1 * c_dim1] - (suml + sgn * 
+			    sumr));
+
+		    i__2 = *m - k1;
+/* Computing MIN */
+		    i__3 = k1 + 1;
+/* Computing MIN */
+		    i__4 = k1 + 1;
+		    suml = ddot_(&i__2, &a[k1 + min(i__3, *m)* a_dim1], lda, &
+			    c__[min(i__4, *m)+ l2 * c_dim1], &c__1);
+		    i__2 = l1 - 1;
+		    sumr = ddot_(&i__2, &c__[k1 + c_dim1], ldc, &b[l2 * 
+			    b_dim1 + 1], &c__1);
+		    vec[1] = sgn * (c__[k1 + l2 * c_dim1] - (suml + sgn * 
+			    sumr));
+
+		    d__1 = -sgn * a[k1 + k1 * a_dim1];
+		    dlaln2_(&c_true, &c__2, &c__1, &smin, &c_b26, &b[l1 + l1 *
+			     b_dim1], ldb, &c_b26, &c_b26, vec, &c__2, &d__1, 
+			    &c_b30, x, &c__2, &scaloc, &xnorm, &ierr);
+		    if (ierr != 0) {
+			*info = 1;
+		    }
+
+		    if (scaloc != 1.) {
+			i__2 = *n;
+			for (j = 1; j <= i__2; ++j) {
+			    dscal_(m, &scaloc, &c__[j * c_dim1 + 1], &c__1);
+/* L30: */
+			}
+			*scale *= scaloc;
+		    }
+		    c__[k1 + l1 * c_dim1] = x[0];
+		    c__[k1 + l2 * c_dim1] = x[1];
+
+		} else if (l1 != l2 && k1 != k2) {
+
+		    i__2 = *m - k2;
+/* Computing MIN */
+		    i__3 = k2 + 1;
+/* Computing MIN */
+		    i__4 = k2 + 1;
+		    suml = ddot_(&i__2, &a[k1 + min(i__3, *m)* a_dim1], lda, &
+			    c__[min(i__4, *m)+ l1 * c_dim1], &c__1);
+		    i__2 = l1 - 1;
+		    sumr = ddot_(&i__2, &c__[k1 + c_dim1], ldc, &b[l1 * 
+			    b_dim1 + 1], &c__1);
+		    vec[0] = c__[k1 + l1 * c_dim1] - (suml + sgn * sumr);
+
+		    i__2 = *m - k2;
+/* Computing MIN */
+		    i__3 = k2 + 1;
+/* Computing MIN */
+		    i__4 = k2 + 1;
+		    suml = ddot_(&i__2, &a[k1 + min(i__3, *m)* a_dim1], lda, &
+			    c__[min(i__4, *m)+ l2 * c_dim1], &c__1);
+		    i__2 = l1 - 1;
+		    sumr = ddot_(&i__2, &c__[k1 + c_dim1], ldc, &b[l2 * 
+			    b_dim1 + 1], &c__1);
+		    vec[2] = c__[k1 + l2 * c_dim1] - (suml + sgn * sumr);
+
+		    i__2 = *m - k2;
+/* Computing MIN */
+		    i__3 = k2 + 1;
+/* Computing MIN */
+		    i__4 = k2 + 1;
+		    suml = ddot_(&i__2, &a[k2 + min(i__3, *m)* a_dim1], lda, &
+			    c__[min(i__4, *m)+ l1 * c_dim1], &c__1);
+		    i__2 = l1 - 1;
+		    sumr = ddot_(&i__2, &c__[k2 + c_dim1], ldc, &b[l1 * 
+			    b_dim1 + 1], &c__1);
+		    vec[1] = c__[k2 + l1 * c_dim1] - (suml + sgn * sumr);
+
+		    i__2 = *m - k2;
+/* Computing MIN */
+		    i__3 = k2 + 1;
+/* Computing MIN */
+		    i__4 = k2 + 1;
+		    suml = ddot_(&i__2, &a[k2 + min(i__3, *m)* a_dim1], lda, &
+			    c__[min(i__4, *m)+ l2 * c_dim1], &c__1);
+		    i__2 = l1 - 1;
+		    sumr = ddot_(&i__2, &c__[k2 + c_dim1], ldc, &b[l2 * 
+			    b_dim1 + 1], &c__1);
+		    vec[3] = c__[k2 + l2 * c_dim1] - (suml + sgn * sumr);
+
+		    dlasy2_(&c_false, &c_false, isgn, &c__2, &c__2, &a[k1 + 
+			    k1 * a_dim1], lda, &b[l1 + l1 * b_dim1], ldb, vec, 
+			     &c__2, &scaloc, x, &c__2, &xnorm, &ierr);
+		    if (ierr != 0) {
+			*info = 1;
+		    }
+
+		    if (scaloc != 1.) {
+			i__2 = *n;
+			for (j = 1; j <= i__2; ++j) {
+			    dscal_(m, &scaloc, &c__[j * c_dim1 + 1], &c__1);
+/* L40: */
+			}
+			*scale *= scaloc;
+		    }
+		    c__[k1 + l1 * c_dim1] = x[0];
+		    c__[k1 + l2 * c_dim1] = x[2];
+		    c__[k2 + l1 * c_dim1] = x[1];
+		    c__[k2 + l2 * c_dim1] = x[3];
+		}
+
+L50:
+		;
+	    }
+
+L60:
+	    ;
+	}
+
+    } else if (! notrna && notrnb) {
+
+/*        Solve    A' *X + ISGN*X*B = scale*C. */
+
+/*        The (K,L)th block of X is determined starting from */
+/*        upper-left corner column by column by */
+
+/*          A(K,K)'*X(K,L) + ISGN*X(K,L)*B(L,L) = C(K,L) - R(K,L) */
+
+/*        Where */
+/*                   K-1                        L-1 */
+/*          R(K,L) = SUM [A(I,K)'*X(I,L)] +ISGN*SUM [X(K,J)*B(J,L)] */
+/*                   I=1                        J=1 */
+
+/*        Start column loop (index = L) */
+/*        L1 (L2): column index of the first (last) row of X(K,L) */
+
+	lnext = 1;
+	i__1 = *n;
+	for (l = 1; l <= i__1; ++l) {
+	    if (l < lnext) {
+		goto L120;
+	    }
+	    if (l == *n) {
+		l1 = l;
+		l2 = l;
+	    } else {
+		if (b[l + 1 + l * b_dim1] != 0.) {
+		    l1 = l;
+		    l2 = l + 1;
+		    lnext = l + 2;
+		} else {
+		    l1 = l;
+		    l2 = l;
+		    lnext = l + 1;
+		}
+	    }
+
+/*           Start row loop (index = K) */
+/*           K1 (K2): row index of the first (last) row of X(K,L) */
+
+	    knext = 1;
+	    i__2 = *m;
+	    for (k = 1; k <= i__2; ++k) {
+		if (k < knext) {
+		    goto L110;
+		}
+		if (k == *m) {
+		    k1 = k;
+		    k2 = k;
+		} else {
+		    if (a[k + 1 + k * a_dim1] != 0.) {
+			k1 = k;
+			k2 = k + 1;
+			knext = k + 2;
+		    } else {
+			k1 = k;
+			k2 = k;
+			knext = k + 1;
+		    }
+		}
+
+		if (l1 == l2 && k1 == k2) {
+		    i__3 = k1 - 1;
+		    suml = ddot_(&i__3, &a[k1 * a_dim1 + 1], &c__1, &c__[l1 * 
+			    c_dim1 + 1], &c__1);
+		    i__3 = l1 - 1;
+		    sumr = ddot_(&i__3, &c__[k1 + c_dim1], ldc, &b[l1 * 
+			    b_dim1 + 1], &c__1);
+		    vec[0] = c__[k1 + l1 * c_dim1] - (suml + sgn * sumr);
+		    scaloc = 1.;
+
+		    a11 = a[k1 + k1 * a_dim1] + sgn * b[l1 + l1 * b_dim1];
+		    da11 = abs(a11);
+		    if (da11 <= smin) {
+			a11 = smin;
+			da11 = smin;
+			*info = 1;
+		    }
+		    db = abs(vec[0]);
+		    if (da11 < 1. && db > 1.) {
+			if (db > bignum * da11) {
+			    scaloc = 1. / db;
+			}
+		    }
+		    x[0] = vec[0] * scaloc / a11;
+
+		    if (scaloc != 1.) {
+			i__3 = *n;
+			for (j = 1; j <= i__3; ++j) {
+			    dscal_(m, &scaloc, &c__[j * c_dim1 + 1], &c__1);
+/* L70: */
+			}
+			*scale *= scaloc;
+		    }
+		    c__[k1 + l1 * c_dim1] = x[0];
+
+		} else if (l1 == l2 && k1 != k2) {
+
+		    i__3 = k1 - 1;
+		    suml = ddot_(&i__3, &a[k1 * a_dim1 + 1], &c__1, &c__[l1 * 
+			    c_dim1 + 1], &c__1);
+		    i__3 = l1 - 1;
+		    sumr = ddot_(&i__3, &c__[k1 + c_dim1], ldc, &b[l1 * 
+			    b_dim1 + 1], &c__1);
+		    vec[0] = c__[k1 + l1 * c_dim1] - (suml + sgn * sumr);
+
+		    i__3 = k1 - 1;
+		    suml = ddot_(&i__3, &a[k2 * a_dim1 + 1], &c__1, &c__[l1 * 
+			    c_dim1 + 1], &c__1);
+		    i__3 = l1 - 1;
+		    sumr = ddot_(&i__3, &c__[k2 + c_dim1], ldc, &b[l1 * 
+			    b_dim1 + 1], &c__1);
+		    vec[1] = c__[k2 + l1 * c_dim1] - (suml + sgn * sumr);
+
+		    d__1 = -sgn * b[l1 + l1 * b_dim1];
+		    dlaln2_(&c_true, &c__2, &c__1, &smin, &c_b26, &a[k1 + k1 *
+			     a_dim1], lda, &c_b26, &c_b26, vec, &c__2, &d__1, 
+			    &c_b30, x, &c__2, &scaloc, &xnorm, &ierr);
+		    if (ierr != 0) {
+			*info = 1;
+		    }
+
+		    if (scaloc != 1.) {
+			i__3 = *n;
+			for (j = 1; j <= i__3; ++j) {
+			    dscal_(m, &scaloc, &c__[j * c_dim1 + 1], &c__1);
+/* L80: */
+			}
+			*scale *= scaloc;
+		    }
+		    c__[k1 + l1 * c_dim1] = x[0];
+		    c__[k2 + l1 * c_dim1] = x[1];
+
+		} else if (l1 != l2 && k1 == k2) {
+
+		    i__3 = k1 - 1;
+		    suml = ddot_(&i__3, &a[k1 * a_dim1 + 1], &c__1, &c__[l1 * 
+			    c_dim1 + 1], &c__1);
+		    i__3 = l1 - 1;
+		    sumr = ddot_(&i__3, &c__[k1 + c_dim1], ldc, &b[l1 * 
+			    b_dim1 + 1], &c__1);
+		    vec[0] = sgn * (c__[k1 + l1 * c_dim1] - (suml + sgn * 
+			    sumr));
+
+		    i__3 = k1 - 1;
+		    suml = ddot_(&i__3, &a[k1 * a_dim1 + 1], &c__1, &c__[l2 * 
+			    c_dim1 + 1], &c__1);
+		    i__3 = l1 - 1;
+		    sumr = ddot_(&i__3, &c__[k1 + c_dim1], ldc, &b[l2 * 
+			    b_dim1 + 1], &c__1);
+		    vec[1] = sgn * (c__[k1 + l2 * c_dim1] - (suml + sgn * 
+			    sumr));
+
+		    d__1 = -sgn * a[k1 + k1 * a_dim1];
+		    dlaln2_(&c_true, &c__2, &c__1, &smin, &c_b26, &b[l1 + l1 *
+			     b_dim1], ldb, &c_b26, &c_b26, vec, &c__2, &d__1, 
+			    &c_b30, x, &c__2, &scaloc, &xnorm, &ierr);
+		    if (ierr != 0) {
+			*info = 1;
+		    }
+
+		    if (scaloc != 1.) {
+			i__3 = *n;
+			for (j = 1; j <= i__3; ++j) {
+			    dscal_(m, &scaloc, &c__[j * c_dim1 + 1], &c__1);
+/* L90: */
+			}
+			*scale *= scaloc;
+		    }
+		    c__[k1 + l1 * c_dim1] = x[0];
+		    c__[k1 + l2 * c_dim1] = x[1];
+
+		} else if (l1 != l2 && k1 != k2) {
+
+		    i__3 = k1 - 1;
+		    suml = ddot_(&i__3, &a[k1 * a_dim1 + 1], &c__1, &c__[l1 * 
+			    c_dim1 + 1], &c__1);
+		    i__3 = l1 - 1;
+		    sumr = ddot_(&i__3, &c__[k1 + c_dim1], ldc, &b[l1 * 
+			    b_dim1 + 1], &c__1);
+		    vec[0] = c__[k1 + l1 * c_dim1] - (suml + sgn * sumr);
+
+		    i__3 = k1 - 1;
+		    suml = ddot_(&i__3, &a[k1 * a_dim1 + 1], &c__1, &c__[l2 * 
+			    c_dim1 + 1], &c__1);
+		    i__3 = l1 - 1;
+		    sumr = ddot_(&i__3, &c__[k1 + c_dim1], ldc, &b[l2 * 
+			    b_dim1 + 1], &c__1);
+		    vec[2] = c__[k1 + l2 * c_dim1] - (suml + sgn * sumr);
+
+		    i__3 = k1 - 1;
+		    suml = ddot_(&i__3, &a[k2 * a_dim1 + 1], &c__1, &c__[l1 * 
+			    c_dim1 + 1], &c__1);
+		    i__3 = l1 - 1;
+		    sumr = ddot_(&i__3, &c__[k2 + c_dim1], ldc, &b[l1 * 
+			    b_dim1 + 1], &c__1);
+		    vec[1] = c__[k2 + l1 * c_dim1] - (suml + sgn * sumr);
+
+		    i__3 = k1 - 1;
+		    suml = ddot_(&i__3, &a[k2 * a_dim1 + 1], &c__1, &c__[l2 * 
+			    c_dim1 + 1], &c__1);
+		    i__3 = l1 - 1;
+		    sumr = ddot_(&i__3, &c__[k2 + c_dim1], ldc, &b[l2 * 
+			    b_dim1 + 1], &c__1);
+		    vec[3] = c__[k2 + l2 * c_dim1] - (suml + sgn * sumr);
+
+		    dlasy2_(&c_true, &c_false, isgn, &c__2, &c__2, &a[k1 + k1 
+			    * a_dim1], lda, &b[l1 + l1 * b_dim1], ldb, vec, &
+			    c__2, &scaloc, x, &c__2, &xnorm, &ierr);
+		    if (ierr != 0) {
+			*info = 1;
+		    }
+
+		    if (scaloc != 1.) {
+			i__3 = *n;
+			for (j = 1; j <= i__3; ++j) {
+			    dscal_(m, &scaloc, &c__[j * c_dim1 + 1], &c__1);
+/* L100: */
+			}
+			*scale *= scaloc;
+		    }
+		    c__[k1 + l1 * c_dim1] = x[0];
+		    c__[k1 + l2 * c_dim1] = x[2];
+		    c__[k2 + l1 * c_dim1] = x[1];
+		    c__[k2 + l2 * c_dim1] = x[3];
+		}
+
+L110:
+		;
+	    }
+L120:
+	    ;
+	}
+
+    } else if (! notrna && ! notrnb) {
+
+/*        Solve    A'*X + ISGN*X*B' = scale*C. */
+
+/*        The (K,L)th block of X is determined starting from */
+/*        top-right corner column by column by */
+
+/*           A(K,K)'*X(K,L) + ISGN*X(K,L)*B(L,L)' = C(K,L) - R(K,L) */
+
+/*        Where */
+/*                     K-1                          N */
+/*            R(K,L) = SUM [A(I,K)'*X(I,L)] + ISGN*SUM [X(K,J)*B(L,J)']. */
+/*                     I=1                        J=L+1 */
+
+/*        Start column loop (index = L) */
+/*        L1 (L2): column index of the first (last) row of X(K,L) */
+
+	lnext = *n;
+	for (l = *n; l >= 1; --l) {
+	    if (l > lnext) {
+		goto L180;
+	    }
+	    if (l == 1) {
+		l1 = l;
+		l2 = l;
+	    } else {
+		if (b[l + (l - 1) * b_dim1] != 0.) {
+		    l1 = l - 1;
+		    l2 = l;
+		    lnext = l - 2;
+		} else {
+		    l1 = l;
+		    l2 = l;
+		    lnext = l - 1;
+		}
+	    }
+
+/*           Start row loop (index = K) */
+/*           K1 (K2): row index of the first (last) row of X(K,L) */
+
+	    knext = 1;
+	    i__1 = *m;
+	    for (k = 1; k <= i__1; ++k) {
+		if (k < knext) {
+		    goto L170;
+		}
+		if (k == *m) {
+		    k1 = k;
+		    k2 = k;
+		} else {
+		    if (a[k + 1 + k * a_dim1] != 0.) {
+			k1 = k;
+			k2 = k + 1;
+			knext = k + 2;
+		    } else {
+			k1 = k;
+			k2 = k;
+			knext = k + 1;
+		    }
+		}
+
+		if (l1 == l2 && k1 == k2) {
+		    i__2 = k1 - 1;
+		    suml = ddot_(&i__2, &a[k1 * a_dim1 + 1], &c__1, &c__[l1 * 
+			    c_dim1 + 1], &c__1);
+		    i__2 = *n - l1;
+/* Computing MIN */
+		    i__3 = l1 + 1;
+/* Computing MIN */
+		    i__4 = l1 + 1;
+		    sumr = ddot_(&i__2, &c__[k1 + min(i__3, *n)* c_dim1], ldc, 
+			     &b[l1 + min(i__4, *n)* b_dim1], ldb);
+		    vec[0] = c__[k1 + l1 * c_dim1] - (suml + sgn * sumr);
+		    scaloc = 1.;
+
+		    a11 = a[k1 + k1 * a_dim1] + sgn * b[l1 + l1 * b_dim1];
+		    da11 = abs(a11);
+		    if (da11 <= smin) {
+			a11 = smin;
+			da11 = smin;
+			*info = 1;
+		    }
+		    db = abs(vec[0]);
+		    if (da11 < 1. && db > 1.) {
+			if (db > bignum * da11) {
+			    scaloc = 1. / db;
+			}
+		    }
+		    x[0] = vec[0] * scaloc / a11;
+
+		    if (scaloc != 1.) {
+			i__2 = *n;
+			for (j = 1; j <= i__2; ++j) {
+			    dscal_(m, &scaloc, &c__[j * c_dim1 + 1], &c__1);
+/* L130: */
+			}
+			*scale *= scaloc;
+		    }
+		    c__[k1 + l1 * c_dim1] = x[0];
+
+		} else if (l1 == l2 && k1 != k2) {
+
+		    i__2 = k1 - 1;
+		    suml = ddot_(&i__2, &a[k1 * a_dim1 + 1], &c__1, &c__[l1 * 
+			    c_dim1 + 1], &c__1);
+		    i__2 = *n - l2;
+/* Computing MIN */
+		    i__3 = l2 + 1;
+/* Computing MIN */
+		    i__4 = l2 + 1;
+		    sumr = ddot_(&i__2, &c__[k1 + min(i__3, *n)* c_dim1], ldc, 
+			     &b[l1 + min(i__4, *n)* b_dim1], ldb);
+		    vec[0] = c__[k1 + l1 * c_dim1] - (suml + sgn * sumr);
+
+		    i__2 = k1 - 1;
+		    suml = ddot_(&i__2, &a[k2 * a_dim1 + 1], &c__1, &c__[l1 * 
+			    c_dim1 + 1], &c__1);
+		    i__2 = *n - l2;
+/* Computing MIN */
+		    i__3 = l2 + 1;
+/* Computing MIN */
+		    i__4 = l2 + 1;
+		    sumr = ddot_(&i__2, &c__[k2 + min(i__3, *n)* c_dim1], ldc, 
+			     &b[l1 + min(i__4, *n)* b_dim1], ldb);
+		    vec[1] = c__[k2 + l1 * c_dim1] - (suml + sgn * sumr);
+
+		    d__1 = -sgn * b[l1 + l1 * b_dim1];
+		    dlaln2_(&c_true, &c__2, &c__1, &smin, &c_b26, &a[k1 + k1 *
+			     a_dim1], lda, &c_b26, &c_b26, vec, &c__2, &d__1, 
+			    &c_b30, x, &c__2, &scaloc, &xnorm, &ierr);
+		    if (ierr != 0) {
+			*info = 1;
+		    }
+
+		    if (scaloc != 1.) {
+			i__2 = *n;
+			for (j = 1; j <= i__2; ++j) {
+			    dscal_(m, &scaloc, &c__[j * c_dim1 + 1], &c__1);
+/* L140: */
+			}
+			*scale *= scaloc;
+		    }
+		    c__[k1 + l1 * c_dim1] = x[0];
+		    c__[k2 + l1 * c_dim1] = x[1];
+
+		} else if (l1 != l2 && k1 == k2) {
+
+		    i__2 = k1 - 1;
+		    suml = ddot_(&i__2, &a[k1 * a_dim1 + 1], &c__1, &c__[l1 * 
+			    c_dim1 + 1], &c__1);
+		    i__2 = *n - l2;
+/* Computing MIN */
+		    i__3 = l2 + 1;
+/* Computing MIN */
+		    i__4 = l2 + 1;
+		    sumr = ddot_(&i__2, &c__[k1 + min(i__3, *n)* c_dim1], ldc, 
+			     &b[l1 + min(i__4, *n)* b_dim1], ldb);
+		    vec[0] = sgn * (c__[k1 + l1 * c_dim1] - (suml + sgn * 
+			    sumr));
+
+		    i__2 = k1 - 1;
+		    suml = ddot_(&i__2, &a[k1 * a_dim1 + 1], &c__1, &c__[l2 * 
+			    c_dim1 + 1], &c__1);
+		    i__2 = *n - l2;
+/* Computing MIN */
+		    i__3 = l2 + 1;
+/* Computing MIN */
+		    i__4 = l2 + 1;
+		    sumr = ddot_(&i__2, &c__[k1 + min(i__3, *n)* c_dim1], ldc, 
+			     &b[l2 + min(i__4, *n)* b_dim1], ldb);
+		    vec[1] = sgn * (c__[k1 + l2 * c_dim1] - (suml + sgn * 
+			    sumr));
+
+		    d__1 = -sgn * a[k1 + k1 * a_dim1];
+		    dlaln2_(&c_false, &c__2, &c__1, &smin, &c_b26, &b[l1 + l1 
+			    * b_dim1], ldb, &c_b26, &c_b26, vec, &c__2, &d__1, 
+			     &c_b30, x, &c__2, &scaloc, &xnorm, &ierr);
+		    if (ierr != 0) {
+			*info = 1;
+		    }
+
+		    if (scaloc != 1.) {
+			i__2 = *n;
+			for (j = 1; j <= i__2; ++j) {
+			    dscal_(m, &scaloc, &c__[j * c_dim1 + 1], &c__1);
+/* L150: */
+			}
+			*scale *= scaloc;
+		    }
+		    c__[k1 + l1 * c_dim1] = x[0];
+		    c__[k1 + l2 * c_dim1] = x[1];
+
+		} else if (l1 != l2 && k1 != k2) {
+
+		    i__2 = k1 - 1;
+		    suml = ddot_(&i__2, &a[k1 * a_dim1 + 1], &c__1, &c__[l1 * 
+			    c_dim1 + 1], &c__1);
+		    i__2 = *n - l2;
+/* Computing MIN */
+		    i__3 = l2 + 1;
+/* Computing MIN */
+		    i__4 = l2 + 1;
+		    sumr = ddot_(&i__2, &c__[k1 + min(i__3, *n)* c_dim1], ldc, 
+			     &b[l1 + min(i__4, *n)* b_dim1], ldb);
+		    vec[0] = c__[k1 + l1 * c_dim1] - (suml + sgn * sumr);
+
+		    i__2 = k1 - 1;
+		    suml = ddot_(&i__2, &a[k1 * a_dim1 + 1], &c__1, &c__[l2 * 
+			    c_dim1 + 1], &c__1);
+		    i__2 = *n - l2;
+/* Computing MIN */
+		    i__3 = l2 + 1;
+/* Computing MIN */
+		    i__4 = l2 + 1;
+		    sumr = ddot_(&i__2, &c__[k1 + min(i__3, *n)* c_dim1], ldc, 
+			     &b[l2 + min(i__4, *n)* b_dim1], ldb);
+		    vec[2] = c__[k1 + l2 * c_dim1] - (suml + sgn * sumr);
+
+		    i__2 = k1 - 1;
+		    suml = ddot_(&i__2, &a[k2 * a_dim1 + 1], &c__1, &c__[l1 * 
+			    c_dim1 + 1], &c__1);
+		    i__2 = *n - l2;
+/* Computing MIN */
+		    i__3 = l2 + 1;
+/* Computing MIN */
+		    i__4 = l2 + 1;
+		    sumr = ddot_(&i__2, &c__[k2 + min(i__3, *n)* c_dim1], ldc, 
+			     &b[l1 + min(i__4, *n)* b_dim1], ldb);
+		    vec[1] = c__[k2 + l1 * c_dim1] - (suml + sgn * sumr);
+
+		    i__2 = k1 - 1;
+		    suml = ddot_(&i__2, &a[k2 * a_dim1 + 1], &c__1, &c__[l2 * 
+			    c_dim1 + 1], &c__1);
+		    i__2 = *n - l2;
+/* Computing MIN */
+		    i__3 = l2 + 1;
+/* Computing MIN */
+		    i__4 = l2 + 1;
+		    sumr = ddot_(&i__2, &c__[k2 + min(i__3, *n)* c_dim1], ldc, 
+			     &b[l2 + min(i__4, *n)* b_dim1], ldb);
+		    vec[3] = c__[k2 + l2 * c_dim1] - (suml + sgn * sumr);
+
+		    dlasy2_(&c_true, &c_true, isgn, &c__2, &c__2, &a[k1 + k1 *
+			     a_dim1], lda, &b[l1 + l1 * b_dim1], ldb, vec, &
+			    c__2, &scaloc, x, &c__2, &xnorm, &ierr);
+		    if (ierr != 0) {
+			*info = 1;
+		    }
+
+		    if (scaloc != 1.) {
+			i__2 = *n;
+			for (j = 1; j <= i__2; ++j) {
+			    dscal_(m, &scaloc, &c__[j * c_dim1 + 1], &c__1);
+/* L160: */
+			}
+			*scale *= scaloc;
+		    }
+		    c__[k1 + l1 * c_dim1] = x[0];
+		    c__[k1 + l2 * c_dim1] = x[2];
+		    c__[k2 + l1 * c_dim1] = x[1];
+		    c__[k2 + l2 * c_dim1] = x[3];
+		}
+
+L170:
+		;
+	    }
+L180:
+	    ;
+	}
+
+    } else if (notrna && ! notrnb) {
+
+/*        Solve    A*X + ISGN*X*B' = scale*C. */
+
+/*        The (K,L)th block of X is determined starting from */
+/*        bottom-right corner column by column by */
+
+/*            A(K,K)*X(K,L) + ISGN*X(K,L)*B(L,L)' = C(K,L) - R(K,L) */
+
+/*        Where */
+/*                      M                          N */
+/*            R(K,L) = SUM [A(K,I)*X(I,L)] + ISGN*SUM [X(K,J)*B(L,J)']. */
+/*                    I=K+1                      J=L+1 */
+
+/*        Start column loop (index = L) */
+/*        L1 (L2): column index of the first (last) row of X(K,L) */
+
+	lnext = *n;
+	for (l = *n; l >= 1; --l) {
+	    if (l > lnext) {
+		goto L240;
+	    }
+	    if (l == 1) {
+		l1 = l;
+		l2 = l;
+	    } else {
+		if (b[l + (l - 1) * b_dim1] != 0.) {
+		    l1 = l - 1;
+		    l2 = l;
+		    lnext = l - 2;
+		} else {
+		    l1 = l;
+		    l2 = l;
+		    lnext = l - 1;
+		}
+	    }
+
+/*           Start row loop (index = K) */
+/*           K1 (K2): row index of the first (last) row of X(K,L) */
+
+	    knext = *m;
+	    for (k = *m; k >= 1; --k) {
+		if (k > knext) {
+		    goto L230;
+		}
+		if (k == 1) {
+		    k1 = k;
+		    k2 = k;
+		} else {
+		    if (a[k + (k - 1) * a_dim1] != 0.) {
+			k1 = k - 1;
+			k2 = k;
+			knext = k - 2;
+		    } else {
+			k1 = k;
+			k2 = k;
+			knext = k - 1;
+		    }
+		}
+
+		if (l1 == l2 && k1 == k2) {
+		    i__1 = *m - k1;
+/* Computing MIN */
+		    i__2 = k1 + 1;
+/* Computing MIN */
+		    i__3 = k1 + 1;
+		    suml = ddot_(&i__1, &a[k1 + min(i__2, *m)* a_dim1], lda, &
+			    c__[min(i__3, *m)+ l1 * c_dim1], &c__1);
+		    i__1 = *n - l1;
+/* Computing MIN */
+		    i__2 = l1 + 1;
+/* Computing MIN */
+		    i__3 = l1 + 1;
+		    sumr = ddot_(&i__1, &c__[k1 + min(i__2, *n)* c_dim1], ldc, 
+			     &b[l1 + min(i__3, *n)* b_dim1], ldb);
+		    vec[0] = c__[k1 + l1 * c_dim1] - (suml + sgn * sumr);
+		    scaloc = 1.;
+
+		    a11 = a[k1 + k1 * a_dim1] + sgn * b[l1 + l1 * b_dim1];
+		    da11 = abs(a11);
+		    if (da11 <= smin) {
+			a11 = smin;
+			da11 = smin;
+			*info = 1;
+		    }
+		    db = abs(vec[0]);
+		    if (da11 < 1. && db > 1.) {
+			if (db > bignum * da11) {
+			    scaloc = 1. / db;
+			}
+		    }
+		    x[0] = vec[0] * scaloc / a11;
+
+		    if (scaloc != 1.) {
+			i__1 = *n;
+			for (j = 1; j <= i__1; ++j) {
+			    dscal_(m, &scaloc, &c__[j * c_dim1 + 1], &c__1);
+/* L190: */
+			}
+			*scale *= scaloc;
+		    }
+		    c__[k1 + l1 * c_dim1] = x[0];
+
+		} else if (l1 == l2 && k1 != k2) {
+
+		    i__1 = *m - k2;
+/* Computing MIN */
+		    i__2 = k2 + 1;
+/* Computing MIN */
+		    i__3 = k2 + 1;
+		    suml = ddot_(&i__1, &a[k1 + min(i__2, *m)* a_dim1], lda, &
+			    c__[min(i__3, *m)+ l1 * c_dim1], &c__1);
+		    i__1 = *n - l2;
+/* Computing MIN */
+		    i__2 = l2 + 1;
+/* Computing MIN */
+		    i__3 = l2 + 1;
+		    sumr = ddot_(&i__1, &c__[k1 + min(i__2, *n)* c_dim1], ldc, 
+			     &b[l1 + min(i__3, *n)* b_dim1], ldb);
+		    vec[0] = c__[k1 + l1 * c_dim1] - (suml + sgn * sumr);
+
+		    i__1 = *m - k2;
+/* Computing MIN */
+		    i__2 = k2 + 1;
+/* Computing MIN */
+		    i__3 = k2 + 1;
+		    suml = ddot_(&i__1, &a[k2 + min(i__2, *m)* a_dim1], lda, &
+			    c__[min(i__3, *m)+ l1 * c_dim1], &c__1);
+		    i__1 = *n - l2;
+/* Computing MIN */
+		    i__2 = l2 + 1;
+/* Computing MIN */
+		    i__3 = l2 + 1;
+		    sumr = ddot_(&i__1, &c__[k2 + min(i__2, *n)* c_dim1], ldc, 
+			     &b[l1 + min(i__3, *n)* b_dim1], ldb);
+		    vec[1] = c__[k2 + l1 * c_dim1] - (suml + sgn * sumr);
+
+		    d__1 = -sgn * b[l1 + l1 * b_dim1];
+		    dlaln2_(&c_false, &c__2, &c__1, &smin, &c_b26, &a[k1 + k1 
+			    * a_dim1], lda, &c_b26, &c_b26, vec, &c__2, &d__1, 
+			     &c_b30, x, &c__2, &scaloc, &xnorm, &ierr);
+		    if (ierr != 0) {
+			*info = 1;
+		    }
+
+		    if (scaloc != 1.) {
+			i__1 = *n;
+			for (j = 1; j <= i__1; ++j) {
+			    dscal_(m, &scaloc, &c__[j * c_dim1 + 1], &c__1);
+/* L200: */
+			}
+			*scale *= scaloc;
+		    }
+		    c__[k1 + l1 * c_dim1] = x[0];
+		    c__[k2 + l1 * c_dim1] = x[1];
+
+		} else if (l1 != l2 && k1 == k2) {
+
+		    i__1 = *m - k1;
+/* Computing MIN */
+		    i__2 = k1 + 1;
+/* Computing MIN */
+		    i__3 = k1 + 1;
+		    suml = ddot_(&i__1, &a[k1 + min(i__2, *m)* a_dim1], lda, &
+			    c__[min(i__3, *m)+ l1 * c_dim1], &c__1);
+		    i__1 = *n - l2;
+/* Computing MIN */
+		    i__2 = l2 + 1;
+/* Computing MIN */
+		    i__3 = l2 + 1;
+		    sumr = ddot_(&i__1, &c__[k1 + min(i__2, *n)* c_dim1], ldc, 
+			     &b[l1 + min(i__3, *n)* b_dim1], ldb);
+		    vec[0] = sgn * (c__[k1 + l1 * c_dim1] - (suml + sgn * 
+			    sumr));
+
+		    i__1 = *m - k1;
+/* Computing MIN */
+		    i__2 = k1 + 1;
+/* Computing MIN */
+		    i__3 = k1 + 1;
+		    suml = ddot_(&i__1, &a[k1 + min(i__2, *m)* a_dim1], lda, &
+			    c__[min(i__3, *m)+ l2 * c_dim1], &c__1);
+		    i__1 = *n - l2;
+/* Computing MIN */
+		    i__2 = l2 + 1;
+/* Computing MIN */
+		    i__3 = l2 + 1;
+		    sumr = ddot_(&i__1, &c__[k1 + min(i__2, *n)* c_dim1], ldc, 
+			     &b[l2 + min(i__3, *n)* b_dim1], ldb);
+		    vec[1] = sgn * (c__[k1 + l2 * c_dim1] - (suml + sgn * 
+			    sumr));
+
+		    d__1 = -sgn * a[k1 + k1 * a_dim1];
+		    dlaln2_(&c_false, &c__2, &c__1, &smin, &c_b26, &b[l1 + l1 
+			    * b_dim1], ldb, &c_b26, &c_b26, vec, &c__2, &d__1, 
+			     &c_b30, x, &c__2, &scaloc, &xnorm, &ierr);
+		    if (ierr != 0) {
+			*info = 1;
+		    }
+
+		    if (scaloc != 1.) {
+			i__1 = *n;
+			for (j = 1; j <= i__1; ++j) {
+			    dscal_(m, &scaloc, &c__[j * c_dim1 + 1], &c__1);
+/* L210: */
+			}
+			*scale *= scaloc;
+		    }
+		    c__[k1 + l1 * c_dim1] = x[0];
+		    c__[k1 + l2 * c_dim1] = x[1];
+
+		} else if (l1 != l2 && k1 != k2) {
+
+		    i__1 = *m - k2;
+/* Computing MIN */
+		    i__2 = k2 + 1;
+/* Computing MIN */
+		    i__3 = k2 + 1;
+		    suml = ddot_(&i__1, &a[k1 + min(i__2, *m)* a_dim1], lda, &
+			    c__[min(i__3, *m)+ l1 * c_dim1], &c__1);
+		    i__1 = *n - l2;
+/* Computing MIN */
+		    i__2 = l2 + 1;
+/* Computing MIN */
+		    i__3 = l2 + 1;
+		    sumr = ddot_(&i__1, &c__[k1 + min(i__2, *n)* c_dim1], ldc, 
+			     &b[l1 + min(i__3, *n)* b_dim1], ldb);
+		    vec[0] = c__[k1 + l1 * c_dim1] - (suml + sgn * sumr);
+
+		    i__1 = *m - k2;
+/* Computing MIN */
+		    i__2 = k2 + 1;
+/* Computing MIN */
+		    i__3 = k2 + 1;
+		    suml = ddot_(&i__1, &a[k1 + min(i__2, *m)* a_dim1], lda, &
+			    c__[min(i__3, *m)+ l2 * c_dim1], &c__1);
+		    i__1 = *n - l2;
+/* Computing MIN */
+		    i__2 = l2 + 1;
+/* Computing MIN */
+		    i__3 = l2 + 1;
+		    sumr = ddot_(&i__1, &c__[k1 + min(i__2, *n)* c_dim1], ldc, 
+			     &b[l2 + min(i__3, *n)* b_dim1], ldb);
+		    vec[2] = c__[k1 + l2 * c_dim1] - (suml + sgn * sumr);
+
+		    i__1 = *m - k2;
+/* Computing MIN */
+		    i__2 = k2 + 1;
+/* Computing MIN */
+		    i__3 = k2 + 1;
+		    suml = ddot_(&i__1, &a[k2 + min(i__2, *m)* a_dim1], lda, &
+			    c__[min(i__3, *m)+ l1 * c_dim1], &c__1);
+		    i__1 = *n - l2;
+/* Computing MIN */
+		    i__2 = l2 + 1;
+/* Computing MIN */
+		    i__3 = l2 + 1;
+		    sumr = ddot_(&i__1, &c__[k2 + min(i__2, *n)* c_dim1], ldc, 
+			     &b[l1 + min(i__3, *n)* b_dim1], ldb);
+		    vec[1] = c__[k2 + l1 * c_dim1] - (suml + sgn * sumr);
+
+		    i__1 = *m - k2;
+/* Computing MIN */
+		    i__2 = k2 + 1;
+/* Computing MIN */
+		    i__3 = k2 + 1;
+		    suml = ddot_(&i__1, &a[k2 + min(i__2, *m)* a_dim1], lda, &
+			    c__[min(i__3, *m)+ l2 * c_dim1], &c__1);
+		    i__1 = *n - l2;
+/* Computing MIN */
+		    i__2 = l2 + 1;
+/* Computing MIN */
+		    i__3 = l2 + 1;
+		    sumr = ddot_(&i__1, &c__[k2 + min(i__2, *n)* c_dim1], ldc, 
+			     &b[l2 + min(i__3, *n)* b_dim1], ldb);
+		    vec[3] = c__[k2 + l2 * c_dim1] - (suml + sgn * sumr);
+
+		    dlasy2_(&c_false, &c_true, isgn, &c__2, &c__2, &a[k1 + k1 
+			    * a_dim1], lda, &b[l1 + l1 * b_dim1], ldb, vec, &
+			    c__2, &scaloc, x, &c__2, &xnorm, &ierr);
+		    if (ierr != 0) {
+			*info = 1;
+		    }
+
+		    if (scaloc != 1.) {
+			i__1 = *n;
+			for (j = 1; j <= i__1; ++j) {
+			    dscal_(m, &scaloc, &c__[j * c_dim1 + 1], &c__1);
+/* L220: */
+			}
+			*scale *= scaloc;
+		    }
+		    c__[k1 + l1 * c_dim1] = x[0];
+		    c__[k1 + l2 * c_dim1] = x[2];
+		    c__[k2 + l1 * c_dim1] = x[1];
+		    c__[k2 + l2 * c_dim1] = x[3];
+		}
+
+L230:
+		;
+	    }
+L240:
+	    ;
+	}
+
+    }
+
+    return 0;
+
+/*     End of DTRSYL */
+
+} /* dtrsyl_ */