/* fortran/zlasr.f -- translated by f2c (version 20200916).
   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
*/

#ifdef __cplusplus
extern "C" {
#endif
#include "lmp_f2c.h"

/* > \brief \b ZLASR applies a sequence of plane rotations to a general rectangular matrix. */

/*  =========== DOCUMENTATION =========== */

/* Online html documentation available at */
/*            http://www.netlib.org/lapack/explore-html/ */

/* > \htmlonly */
/* > Download ZLASR + dependencies */
/* > <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/zlasr.f
"> */
/* > [TGZ]</a> */
/* > <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/zlasr.f
"> */
/* > [ZIP]</a> */
/* > <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/zlasr.f
"> */
/* > [TXT]</a> */
/* > \endhtmlonly */

/*  Definition: */
/*  =========== */

/*       SUBROUTINE ZLASR( SIDE, PIVOT, DIRECT, M, N, C, S, A, LDA ) */

/*       .. Scalar Arguments .. */
/*       CHARACTER          DIRECT, PIVOT, SIDE */
/*       INTEGER            LDA, M, N */
/*       .. */
/*       .. Array Arguments .. */
/*       DOUBLE PRECISION   C( * ), S( * ) */
/*       COMPLEX*16         A( LDA, * ) */
/*       .. */


/* > \par Purpose: */
/*  ============= */
/* > */
/* > \verbatim */
/* > */
/* > ZLASR applies a sequence of real plane rotations to a complex matrix */
/* > A, from either the left or the right. */
/* > */
/* > When SIDE = 'L', the transformation takes the form */
/* > */
/* >    A := P*A */
/* > */
/* > and when SIDE = 'R', the transformation takes the form */
/* > */
/* >    A := A*P**T */
/* > */
/* > where P is an orthogonal matrix consisting of a sequence of z plane */
/* > rotations, with z = M when SIDE = 'L' and z = N when SIDE = 'R', */
/* > and P**T is the transpose of P. */
/* > */
/* > When DIRECT = 'F' (Forward sequence), then */
/* > */
/* >    P = P(z-1) * ... * P(2) * P(1) */
/* > */
/* > and when DIRECT = 'B' (Backward sequence), then */
/* > */
/* >    P = P(1) * P(2) * ... * P(z-1) */
/* > */
/* > where P(k) is a plane rotation matrix defined by the 2-by-2 rotation */
/* > */
/* >    R(k) = (  c(k)  s(k) ) */
/* >         = ( -s(k)  c(k) ). */
/* > */
/* > When PIVOT = 'V' (Variable pivot), the rotation is performed */
/* > for the plane (k,k+1), i.e., P(k) has the form */
/* > */
/* >    P(k) = (  1                                            ) */
/* >           (       ...                                     ) */
/* >           (              1                                ) */
/* >           (                   c(k)  s(k)                  ) */
/* >           (                  -s(k)  c(k)                  ) */
/* >           (                                1              ) */
/* >           (                                     ...       ) */
/* >           (                                            1  ) */
/* > */
/* > where R(k) appears as a rank-2 modification to the identity matrix in */
/* > rows and columns k and k+1. */
/* > */
/* > When PIVOT = 'T' (Top pivot), the rotation is performed for the */
/* > plane (1,k+1), so P(k) has the form */
/* > */
/* >    P(k) = (  c(k)                    s(k)                 ) */
/* >           (         1                                     ) */
/* >           (              ...                              ) */
/* >           (                     1                         ) */
/* >           ( -s(k)                    c(k)                 ) */
/* >           (                                 1             ) */
/* >           (                                      ...      ) */
/* >           (                                             1 ) */
/* > */
/* > where R(k) appears in rows and columns 1 and k+1. */
/* > */
/* > Similarly, when PIVOT = 'B' (Bottom pivot), the rotation is */
/* > performed for the plane (k,z), giving P(k) the form */
/* > */
/* >    P(k) = ( 1                                             ) */
/* >           (      ...                                      ) */
/* >           (             1                                 ) */
/* >           (                  c(k)                    s(k) ) */
/* >           (                         1                     ) */
/* >           (                              ...              ) */
/* >           (                                     1         ) */
/* >           (                 -s(k)                    c(k) ) */
/* > */
/* > where R(k) appears in rows and columns k and z.  The rotations are */
/* > performed without ever forming P(k) explicitly. */
/* > \endverbatim */

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

/* > \param[in] SIDE */
/* > \verbatim */
/* >          SIDE is CHARACTER*1 */
/* >          Specifies whether the plane rotation matrix P is applied to */
/* >          A on the left or the right. */
/* >          = 'L':  Left, compute A := P*A */
/* >          = 'R':  Right, compute A:= A*P**T */
/* > \endverbatim */
/* > */
/* > \param[in] PIVOT */
/* > \verbatim */
/* >          PIVOT is CHARACTER*1 */
/* >          Specifies the plane for which P(k) is a plane rotation */
/* >          matrix. */
/* >          = 'V':  Variable pivot, the plane (k,k+1) */
/* >          = 'T':  Top pivot, the plane (1,k+1) */
/* >          = 'B':  Bottom pivot, the plane (k,z) */
/* > \endverbatim */
/* > */
/* > \param[in] DIRECT */
/* > \verbatim */
/* >          DIRECT is CHARACTER*1 */
/* >          Specifies whether P is a forward or backward sequence of */
/* >          plane rotations. */
/* >          = 'F':  Forward, P = P(z-1)*...*P(2)*P(1) */
/* >          = 'B':  Backward, P = P(1)*P(2)*...*P(z-1) */
/* > \endverbatim */
/* > */
/* > \param[in] M */
/* > \verbatim */
/* >          M is INTEGER */
/* >          The number of rows of the matrix A.  If m <= 1, an immediate */
/* >          return is effected. */
/* > \endverbatim */
/* > */
/* > \param[in] N */
/* > \verbatim */
/* >          N is INTEGER */
/* >          The number of columns of the matrix A.  If n <= 1, an */
/* >          immediate return is effected. */
/* > \endverbatim */
/* > */
/* > \param[in] C */
/* > \verbatim */
/* >          C is DOUBLE PRECISION array, dimension */
/* >                  (M-1) if SIDE = 'L' */
/* >                  (N-1) if SIDE = 'R' */
/* >          The cosines c(k) of the plane rotations. */
/* > \endverbatim */
/* > */
/* > \param[in] S */
/* > \verbatim */
/* >          S is DOUBLE PRECISION array, dimension */
/* >                  (M-1) if SIDE = 'L' */
/* >                  (N-1) if SIDE = 'R' */
/* >          The sines s(k) of the plane rotations.  The 2-by-2 plane */
/* >          rotation part of the matrix P(k), R(k), has the form */
/* >          R(k) = (  c(k)  s(k) ) */
/* >                 ( -s(k)  c(k) ). */
/* > \endverbatim */
/* > */
/* > \param[in,out] A */
/* > \verbatim */
/* >          A is COMPLEX*16 array, dimension (LDA,N) */
/* >          The M-by-N matrix A.  On exit, A is overwritten by P*A if */
/* >          SIDE = 'R' or by A*P**T if SIDE = 'L'. */
/* > \endverbatim */
/* > */
/* > \param[in] LDA */
/* > \verbatim */
/* >          LDA is INTEGER */
/* >          The leading dimension of the array A.  LDA >= max(1,M). */
/* > \endverbatim */

/*  Authors: */
/*  ======== */

/* > \author Univ. of Tennessee */
/* > \author Univ. of California Berkeley */
/* > \author Univ. of Colorado Denver */
/* > \author NAG Ltd. */

/* > \ingroup complex16OTHERauxiliary */

/*  ===================================================================== */
/* Subroutine */ int zlasr_(char *side, char *pivot, char *direct, integer *m,
         integer *n, doublereal *c__, doublereal *s, doublecomplex *a,
        integer *lda, ftnlen side_len, ftnlen pivot_len, ftnlen direct_len)
{
    /* System generated locals */
    integer a_dim1, a_offset, i__1, i__2, i__3, i__4;
    doublecomplex z__1, z__2, z__3;

    /* Local variables */
    integer i__, j, info;
    doublecomplex temp;
    extern logical lsame_(char *, char *, ftnlen, ftnlen);
    doublereal ctemp, stemp;
    extern /* Subroutine */ int xerbla_(char *, integer *, ftnlen);


/*  -- LAPACK auxiliary routine -- */
/*  -- LAPACK is a software package provided by Univ. of Tennessee,    -- */
/*  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- */

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

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

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

/*     Test the input parameters */

    /* Parameter adjustments */
    --c__;
    --s;
    a_dim1 = *lda;
    a_offset = 1 + a_dim1;
    a -= a_offset;

    /* Function Body */
    info = 0;
    if (! (lsame_(side, (char *)"L", (ftnlen)1, (ftnlen)1) || lsame_(side, (char *)"R", (
            ftnlen)1, (ftnlen)1))) {
        info = 1;
    } else if (! (lsame_(pivot, (char *)"V", (ftnlen)1, (ftnlen)1) || lsame_(pivot,
            (char *)"T", (ftnlen)1, (ftnlen)1) || lsame_(pivot, (char *)"B", (ftnlen)1, (
            ftnlen)1))) {
        info = 2;
    } else if (! (lsame_(direct, (char *)"F", (ftnlen)1, (ftnlen)1) || lsame_(direct,
            (char *)"B", (ftnlen)1, (ftnlen)1))) {
        info = 3;
    } else if (*m < 0) {
        info = 4;
    } else if (*n < 0) {
        info = 5;
    } else if (*lda < max(1,*m)) {
        info = 9;
    }
    if (info != 0) {
        xerbla_((char *)"ZLASR ", &info, (ftnlen)6);
        return 0;
    }

/*     Quick return if possible */

    if (*m == 0 || *n == 0) {
        return 0;
    }
    if (lsame_(side, (char *)"L", (ftnlen)1, (ftnlen)1)) {

/*        Form  P * A */

        if (lsame_(pivot, (char *)"V", (ftnlen)1, (ftnlen)1)) {
            if (lsame_(direct, (char *)"F", (ftnlen)1, (ftnlen)1)) {
                i__1 = *m - 1;
                for (j = 1; j <= i__1; ++j) {
                    ctemp = c__[j];
                    stemp = s[j];
                    if (ctemp != 1. || stemp != 0.) {
                        i__2 = *n;
                        for (i__ = 1; i__ <= i__2; ++i__) {
                            i__3 = j + 1 + i__ * a_dim1;
                            temp.r = a[i__3].r, temp.i = a[i__3].i;
                            i__3 = j + 1 + i__ * a_dim1;
                            z__2.r = ctemp * temp.r, z__2.i = ctemp * temp.i;
                            i__4 = j + i__ * a_dim1;
                            z__3.r = stemp * a[i__4].r, z__3.i = stemp * a[
                                    i__4].i;
                            z__1.r = z__2.r - z__3.r, z__1.i = z__2.i -
                                    z__3.i;
                            a[i__3].r = z__1.r, a[i__3].i = z__1.i;
                            i__3 = j + i__ * a_dim1;
                            z__2.r = stemp * temp.r, z__2.i = stemp * temp.i;
                            i__4 = j + i__ * a_dim1;
                            z__3.r = ctemp * a[i__4].r, z__3.i = ctemp * a[
                                    i__4].i;
                            z__1.r = z__2.r + z__3.r, z__1.i = z__2.i +
                                    z__3.i;
                            a[i__3].r = z__1.r, a[i__3].i = z__1.i;
/* L10: */
                        }
                    }
/* L20: */
                }
            } else if (lsame_(direct, (char *)"B", (ftnlen)1, (ftnlen)1)) {
                for (j = *m - 1; j >= 1; --j) {
                    ctemp = c__[j];
                    stemp = s[j];
                    if (ctemp != 1. || stemp != 0.) {
                        i__1 = *n;
                        for (i__ = 1; i__ <= i__1; ++i__) {
                            i__2 = j + 1 + i__ * a_dim1;
                            temp.r = a[i__2].r, temp.i = a[i__2].i;
                            i__2 = j + 1 + i__ * a_dim1;
                            z__2.r = ctemp * temp.r, z__2.i = ctemp * temp.i;
                            i__3 = j + i__ * a_dim1;
                            z__3.r = stemp * a[i__3].r, z__3.i = stemp * a[
                                    i__3].i;
                            z__1.r = z__2.r - z__3.r, z__1.i = z__2.i -
                                    z__3.i;
                            a[i__2].r = z__1.r, a[i__2].i = z__1.i;
                            i__2 = j + i__ * a_dim1;
                            z__2.r = stemp * temp.r, z__2.i = stemp * temp.i;
                            i__3 = j + i__ * a_dim1;
                            z__3.r = ctemp * a[i__3].r, z__3.i = ctemp * a[
                                    i__3].i;
                            z__1.r = z__2.r + z__3.r, z__1.i = z__2.i +
                                    z__3.i;
                            a[i__2].r = z__1.r, a[i__2].i = z__1.i;
/* L30: */
                        }
                    }
/* L40: */
                }
            }
        } else if (lsame_(pivot, (char *)"T", (ftnlen)1, (ftnlen)1)) {
            if (lsame_(direct, (char *)"F", (ftnlen)1, (ftnlen)1)) {
                i__1 = *m;
                for (j = 2; j <= i__1; ++j) {
                    ctemp = c__[j - 1];
                    stemp = s[j - 1];
                    if (ctemp != 1. || stemp != 0.) {
                        i__2 = *n;
                        for (i__ = 1; i__ <= i__2; ++i__) {
                            i__3 = j + i__ * a_dim1;
                            temp.r = a[i__3].r, temp.i = a[i__3].i;
                            i__3 = j + i__ * a_dim1;
                            z__2.r = ctemp * temp.r, z__2.i = ctemp * temp.i;
                            i__4 = i__ * a_dim1 + 1;
                            z__3.r = stemp * a[i__4].r, z__3.i = stemp * a[
                                    i__4].i;
                            z__1.r = z__2.r - z__3.r, z__1.i = z__2.i -
                                    z__3.i;
                            a[i__3].r = z__1.r, a[i__3].i = z__1.i;
                            i__3 = i__ * a_dim1 + 1;
                            z__2.r = stemp * temp.r, z__2.i = stemp * temp.i;
                            i__4 = i__ * a_dim1 + 1;
                            z__3.r = ctemp * a[i__4].r, z__3.i = ctemp * a[
                                    i__4].i;
                            z__1.r = z__2.r + z__3.r, z__1.i = z__2.i +
                                    z__3.i;
                            a[i__3].r = z__1.r, a[i__3].i = z__1.i;
/* L50: */
                        }
                    }
/* L60: */
                }
            } else if (lsame_(direct, (char *)"B", (ftnlen)1, (ftnlen)1)) {
                for (j = *m; j >= 2; --j) {
                    ctemp = c__[j - 1];
                    stemp = s[j - 1];
                    if (ctemp != 1. || stemp != 0.) {
                        i__1 = *n;
                        for (i__ = 1; i__ <= i__1; ++i__) {
                            i__2 = j + i__ * a_dim1;
                            temp.r = a[i__2].r, temp.i = a[i__2].i;
                            i__2 = j + i__ * a_dim1;
                            z__2.r = ctemp * temp.r, z__2.i = ctemp * temp.i;
                            i__3 = i__ * a_dim1 + 1;
                            z__3.r = stemp * a[i__3].r, z__3.i = stemp * a[
                                    i__3].i;
                            z__1.r = z__2.r - z__3.r, z__1.i = z__2.i -
                                    z__3.i;
                            a[i__2].r = z__1.r, a[i__2].i = z__1.i;
                            i__2 = i__ * a_dim1 + 1;
                            z__2.r = stemp * temp.r, z__2.i = stemp * temp.i;
                            i__3 = i__ * a_dim1 + 1;
                            z__3.r = ctemp * a[i__3].r, z__3.i = ctemp * a[
                                    i__3].i;
                            z__1.r = z__2.r + z__3.r, z__1.i = z__2.i +
                                    z__3.i;
                            a[i__2].r = z__1.r, a[i__2].i = z__1.i;
/* L70: */
                        }
                    }
/* L80: */
                }
            }
        } else if (lsame_(pivot, (char *)"B", (ftnlen)1, (ftnlen)1)) {
            if (lsame_(direct, (char *)"F", (ftnlen)1, (ftnlen)1)) {
                i__1 = *m - 1;
                for (j = 1; j <= i__1; ++j) {
                    ctemp = c__[j];
                    stemp = s[j];
                    if (ctemp != 1. || stemp != 0.) {
                        i__2 = *n;
                        for (i__ = 1; i__ <= i__2; ++i__) {
                            i__3 = j + i__ * a_dim1;
                            temp.r = a[i__3].r, temp.i = a[i__3].i;
                            i__3 = j + i__ * a_dim1;
                            i__4 = *m + i__ * a_dim1;
                            z__2.r = stemp * a[i__4].r, z__2.i = stemp * a[
                                    i__4].i;
                            z__3.r = ctemp * temp.r, z__3.i = ctemp * temp.i;
                            z__1.r = z__2.r + z__3.r, z__1.i = z__2.i +
                                    z__3.i;
                            a[i__3].r = z__1.r, a[i__3].i = z__1.i;
                            i__3 = *m + i__ * a_dim1;
                            i__4 = *m + i__ * a_dim1;
                            z__2.r = ctemp * a[i__4].r, z__2.i = ctemp * a[
                                    i__4].i;
                            z__3.r = stemp * temp.r, z__3.i = stemp * temp.i;
                            z__1.r = z__2.r - z__3.r, z__1.i = z__2.i -
                                    z__3.i;
                            a[i__3].r = z__1.r, a[i__3].i = z__1.i;
/* L90: */
                        }
                    }
/* L100: */
                }
            } else if (lsame_(direct, (char *)"B", (ftnlen)1, (ftnlen)1)) {
                for (j = *m - 1; j >= 1; --j) {
                    ctemp = c__[j];
                    stemp = s[j];
                    if (ctemp != 1. || stemp != 0.) {
                        i__1 = *n;
                        for (i__ = 1; i__ <= i__1; ++i__) {
                            i__2 = j + i__ * a_dim1;
                            temp.r = a[i__2].r, temp.i = a[i__2].i;
                            i__2 = j + i__ * a_dim1;
                            i__3 = *m + i__ * a_dim1;
                            z__2.r = stemp * a[i__3].r, z__2.i = stemp * a[
                                    i__3].i;
                            z__3.r = ctemp * temp.r, z__3.i = ctemp * temp.i;
                            z__1.r = z__2.r + z__3.r, z__1.i = z__2.i +
                                    z__3.i;
                            a[i__2].r = z__1.r, a[i__2].i = z__1.i;
                            i__2 = *m + i__ * a_dim1;
                            i__3 = *m + i__ * a_dim1;
                            z__2.r = ctemp * a[i__3].r, z__2.i = ctemp * a[
                                    i__3].i;
                            z__3.r = stemp * temp.r, z__3.i = stemp * temp.i;
                            z__1.r = z__2.r - z__3.r, z__1.i = z__2.i -
                                    z__3.i;
                            a[i__2].r = z__1.r, a[i__2].i = z__1.i;
/* L110: */
                        }
                    }
/* L120: */
                }
            }
        }
    } else if (lsame_(side, (char *)"R", (ftnlen)1, (ftnlen)1)) {

/*        Form A * P**T */

        if (lsame_(pivot, (char *)"V", (ftnlen)1, (ftnlen)1)) {
            if (lsame_(direct, (char *)"F", (ftnlen)1, (ftnlen)1)) {
                i__1 = *n - 1;
                for (j = 1; j <= i__1; ++j) {
                    ctemp = c__[j];
                    stemp = s[j];
                    if (ctemp != 1. || stemp != 0.) {
                        i__2 = *m;
                        for (i__ = 1; i__ <= i__2; ++i__) {
                            i__3 = i__ + (j + 1) * a_dim1;
                            temp.r = a[i__3].r, temp.i = a[i__3].i;
                            i__3 = i__ + (j + 1) * a_dim1;
                            z__2.r = ctemp * temp.r, z__2.i = ctemp * temp.i;
                            i__4 = i__ + j * a_dim1;
                            z__3.r = stemp * a[i__4].r, z__3.i = stemp * a[
                                    i__4].i;
                            z__1.r = z__2.r - z__3.r, z__1.i = z__2.i -
                                    z__3.i;
                            a[i__3].r = z__1.r, a[i__3].i = z__1.i;
                            i__3 = i__ + j * a_dim1;
                            z__2.r = stemp * temp.r, z__2.i = stemp * temp.i;
                            i__4 = i__ + j * a_dim1;
                            z__3.r = ctemp * a[i__4].r, z__3.i = ctemp * a[
                                    i__4].i;
                            z__1.r = z__2.r + z__3.r, z__1.i = z__2.i +
                                    z__3.i;
                            a[i__3].r = z__1.r, a[i__3].i = z__1.i;
/* L130: */
                        }
                    }
/* L140: */
                }
            } else if (lsame_(direct, (char *)"B", (ftnlen)1, (ftnlen)1)) {
                for (j = *n - 1; j >= 1; --j) {
                    ctemp = c__[j];
                    stemp = s[j];
                    if (ctemp != 1. || stemp != 0.) {
                        i__1 = *m;
                        for (i__ = 1; i__ <= i__1; ++i__) {
                            i__2 = i__ + (j + 1) * a_dim1;
                            temp.r = a[i__2].r, temp.i = a[i__2].i;
                            i__2 = i__ + (j + 1) * a_dim1;
                            z__2.r = ctemp * temp.r, z__2.i = ctemp * temp.i;
                            i__3 = i__ + j * a_dim1;
                            z__3.r = stemp * a[i__3].r, z__3.i = stemp * a[
                                    i__3].i;
                            z__1.r = z__2.r - z__3.r, z__1.i = z__2.i -
                                    z__3.i;
                            a[i__2].r = z__1.r, a[i__2].i = z__1.i;
                            i__2 = i__ + j * a_dim1;
                            z__2.r = stemp * temp.r, z__2.i = stemp * temp.i;
                            i__3 = i__ + j * a_dim1;
                            z__3.r = ctemp * a[i__3].r, z__3.i = ctemp * a[
                                    i__3].i;
                            z__1.r = z__2.r + z__3.r, z__1.i = z__2.i +
                                    z__3.i;
                            a[i__2].r = z__1.r, a[i__2].i = z__1.i;
/* L150: */
                        }
                    }
/* L160: */
                }
            }
        } else if (lsame_(pivot, (char *)"T", (ftnlen)1, (ftnlen)1)) {
            if (lsame_(direct, (char *)"F", (ftnlen)1, (ftnlen)1)) {
                i__1 = *n;
                for (j = 2; j <= i__1; ++j) {
                    ctemp = c__[j - 1];
                    stemp = s[j - 1];
                    if (ctemp != 1. || stemp != 0.) {
                        i__2 = *m;
                        for (i__ = 1; i__ <= i__2; ++i__) {
                            i__3 = i__ + j * a_dim1;
                            temp.r = a[i__3].r, temp.i = a[i__3].i;
                            i__3 = i__ + j * a_dim1;
                            z__2.r = ctemp * temp.r, z__2.i = ctemp * temp.i;
                            i__4 = i__ + a_dim1;
                            z__3.r = stemp * a[i__4].r, z__3.i = stemp * a[
                                    i__4].i;
                            z__1.r = z__2.r - z__3.r, z__1.i = z__2.i -
                                    z__3.i;
                            a[i__3].r = z__1.r, a[i__3].i = z__1.i;
                            i__3 = i__ + a_dim1;
                            z__2.r = stemp * temp.r, z__2.i = stemp * temp.i;
                            i__4 = i__ + a_dim1;
                            z__3.r = ctemp * a[i__4].r, z__3.i = ctemp * a[
                                    i__4].i;
                            z__1.r = z__2.r + z__3.r, z__1.i = z__2.i +
                                    z__3.i;
                            a[i__3].r = z__1.r, a[i__3].i = z__1.i;
/* L170: */
                        }
                    }
/* L180: */
                }
            } else if (lsame_(direct, (char *)"B", (ftnlen)1, (ftnlen)1)) {
                for (j = *n; j >= 2; --j) {
                    ctemp = c__[j - 1];
                    stemp = s[j - 1];
                    if (ctemp != 1. || stemp != 0.) {
                        i__1 = *m;
                        for (i__ = 1; i__ <= i__1; ++i__) {
                            i__2 = i__ + j * a_dim1;
                            temp.r = a[i__2].r, temp.i = a[i__2].i;
                            i__2 = i__ + j * a_dim1;
                            z__2.r = ctemp * temp.r, z__2.i = ctemp * temp.i;
                            i__3 = i__ + a_dim1;
                            z__3.r = stemp * a[i__3].r, z__3.i = stemp * a[
                                    i__3].i;
                            z__1.r = z__2.r - z__3.r, z__1.i = z__2.i -
                                    z__3.i;
                            a[i__2].r = z__1.r, a[i__2].i = z__1.i;
                            i__2 = i__ + a_dim1;
                            z__2.r = stemp * temp.r, z__2.i = stemp * temp.i;
                            i__3 = i__ + a_dim1;
                            z__3.r = ctemp * a[i__3].r, z__3.i = ctemp * a[
                                    i__3].i;
                            z__1.r = z__2.r + z__3.r, z__1.i = z__2.i +
                                    z__3.i;
                            a[i__2].r = z__1.r, a[i__2].i = z__1.i;
/* L190: */
                        }
                    }
/* L200: */
                }
            }
        } else if (lsame_(pivot, (char *)"B", (ftnlen)1, (ftnlen)1)) {
            if (lsame_(direct, (char *)"F", (ftnlen)1, (ftnlen)1)) {
                i__1 = *n - 1;
                for (j = 1; j <= i__1; ++j) {
                    ctemp = c__[j];
                    stemp = s[j];
                    if (ctemp != 1. || stemp != 0.) {
                        i__2 = *m;
                        for (i__ = 1; i__ <= i__2; ++i__) {
                            i__3 = i__ + j * a_dim1;
                            temp.r = a[i__3].r, temp.i = a[i__3].i;
                            i__3 = i__ + j * a_dim1;
                            i__4 = i__ + *n * a_dim1;
                            z__2.r = stemp * a[i__4].r, z__2.i = stemp * a[
                                    i__4].i;
                            z__3.r = ctemp * temp.r, z__3.i = ctemp * temp.i;
                            z__1.r = z__2.r + z__3.r, z__1.i = z__2.i +
                                    z__3.i;
                            a[i__3].r = z__1.r, a[i__3].i = z__1.i;
                            i__3 = i__ + *n * a_dim1;
                            i__4 = i__ + *n * a_dim1;
                            z__2.r = ctemp * a[i__4].r, z__2.i = ctemp * a[
                                    i__4].i;
                            z__3.r = stemp * temp.r, z__3.i = stemp * temp.i;
                            z__1.r = z__2.r - z__3.r, z__1.i = z__2.i -
                                    z__3.i;
                            a[i__3].r = z__1.r, a[i__3].i = z__1.i;
/* L210: */
                        }
                    }
/* L220: */
                }
            } else if (lsame_(direct, (char *)"B", (ftnlen)1, (ftnlen)1)) {
                for (j = *n - 1; j >= 1; --j) {
                    ctemp = c__[j];
                    stemp = s[j];
                    if (ctemp != 1. || stemp != 0.) {
                        i__1 = *m;
                        for (i__ = 1; i__ <= i__1; ++i__) {
                            i__2 = i__ + j * a_dim1;
                            temp.r = a[i__2].r, temp.i = a[i__2].i;
                            i__2 = i__ + j * a_dim1;
                            i__3 = i__ + *n * a_dim1;
                            z__2.r = stemp * a[i__3].r, z__2.i = stemp * a[
                                    i__3].i;
                            z__3.r = ctemp * temp.r, z__3.i = ctemp * temp.i;
                            z__1.r = z__2.r + z__3.r, z__1.i = z__2.i +
                                    z__3.i;
                            a[i__2].r = z__1.r, a[i__2].i = z__1.i;
                            i__2 = i__ + *n * a_dim1;
                            i__3 = i__ + *n * a_dim1;
                            z__2.r = ctemp * a[i__3].r, z__2.i = ctemp * a[
                                    i__3].i;
                            z__3.r = stemp * temp.r, z__3.i = stemp * temp.i;
                            z__1.r = z__2.r - z__3.r, z__1.i = z__2.i -
                                    z__3.i;
                            a[i__2].r = z__1.r, a[i__2].i = z__1.i;
/* L230: */
                        }
                    }
/* L240: */
                }
            }
        }
    }

    return 0;

/*     End of ZLASR */

} /* zlasr_ */

#ifdef __cplusplus
        }
#endif