zlasr.c

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/* zlasr.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"

/* Subroutine */ int zlasr_(char *side, char *pivot, char *direct, integer *m, 
         integer *n, doublereal *c__, doublereal *s, doublecomplex *a, 
        integer *lda)
{
    /* 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 *);
    doublereal ctemp, stemp;
    extern /* Subroutine */ int xerbla_(char *, integer *);


/*  -- LAPACK auxiliary routine (version 3.2) -- */
/*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
/*     November 2006 */

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

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

/*  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. */

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

/*  SIDE    (input) 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 */

/*  PIVOT   (input) 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) */

/*  DIRECT  (input) 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) */

/*  M       (input) INTEGER */
/*          The number of rows of the matrix A.  If m <= 1, an immediate */
/*          return is effected. */

/*  N       (input) INTEGER */
/*          The number of columns of the matrix A.  If n <= 1, an */
/*          immediate return is effected. */

/*  C       (input) DOUBLE PRECISION array, dimension */
/*                  (M-1) if SIDE = 'L' */
/*                  (N-1) if SIDE = 'R' */
/*          The cosines c(k) of the plane rotations. */

/*  S       (input) 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) ). */

/*  A       (input/output) 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'. */

/*  LDA     (input) INTEGER */
/*          The leading dimension of the array A.  LDA >= max(1,M). */

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

/*     .. 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, "L") || lsame_(side, "R"))) {
        info = 1;
    } else if (! (lsame_(pivot, "V") || lsame_(pivot, 
            "T") || lsame_(pivot, "B"))) {
        info = 2;
    } else if (! (lsame_(direct, "F") || lsame_(direct, 
            "B"))) {
        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_("ZLASR ", &info);
        return 0;
    }

/*     Quick return if possible */

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

/*        Form  P * A */

        if (lsame_(pivot, "V")) {
            if (lsame_(direct, "F")) {
                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, "B")) {
                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, "T")) {
            if (lsame_(direct, "F")) {
                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, "B")) {
                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, "B")) {
            if (lsame_(direct, "F")) {
                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, "B")) {
                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, "R")) {

/*        Form A * P' */

        if (lsame_(pivot, "V")) {
            if (lsame_(direct, "F")) {
                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, "B")) {
                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, "T")) {
            if (lsame_(direct, "F")) {
                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, "B")) {
                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, "B")) {
            if (lsame_(direct, "F")) {
                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, "B")) {
                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_ */