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NAME
     zlargv - generate a vector of complex plane  rotations  with
     real  cosines, determined by elements of the complex vectors
     x and y

SYNOPSIS
     SUBROUTINE ZLARGV( N, X, INCX, Y, INCY, C, INCC )

     INTEGER INCC, INCX, INCY, N

     DOUBLE PRECISION C( * )

     COMPLEX*16 X( * ), Y( * )



     #include <sunperf.h>

     void zlargv(int n, doublecomplex *zx, int  incx,  doublecom-
               plex *zy, int incy, double *dc, int incc) ;

PURPOSE
     ZLARGV generates a vector of complex  plane  rotations  with
     real  cosines, determined by elements of the complex vectors
     x and y.  For i = 1,2,...,n

        (        c(i)   s(i) ) ( x(i) ) = ( a(i) )
        ( -conjg(s(i))  c(i) ) ( y(i) ) = (   0  )


ARGUMENTS
     N         (input) INTEGER
               The number of plane rotations to be generated.

     X         (input/output) COMPLEX*16 array, dimension  (1+(N-
               1)*INCX)
               On  entry,  the  vector  x.   On  exit,  x(i)   is
               overwritten by a(i), for i = 1,...,n.

     INCX      (input) INTEGER
               The increment between elements of X. INCX > 0.

     Y         (input/output) COMPLEX*16 array, dimension  (1+(N-
               1)*INCY)
               On entry, the vector y.  On exit, the sines of the
               plane rotations.

     INCY      (input) INTEGER
               The increment between elements of Y. INCY > 0.

     C         (output) DOUBLE PRECISION array, dimension  (1+(N-
               1)*INCC)
               The cosines of the plane rotations.

     INCC      (input) INTEGER
               The increment between elements of C. INCC > 0.

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