!>
!> 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) ) = ( r(i) )
!>    ( -conjg(s(i))  c(i) ) ( y(i) ) = (   0  )
!>
!>    where c(i)**2 + ABS(s(i))**2 = 1
!>
!> The following conventions are used (these are the same as in ZLARTG,
!> but differ from the BLAS1 routine ZROTG):
!>    If y(i)=0, then c(i)=1 and s(i)=0.
!>    If x(i)=0, then c(i)=0 and s(i) is chosen so that r(i) is real.
!> 

N

!>          N is INTEGER
!>          The number of plane rotations to be generated.
!> 

X

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

INCX

!>          INCX is INTEGER
!>          The increment between elements of X. INCX > 0.
!> 

Y

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

INCY

!>          INCY is INTEGER
!>          The increment between elements of Y. INCY > 0.
!> 

C

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

INCC

!>          INCC is INTEGER
!>          The increment between elements of C. INCC > 0.
!> 

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

!>
!>  6-6-96 - Modified with a new algorithm by W. Kahan and J. Demmel
!>
!>  This version has a few statements commented out for thread safety
!>  (machine parameters are computed on each entry). 10 feb 03, SJH.
!>