sset, dset, cset, zset 

Set all elements of a vector to a scalar

FORMAT

  {S,D,C,Z}SET (n, alpha, x, incx)

Arguments

  n                   integer*4
                      On entry, the number of elements in the vector.
                      On exit, n is unchanged.

  alpha               real*4 | real*8 | complex*8 | complex*16
                      On entry, the scalar alpha value.
                      On exit, alpha is unchanged.

  x                   real*4 | real*8 | complex*8 | complex*16
                      On entry, a one-dimensional array X of length at least
                      (1+(n-1)*|incx|), containing the elements of the vector
                      x.

                      On exit, if n<=0, x is unchanged. If n > 0, x is
                      overwritten by the updated x.

  incx                integer*4
                      On entry, the increment for the array X.
                      If incx > 0, vector x is stored forward in the array,
                      so that x(i) is stored in location X(1+(i-1)*incx).
                      If incx < 0, vector x is stored backward in the array,
                      so that x(i) is stored in location X(1+(n-i)*|incx|).
                      If incx = 0, only the first element is accessed.
                      On exit, incx is unchanged.

Description

  The _SET subroutines change all elements of a vector to the same scalar
  value; each element x(i) is replaced with alpha.  x(i) = alpha
  If incx < 0, the result is identical to using |incx|.  If incx = 0, the
  computation is a time-consuming way of setting x(1) = alpha.

Example

  INTEGER*4 N, INCX
  REAL*4 X(200), alpha
  INCX = 2
  alpha = 2.0
  N = 50
  CALL SSET(N,alpha,X,INCX)

  This FORTRAN example shows how to set all elements of the vector x equal to
  2.0.