pic_zscal Subroutine

private subroutine pic_zscal(x, alpha)

interface for double precision complex scaling

Arguments

Type IntentOptional Attributes Name
complex(kind=dp), intent(inout) :: x(:)
complex(kind=dp), intent(in), optional :: alpha

Calls

proc~~pic_zscal~~CallsGraph proc~pic_zscal pic_zscal interface~blas_scal blas_scal proc~pic_zscal->interface~blas_scal

Called by

proc~~pic_zscal~~CalledByGraph proc~pic_zscal pic_zscal interface~pic_scal pic_scal interface~pic_scal->proc~pic_zscal

Variables

Type Visibility Attributes Name Initial
integer(kind=default_int), private :: incx
complex(kind=dp), private :: l_alpha
integer(kind=default_int), private :: n

Source Code

   subroutine pic_zscal(x, alpha)
      !! interface for double precision complex scaling
      complex(dp), intent(inout) :: x(:)
      complex(dp), intent(in), optional :: alpha
      complex(dp) :: l_alpha
      integer(default_int) :: n, incx
      n = size(x)
      incx = 1
      if (present(alpha)) then
         l_alpha = alpha
      else
         l_alpha = 1.0_dp
      end if
      call blas_scal(n, l_alpha, x, incx)
   end subroutine pic_zscal