!!$ 
!!$              Parallel Sparse BLAS  version 3.4
!!$    (C) Copyright 2006, 2010, 2015
!!$                       Salvatore Filippone    University of Rome Tor Vergata
!!$                       Alfredo Buttari        CNRS-IRIT, Toulouse
!!$ 
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!!$  
!
! inrm2.f90
!
! A function formally similar to DNRM2 but on integers.
! Defined just to have a preprocessed version of vectors.
! Does it make sense?? Better change it to ABS, i.e. nrm1.
!  
!
function inrm2(n,x,incx) result(res)
  use psb_serial_mod
  implicit none 
  integer(psb_ipk_), intent(in) :: n,incx
  integer(psb_ipk_), intent(in) :: x(*)
  integer(psb_ipk_)  :: res

  integer(psb_ipk_) :: i, ix, iy

  res = izero
  
  if ((n<1).or.(incx<1)) return
    
  ix = 1 
  do i=1,n
    res = res + abs(x(ix))
    ix=ix+incx
  end do
end function inrm2