Hchange Subroutine

private subroutine Hchange(Ha, Hj, Hk, N, Nk, k, v, jv, hops)

Arguments

Type IntentOptional Attributes Name
real(kind=rp), intent(inout) :: Ha(N)
integer(kind=ip), intent(inout) :: Hj(N)
integer(kind=ip), intent(inout) :: Hk(Nk)
integer(kind=ip), intent(in) :: N
integer(kind=ip), intent(in) :: Nk
integer(kind=ip), intent(in) :: k
real(kind=rp), intent(in) :: v
integer(kind=ip), intent(in) :: jv
integer(kind=ip), intent(out) :: hops

Calls

proc~~hchange~~CallsGraph proc~hchange lusol::Hchange proc~hdown lusol::Hdown proc~hchange->proc~hdown proc~hup lusol::Hup proc~hchange->proc~hup

Called by

proc~~hchange~~CalledByGraph proc~hchange lusol::Hchange proc~hdelete lusol::Hdelete proc~hdelete->proc~hchange proc~lu1fad lusol::lu1fad proc~lu1fad->proc~hchange proc~lu1fad->proc~hdelete proc~lu1fac lusol::lu1fac proc~lu1fac->proc~lu1fad proc~solve lusol_ez_module::solve proc~solve->proc~lu1fac proc~test_1 main::test_1 proc~test_1->proc~solve proc~test_2 main::test_2 proc~test_2->proc~solve program~main~2 main program~main~2->proc~test_1 program~main~2->proc~test_2

Source Code

  subroutine Hchange( Ha, Hj, Hk, N, Nk, k, v, jv, hops )

    integer(ip),   intent(in)    :: N, Nk, k, jv
    real(rp),      intent(in)    :: v
    integer(ip),   intent(inout) :: Hj(N), Hk(Nk)
    real(rp),      intent(inout) :: Ha(N)
    integer(ip),   intent(out)   :: hops

    !==================================================================
    ! Hchange changes Ha(k) to v in heap of length N.
    !
    ! 01 May 2002: Need Nk for length of Hk.
    ! 07 May 2002: Protect input parameters N, Nk, k.
    ! 07 May 2002: Current version of Hchange.
    ! 12 Dec 2011: First f90 version.
    !==================================================================

    integer(ip) :: kx, Nx, Nkx
    real(rp)    :: v1

    Nx     = N
    Nkx    = Nk
    kx     = k
    v1     = Ha(k)
    Ha(k)  = v
    Hj(k)  = jv
    Hk(jv) = k
    if (v1 < v) then
       call Hup   ( Ha, Hj, Hk, Nx, Nkx, kx, hops )
    else
       call Hdown ( Ha, Hj, Hk, Nx, Nkx, kx, hops )
    end if

  end subroutine Hchange