constraint_eqn_033 Subroutine

   subroutine constraint_eqn_033(tmp_cc, tmp_con, tmp_err, tmp_symbol, tmp_units)
      !! Equation for TF coil operating/critical J upper limit (SCTF)
      !! author: P B Lloyd, CCFE, Culham Science Centre
      !! args : output structure : residual error; constraint value;
      !! residual error in physical units; output string; units string
      !! Equation for TF coil operating/critical J upper limit (SCTF)
      !! #=# tfcoil
      !! #=#=# fiooic, jwdgcrt
      !! and hence also optional here.
      !! Logic change during pre-factoring: err, symbol, units will be assigned only if present.
      !! fiooic : input real : f-value for TF coil operating current / critical
      !! jwdgcrt : input real : critical current density for winding pack (A/m2)
      !! jwptf : input real : winding pack current density (A/m2)
      use constraint_variables, only: fiooic
      use tfcoil_variables, only: jwdgcrt, jwptf
      implicit none
            real(dp), intent(out) :: tmp_cc
      real(dp), intent(out) :: tmp_con
      real(dp), intent(out) :: tmp_err
      character(len=1), intent(out) :: tmp_symbol
      character(len=10), intent(out) :: tmp_units

      if (fiooic > 0.7D0) call report_error(285)
      tmp_cc =  1.0D0 - fiooic * jwdgcrt/jwptf
      tmp_con = jwdgcrt * (1.0D0 - tmp_cc)
      tmp_err = jwptf * tmp_cc
      tmp_symbol = '<'
      tmp_units = 'A/m2'

   end subroutine constraint_eqn_033