The main documentation of the Initialized_Solver Procedure contains additional explanation of this code listing.
function Initialized_Solver (Solver) result(Initialized) ! Use associations. use Caesar_Flags_Module, only: initialized_flag ! Input variable. type(Solver_type), intent(in) :: Solver ! Solver to be checked. ! Output variable. type(logical) :: Initialized ! Initialized condition boolean. !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ! Verify requirements - none. ! Set initialized boolean. Initialized = Solver%Initialized == initialized_flag ! Verify guarantees - none. return end function Initialized_Solver