ringmoons_step_ring Interface

interface
public module subroutine ringmoons_step_ring(self, cb, dt, param, stepfail)

Type	Intent		Name
class(ringmoons_ring),	intent(inout)	::	self
class(ringmoons_cb),	intent(in)	::	cb
real(kind=DP),	intent(in)	::	dt
class(swiftest_parameters),	intent(in)	::	param
logical,	intent(out)	::	stepfail