Function clingo_sys::clingo_symbolic_atoms_is_external

pub unsafe extern "C" fn clingo_symbolic_atoms_is_external(
    atoms: *const clingo_symbolic_atoms_t, 
    iterator: clingo_symbolic_atom_iterator_t, 
    external: *mut bool
) -> bool

! Check whether an atom is external. ! ! An atom is external if it has been defined using an external directive and ! has not been released or defined by a rule. ! ! @param[in] atoms the target ! @param[in] iterator iterator to the atom ! @param[out] external whether the atom is a external ! @return whether the call was successful