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