18       template <
typename ExpSet>
    22         const auto& e = exp->as<ExpSet>();
    23         auto rs = e.valueset();
 
value_impl< detail::expression_tag > expression
 
identities identities_of(const expression &exp)
Bridge. 
 
identities(ids_t id=deflt)
 
::vcsn::rat::identities identities
Sets of identities on expressions.