auto | operator() (Rng1 &&rng1, Rng2 &&rng2, C pred=C{}, P1 proj1=P1{}, P2 proj2=P2{}) const -> set_union_view< all_t< Rng1 >, all_t< Rng2 >, C, P1, P2 > requires viewable_range< Rng1 > &&input_range< Rng1 > &&viewable_range< Rng2 > &&input_range< Rng2 > &&common_with< range_value_t< Rng1 >, range_value_t< Rng2 >> &&common_reference_with< range_reference_t< Rng1 >, range_reference_t< Rng2 >> &&common_reference_with< range_rvalue_reference_t< Rng1 >, range_rvalue_reference_t< Rng2 >> &&indirect_relation< C, projected< iterator_t< Rng1 >, P1 >, projected< iterator_t< Rng2 >, P2 >> |