:relfileprefix: ../../../ [#boost-urls-grammar-tuple_rule-00] = xref:boost.adoc[pass:[boost]]::xref:boost/urls.adoc[pass:[urls]]::xref:boost/urls/grammar.adoc[pass:[grammar]]::tuple_rule == Synopsis Declared in header `` [source,cpp,subs="verbatim,macros,-callouts"] ---- template< class R0_, class... Rn_> constexpr xref:boost/urls/grammar/tuple_rule_t.adoc[tuple_rule_t] tuple_rule( R0_ const& r0, Rn_ const&... rn) noexcept; ----