Synopsis
Declared in header </boost/url/grammar/variant_rule.hpp#L94[boost/url/grammar/variant_rule.hpp,window=blank_]>
template<
class R0_,
class... Rn_>
constexpr
variant_rule_t<R0_, Rn_...>
variant_rule(
const R0_& r0,
const Rn_&... rn) noexcept;