Synopsis

Declared in header </boost/url/grammar/variant_rule.hpp#L117[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;