boost::urls::grammar::variant_rule

template<
    class R0_,
    class... Rn_>
constexpr
variant_rule_t<R0_, Rn_...>
variant_rule(
    R0_ const& r0,
    Rn_ const&... rn) noexcept;
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template<
    class R0,
    class... Rn>
constexpr
variant_rule_t<R0, Rn...>
variant_rule(
    R0 const& r0,
    Rn const&... rn) noexcept;
  » more...