boost::urls::grammar::implementation_defined::optional_rule_t::optional_rule_t
Synopsis
Declared in header <boost/url/grammar/optional_rule.hpp>
constexpr
optional_rule_t(Rule const& r) noexcept;Declared in header <boost/url/grammar/optional_rule.hpp>
constexpr
optional_rule_t(Rule const& r) noexcept;