Compare two string views for less than
<include/boost/url/grammar/string_view_base.hpp>
template<
class S0,
class S1>
friend
constexpr
bool
operator<(
S0 const& s0,
S1 const& s1) noexcept;
This function is only enabled if both arguments are convertible to `core::string_view` and at least one of the arguments is derived from `string_view_base`.