Synopsis

Declared in header </boost/url/grammar/charset.hpp#L197[boost/url/grammar/charset.hpp,window=blank_]>

template<class CharSet>
constexpr
enable_if<is_charset<CharSet>::value && !std::is_same<CharSet, detail::charset_ref<CharSet>>::value, charset_ref<CharSet>>::type
ref(const CharSet& cs) noexcept;