:relfileprefix: ../../../../ [#boost-urls-grammar-string_view_base-empty] = xref:boost.adoc[pass:[boost]]::xref:boost/urls.adoc[pass:[urls]]::xref:boost/urls/grammar.adoc[pass:[grammar]]::xref:boost/urls/grammar/string_view_base.adoc[pass:[string_view_base]]::empty Return true if the string is empty == Synopsis Declared in header `` [source,cpp,subs="verbatim,macros,-callouts"] ---- constexpr bool empty() const noexcept; ---- == Description See `core::string_view::size`