:relfileprefix: ../../../../
[#boost-urls-grammar-recycled_ptr-empty]

= xref:boost.adoc[pass:[boost]]::xref:boost/urls.adoc[pass:[urls]]::xref:boost/urls/grammar.adoc[pass:[grammar]]::xref:boost/urls/grammar/recycled_ptr.adoc[pass:[recycled_ptr]]::empty


Return true if this does not reference an object


== Synopsis

Declared in header `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/grammar/recycled.hpp#L403[boost/url/grammar/recycled.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
----
bool
empty() const noexcept;
----

== Description


=== Exception Safety

Throws nothing.








