:relfileprefix: ../../../../
[#boost-urls-grammar-recycled_ptr-2constructor-0ac]

== 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]]::recycled_ptr


Constructor


=== Synopsis

Declared in header `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/grammar/recycled.hpp#L258[boost/url/grammar/recycled.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
----
recycled_ptr(
    xref:boost/urls/grammar/recycled.adoc[recycled]<T>& bin,
    std::nullptr_t) noexcept;
----

=== Description


After construction, this is empty and
refers to the specified recycle bin.
[,cpp]
----
static recycled< std::string > bin;

recycled_ptr< std::string > ps( bin, nullptr );

// Acquire a string and put it into a known state
ps->acquire();
ps->clear();
----
[,cpp]
----
&this->bin() == &bin && this->empty()
----

=== Throws nothing.





=== Parameters

|===
| Name | Description 

| *bin*
| 
The recycle bin to use

|===




=== See Also


xref:boost/urls/grammar/recycled_ptr/acquire.adoc[acquire]
,
xref:boost/urls/grammar/recycled.adoc[recycled]
,
xref:boost/urls/grammar/recycled_ptr/release.adoc[release]
.