[#bsl-weak_ptr-0d-2constructor-0fa]
= xref:bsl.adoc[bsl]::xref:bsl/weak_ptr-0d.adoc[weak_ptr]::weak_ptr
:relfileprefix: ../../
:mrdocs:

Move‐construct a `weak_ptr` from a compatible `other`.

== Synopsis

Declared in `<bslstl_sharedptr.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class COMPATIBLE_TYPE>
weak_ptr(xref:bsl/weak_ptr-0d.adoc[weak_ptr<COMPATIBLE_TYPE>]&& other) noexcept;
----

== Description

Create a weak pointer that refers to the same object (if any) as the specified `other` weak pointer, and reset `other` to an empty state. Note that this operation does not involve any change to reference counts.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *other*
| compatible weak pointer to move from
|===


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