[#bsl-shared_ptr-0a-2constructor-00f]
= xref:bsl.adoc[bsl]::xref:bsl/shared_ptr-0a.adoc[shared&lowbar;ptr]::shared&lowbar;ptr
:relfileprefix: ../../
:mrdocs:

Create an empty shared pointer, i&period;e&period;, a shared pointer with no representation that does not refer to any object and has no deleter&period;

== Synopsis

Declared in `&lt;bslstl&lowbar;sharedptr&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
shared&lowbar;ptr(xref:bsl/nullptr_t-08.adoc[bsl::nullptr&lowbar;t]) noexcept;
----


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