[#bsl-owner_less-0f-operator_call-02]
= xref:bsl.adoc[bsl]::xref:bsl/owner_less-0f.adoc[owner&lowbar;less&lt;weak&lowbar;ptr&lt;ELEMENT&lowbar;TYPE&gt;&gt;]::operator()
:relfileprefix: ../../
:mrdocs:

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
operator()(
    xref:bsl/shared_ptr-0a.adoc[shared&lowbar;ptr&lt;ELEMENT&lowbar;TYPE&gt;] const& a,
    xref:bsl/weak_ptr-0d.adoc[weak&lowbar;ptr&lt;ELEMENT&lowbar;TYPE&gt;] const& b) const noexcept;
----


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