[#bsl-owner_less-07-operator_call-07]
= xref:bsl.adoc[bsl]::xref:bsl/owner_less-07.adoc[owner_less<shared_ptr<ELEMENT_TYPE>>]::operator()
:relfileprefix: ../../
:mrdocs:

owner_less& operator=(const owner_less& rhs) = default;

== Synopsis

Declared in `<bslstl_ownerless.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
operator()(
    xref:bsl/shared_ptr-0a.adoc[shared_ptr<ELEMENT_TYPE>] const& a,
    xref:bsl/shared_ptr-0a.adoc[shared_ptr<ELEMENT_TYPE>] const& b) const noexcept;
----


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