[#bsl-function-0a-operator_assign-08]
= xref:bsl.adoc[bsl]::xref:bsl/function-0a.adoc[function]::operator=
:relfileprefix: ../../
:mrdocs:

Set this object to empty and return `*this`.

== Synopsis

Declared in `<bslstl_function.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/function-0a.adoc[bsl::function<PROTOTYPE>]&
operator=(xref:bsl/nullptr_t-08.adoc[nullptr_t] unused) noexcept;
----

== Return Value

reference providing modifiable access to this object

== Parameters

[cols="1,4"]
|===
| Name| Description
| *unused*
| null pointer literal selecting the empty state
|===


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