[#BloombergLP-bdlb-NullableValue-operator_assign-087]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/NullableValue.adoc[NullableValue]::operator=
:relfileprefix: ../../../
:mrdocs:

Assignment operators

== Synopses

Declared in `<bdlb_nullablevalue.h>`

Assign to this object the value of the specified `rhs`, and return a reference providing modifiable access to this object.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlb/NullableValue.adoc[NullableValue<TYPE>]&
xref:BloombergLP/bdlb/NullableValue/operator_assign-038.adoc[operator=](xref:BloombergLP/bdlb/NullableValue.adoc[NullableValue] const& rhs);
----

[.small]#xref:BloombergLP/bdlb/NullableValue/operator_assign-038.adoc[_» more..._]#

Assign to this object the value of the specified `rhs` object, and return a non‐`const` reference to this object.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bslstl/Optional_Base-05.adoc[Optional_Base<t_TYPE, t_USES_BSLMA_ALLOC>]&
xref:BloombergLP/bslstl/Optional_Base-05/operator_assign-05.adoc[operator=](xref:BloombergLP/bslstl/Optional_Base-05.adoc[Optional_Base] const& rhs);
----

[.small]#xref:BloombergLP/bslstl/Optional_Base-05/operator_assign-05.adoc[_» more..._]#

Assign to this object from the specified `rhs` nullable value.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class BDE_OTHER_TYPE>
xref:BloombergLP/bdlb/NullableValue.adoc[NullableValue<TYPE>]&
xref:BloombergLP/bdlb/NullableValue/operator_assign-00b.adoc[operator=](xref:BloombergLP/bdlb/NullableValue.adoc[NullableValue<BDE_OTHER_TYPE>] const& rhs);
----

[.small]#xref:BloombergLP/bdlb/NullableValue/operator_assign-00b.adoc[_» more..._]#

Assign a new value to this optional.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_ANY_TYPE>
constexpr
xref:bsl/optional-072.adoc[optional<t_TYPE>]&
xref:bsl/optional-072/operator_assign-08.adoc[operator=](xref:bsl/optional-072.adoc[optional<t_ANY_TYPE>] const& rhs);
----

[.small]#xref:bsl/optional-072/operator_assign-08.adoc[_» more..._]#

Assign a new value to this optional.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
xref:bsl/optional-072.adoc[optional<t_TYPE>]&
xref:bsl/optional-072/operator_assign-09.adoc[operator=](xref:bsl/nullopt_t.adoc[bsl::nullopt_t] nullopt) noexcept;
----

[.small]#xref:bsl/optional-072/operator_assign-09.adoc[_» more..._]#

Move‐assign the specified `rhs` to this object.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlb/NullableValue.adoc[NullableValue<TYPE>]&
xref:BloombergLP/bdlb/NullableValue/operator_assign-08f.adoc[operator=](xref:BloombergLP/bslmf/MovableRef.adoc[bslmf::MovableRef<NullableValue>] rhs);
----

[.small]#xref:BloombergLP/bdlb/NullableValue/operator_assign-08f.adoc[_» more..._]#

Move‐assign the specified `rhs` to this object.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlb/NullableValue.adoc[NullableValue<TYPE>]&
xref:BloombergLP/bdlb/NullableValue/operator_assign-0f.adoc[operator=](xref:BloombergLP/bslmf/MovableRef.adoc[bslmf::MovableRef<TYPE>] rhs);
----

[.small]#xref:BloombergLP/bdlb/NullableValue/operator_assign-0f.adoc[_» more..._]#

Assign a new value to this optional.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bslstl/Optional_Base-05.adoc[Optional_Base<t_TYPE, t_USES_BSLMA_ALLOC>]&
xref:BloombergLP/bslstl/Optional_Base-05/operator_assign-08.adoc[operator=](xref:BloombergLP/bslmf/MovableRef.adoc[BloombergLP::bslmf::MovableRef<Optional_Base>] rhs);
----

[.small]#xref:BloombergLP/bslstl/Optional_Base-05/operator_assign-08.adoc[_» more..._]#

Assign to this object the value of the specified `rhs`, and return a reference providing modifiable access to this object.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlb/NullableValue.adoc[NullableValue<TYPE>]&
xref:BloombergLP/bdlb/NullableValue/operator_assign-05f.adoc[operator=](TYPE const& rhs);
----

[.small]#xref:BloombergLP/bdlb/NullableValue/operator_assign-05f.adoc[_» more..._]#

Reset this object to the default constructed state (i.e., to have the null value), and return a reference providing modifiable access to this object.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlb/NullableValue.adoc[NullableValue<TYPE>]&
xref:BloombergLP/bdlb/NullableValue/operator_assign-07.adoc[operator=](xref:bsl/nullopt_t.adoc[bsl::nullopt_t] const& nullopt) noexcept;
----

[.small]#xref:BloombergLP/bdlb/NullableValue/operator_assign-07.adoc[_» more..._]#

Assign to this object by moving from the specified `rhs`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class BDE_OTHER_TYPE>
xref:BloombergLP/bdlb/NullableValue.adoc[NullableValue<TYPE>]&
xref:BloombergLP/bdlb/NullableValue/operator_assign-034.adoc[operator=](xref:BloombergLP/bslmf/MovableRef_Deduced.adoc[BloombergLP::bslmf::MovableRef_Deduced<NullableValue<BDE_OTHER_TYPE>>] rhs);
----

[.small]#xref:BloombergLP/bdlb/NullableValue/operator_assign-034.adoc[_» more..._]#

Assign a new value to this optional.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_ANY_TYPE>
constexpr
xref:bsl/optional-072.adoc[optional<t_TYPE>]&
xref:bsl/optional-072/operator_assign-0f.adoc[operator=](xref:BloombergLP/bslmf/MovableRef_Deduced.adoc[BloombergLP::bslmf::MovableRef_Deduced<optional<t_ANY_TYPE>>] rhs);
----

[.small]#xref:bsl/optional-072/operator_assign-0f.adoc[_» more..._]#

Assign to this object by moving from the specified `rhs` optional.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class BDE_OTHER_TYPE>
xref:BloombergLP/bdlb/NullableValue.adoc[NullableValue<TYPE>]&
xref:BloombergLP/bdlb/NullableValue/operator_assign-002.adoc[operator=](xref:BloombergLP/bslmf/MovableRef_Deduced.adoc[BloombergLP::bslmf::MovableRef_Deduced<bsl::optional<BDE_OTHER_TYPE>>] rhs)
requires bsl::is_convertible<BDE_OTHER_TYPE, TYPE>::value;
----

[.small]#xref:BloombergLP/bdlb/NullableValue/operator_assign-002.adoc[_» more..._]#

Assign to this object the specified `rhs` converted to `TYPE`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class BDE_OTHER_TYPE>
xref:BloombergLP/bdlb/NullableValue.adoc[NullableValue<TYPE>]&
xref:BloombergLP/bdlb/NullableValue/operator_assign-039.adoc[operator=](BDE_OTHER_TYPE const& rhs);
----

[.small]#xref:BloombergLP/bdlb/NullableValue/operator_assign-039.adoc[_» more..._]#

Assign to this object the value of the specified `rhs` optional.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class BDE_OTHER_TYPE>
xref:BloombergLP/bdlb/NullableValue.adoc[NullableValue<TYPE>]&
xref:BloombergLP/bdlb/NullableValue/operator_assign-054.adoc[operator=](xref:bsl/optional-072.adoc[bsl::optional<BDE_OTHER_TYPE>] const& rhs)
requires bsl::is_convertible<BDE_OTHER_TYPE, TYPE>::value;
----

[.small]#xref:BloombergLP/bdlb/NullableValue/operator_assign-054.adoc[_» more..._]#

Assign a new value to this optional.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_ANY_TYPE = t_TYPE>
constexpr
xref:bsl/optional-072.adoc[optional<t_TYPE>]&
xref:bsl/optional-072/operator_assign-06.adoc[operator=](std::optional<t_ANY_TYPE> const& rhs);
----

[.small]#xref:bsl/optional-072/operator_assign-06.adoc[_» more..._]#

Assign a new value to this optional.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_ANY_TYPE = t_TYPE>
constexpr
xref:bsl/optional-072.adoc[optional<t_TYPE>]&
xref:bsl/optional-072/operator_assign-0d.adoc[operator=](t_ANY_TYPE&& rhs);
----

[.small]#xref:bsl/optional-072/operator_assign-0d.adoc[_» more..._]#

Assign a new value to this optional.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_ANY_TYPE = t_TYPE>
constexpr
xref:bsl/optional-072.adoc[optional<t_TYPE>]&
xref:bsl/optional-072/operator_assign-0e.adoc[operator=](std::optional<t_ANY_TYPE>&& rhs);
----

[.small]#xref:bsl/optional-072/operator_assign-0e.adoc[_» more..._]#

== Return Value

* a reference providing modifiable access to this object
* reference providing modifiable access to this object

== Parameters

[cols="1,4"]
|===
| Name| Description
| *rhs*
| object whose value is assigned to this object
| *nullopt*
| disengaged‐optional tag; value is unused
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#