[#arith_uint256-operator_plus_eq-076]
= xref:arith_uint256.adoc[arith&lowbar;uint256]::operator&plus;&equals;
:relfileprefix: ../
:mrdocs:

Addition assignment operators

== Synopses

Declared in `&lt;arith&lowbar;uint256&period;h&gt;`

Adds a 64&hyphen;bit value to this big integer in place&period;


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:base_uint-02.adoc[base&lowbar;uint&lt;256&gt;]&
xref:arith_uint256/operator_plus_eq-09.adoc[operator&plus;&equals;](uint64&lowbar;t b64);
----

[.small]#xref:arith_uint256/operator_plus_eq-09.adoc[_» more&period;&period;&period;_]#

Adds another big integer to this value in place&period;


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:base_uint-02.adoc[base&lowbar;uint&lt;256&gt;]&
xref:arith_uint256/operator_plus_eq-075.adoc[operator&plus;&equals;](xref:base_uint-02.adoc[base&lowbar;uint&lt;256&gt;] const& b);
----

[.small]#xref:arith_uint256/operator_plus_eq-075.adoc[_» more&period;&period;&period;_]#

== Return Value

A reference to this object&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *b64*
| The value to add&period;
| *b*
| The value to add&period;
|===


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