[#operator_minus-07]
= operator&hyphen;
:mrdocs:

Returns the difference of two big integers&period;

== Synopsis

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

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

== Return Value

The result of `a` minus `b&period;`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| The value to subtract from&period;
| *b*
| The value to subtract&period;
|===


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