[#operator_minus-07]
= operator‐
:mrdocs:

Returns the difference of two big integers.

== Synopsis

Declared in `<arith_uint256.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:base_uint-02.adoc[base_uint<256>]
operator‐(
    xref:base_uint-02.adoc[base_uint<256>] const& a,
    xref:base_uint-02.adoc[base_uint<256>] const& b);
----

== Return Value

The result of `a` minus `b.`

== Parameters

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


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