[#operator_star-0c]
= operator&ast;
:mrdocs:

Multiplication operators

== Synopses

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

Scale a fee rate by an integer factor&period;


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:CFeeRate.adoc[CFeeRate]
xref:operator_star-0e2.adoc[operator&ast;](
    int a,
    xref:CFeeRate.adoc[CFeeRate] const& f);
----

[.small]#xref:operator_star-0e2.adoc[_» more&period;&period;&period;_]#

Scale a fee rate by an integer factor&period;


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:CFeeRate.adoc[CFeeRate]
xref:operator_star-0b.adoc[operator&ast;](
    xref:CFeeRate.adoc[CFeeRate] const& f,
    int a);
----

[.small]#xref:operator_star-0b.adoc[_» more&period;&period;&period;_]#

Returns the product of a big integer and a 32&hyphen;bit value&period;


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:base_uint-02.adoc[base&lowbar;uint]
xref:operator_star-01.adoc[operator&ast;](
    xref:base_uint-02.adoc[base&lowbar;uint] const& a,
    uint32&lowbar;t b);
----

[.small]#xref:operator_star-01.adoc[_» more&period;&period;&period;_]#

Returns the product of two big integers&period;


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:base_uint-02.adoc[base&lowbar;uint]
xref:operator_star-03.adoc[operator&ast;](
    xref:base_uint-02.adoc[base&lowbar;uint] const& a,
    xref:base_uint-02.adoc[base&lowbar;uint] const& b);
----

[.small]#xref:operator_star-03.adoc[_» more&period;&period;&period;_]#

Returns the product of a big integer and a 32&hyphen;bit value&period;


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:base_uint-02.adoc[base&lowbar;uint&lt;256&gt;]
xref:operator_star-00.adoc[operator&ast;](
    xref:base_uint-02.adoc[base&lowbar;uint&lt;256&gt;] const& a,
    uint32&lowbar;t b);
----

[.small]#xref:operator_star-00.adoc[_» more&period;&period;&period;_]#

Returns the product of two big integers&period;


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:base_uint-02.adoc[base&lowbar;uint&lt;256&gt;]
xref:operator_star-0ee.adoc[operator&ast;](
    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);
----

[.small]#xref:operator_star-0ee.adoc[_» more&period;&period;&period;_]#

== Return Value

* The scaled fee rate&period;
* The product of `a` and `b&period;`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| Integer multiplier&period;
| *f*
| Fee rate to scale&period;
| *b*
| The 32&hyphen;bit multiplier&period;
|===


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