---
layout: "default"
title: "Operator: *="
description: "Swift documentation for the '*=' operator."
root: "/v2.2"
---

<code class="language-swift">infix operator *= {
    associativity right
    precedence 90
    assignment
}</code>

<h3>Declarations</h3>

<div class="declaration" id="func-stareq-inout_-double-rhs_-double">
<a class="toggle-link" data-toggle="collapse" href="#comment-func-stareq-inout_-double-rhs_-double">func *=(<wbr>inout:<wbr> Double, rhs: Double)</a>
        
<div class="comment coll