 rhs: Self)</a>
        
<div class="comment collapse" id="comment-func-ampmnseq_-inout-self-rhs_-self"><div class="p">
    <p>Subtracts the second value from the first and stores the difference in the
left-hand-side variable, discarding any overflow.</p>

<p>The masking subtraction assignment operator (<code>&amp;-=</code>) silently discards any
overflow that occurs during the operation. In the following example, the
difference of <code>10</code> and <code>21</code> is less than zero, the minimum represent