/span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"Using safe numerics"</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
        <span class="identifier">safe_f</span><span class="special">(</span><span class="number">100</span><span class="special">,</span> <span class="number">100</span><span clas