gin{cases} 0 &amp; \text{if $x \neq 0$} \\ 1 &amp; \text{if $x = 0$}
\end{cases} \]</span></p>
<!-- int; operator&&; (int x, int y); -->
<p></p>
<p><code>int</code> <strong><code>operator&amp;&amp;</code></strong><code>(int x, int y)</code><br></p>
<!-- int; operator&&; (real x, real y); -->
<p></p>
<p><code>int</code> <strong><code>operator&amp;&amp;</code></strong><code>(real x, real y)</code><br>
Return 1 if x is unequal to 0 and y is unequal to 0. <span class="math display">\[
\mathrm{operator\&amp;\&am