ion builtin">ExperimentalSinceKotoolsTypes</span></span><span class="token punctuation">(</span><span>version<span class="token operator"> = </span><span class="breakable-word"><span class="token string">"4.2"</span></span></span><wbr><span class="token punctuation">)</span></div></div><span class="token keyword">operator </span><span class="token keyword">fun </span><a href="../-negative-int/index.html">NegativeInt</a><span class="token punctuation">.</span><a href="../unary-minus.html"><span class="token 