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This is an old version, <a href="https://mc-stan.org/docs/reference-manual/encoding.html#comment-characters">view current version</a>.
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<h2><span class="header-section-number">1.2</span> Comment characters</h2>
<p>Any bytes on a line after a line-comment sequence (<code>//</code> or
<code>#</code>) are ignored up until the ASCII 