ion-0">Definition
</h2>
<pre class="mendoza-codeblock"><code data-language="c"><span class="mdzsyn-comment">/* A byte buffer type. Used as a mutable string or string builder. */</span>
<span class="mdzsyn-type">struct</span> <span class="mdzsyn-identifier">JanetBuffer</span> <span class="mdzsyn-operator">{</span>
    <span class="mdzsyn-identifier">JanetGCObject</span> <span class="mdzsyn-identifier">gc</span><span class="mdzsyn-operator">;</span>
    <span class="mdzsyn-type">int32_t</span> <span class="md