Char on rustbiteshttps://www.rustbites.com/tags/char/Recent content in Char on rustbitesHugoenMon, 18 May 2026 14:06:31 +0200146. char::MAX_LEN_UTF8 — Size UTF-8 Buffers Without Magic Numbershttps://www.rustbites.com/posts/bite-146/Mon, 18 May 2026 09:00:00 +0100https://www.rustbites.com/posts/bite-146/<p>Every time you&rsquo;ve called <code>char::encode_utf8</code>, you&rsquo;ve written <code>[0u8; 4]</code> from memory. Rust 1.93 stabilises <code>char::MAX_LEN_UTF8</code> so you don&rsquo;t have to keep that magic number in your head.</p>