Niche on rustbiteshttps://www.rustbites.com/tags/niche/Recent content in Niche on rustbitesHugoenSun, 31 May 2026 10:48:35 +0200173. NonZeroU32 and Friends — Encode an Invariant and Shrink Option for Freehttps://www.rustbites.com/posts/bite-173/Sun, 31 May 2026 09:00:00 +0100https://www.rustbites.com/posts/bite-173/<p><code>Option&lt;u32&gt;</code> is <strong>8 bytes</strong>. <code>Option&lt;NonZeroU32&gt;</code> is <strong>4 bytes</strong>. Same information, half the size — and the compiler enforces &ldquo;this can&rsquo;t be zero&rdquo; for you.</p>