https://learning-notes-8ef.pages.dev/tags/memory/Recent content in Memory on Learning JournalHugoenWed, 10 Jun 2026 00:00:00 +0000https://learning-notes-8ef.pages.dev/posts/programming/rust-ownership/Wed, 10 Jun 2026 00:00:00 +0000https://learning-notes-8ef.pages.dev/posts/programming/rust-ownership/<h2 id="the-problem-rust-solves">The Problem Rust Solves</h2> <p>Memory bugs — use-after-free, double-free, dangling pointers — are the root of most systems security vulnerabilities. Rust eliminates them at compile time.</p> <h2 id="the-three-rules">The Three Rules</h2> <ol> <li>Every value has exactly one owner.</li> <li>When the owner goes out of scope, the value is dropped.</li> <li>Ownership can be transferred (moved) or temporarily lent (borrowed).</li> </ol> <h2 id="what-finally-clicked">What Finally Clicked</h2> <p>I stopped thinking about the borrow checker as a restriction and started thinking about it as a guarantee: <strong>there is always exactly one place responsible for cleanup</strong>.</p>