---
title: "Discussion on \"Lifetimes in Rust\" | Hashnode"
description: "Discussion on \"Lifetimes in Rust\". Introduction\nLifetimes as the name says is how long references in Rust are active.\nfn main() {\n    let r;\n\n    {\n        let x = 5;\n        r = &x;\n    }\n\n    println!(\"r: {}\", r);\n}\n\nError:\nerror[E0597]: `x` does not live long enough\n --> src/main.r..."
url: "https://hashnode.com/posts/lifetimes-in-rust/65c33d59139357f9c2987acf"
---

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# [Lifetimes in Rust](https://diptobiswas.hashnode.dev/lifetimes-in-rust?utm_source=hashnode&utm_medium=feed)

Introduction Lifetimes as the name says is how long references in Rust are active. fn main() { let r; { let x = 5; r = &x; } println!("r: {}", r); } Error: error\[E0597\]: \`x\` does not live long enough --> src/main.r...

Feb 7, 2024 · 4 min read · diptobiswas.hashnode.dev  
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[Dipto Biswas](https://hashnode.com/@diptobiswas)

@diptobiswas · India

  
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I'm a Full-Stack developer with 3+ years of experience, working in JavaScript, React, Python, etc. I'm also an aspiring 3D artist, currently learning Blender.

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