Explicit Lifetime Annotations

Explicit lifetime annotations use syntax like 'a to specify relationships between reference lifetimes in function signatures. Required when the compiler can't infer lifetimes automatically. Example: fn longest<'a>(x: &'a str, y: &'a str) -> &'a str ensures all references live equally long.

Visit the following resources to learn more:

• @official@Explicit Annotation
• @article@What are Lifetimes in Rust? Explained with Code Examples