Beginning Rust: Get Started with Rust 2021 Edition

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022

C. MilanesiBeginning Rusthttps://doi.org/10.1007/978-1-4842-7208-4_23

23. Borrowing and Lifetimes

Carlo Milanesi¹  

(1)

Bergamo, Italy

 

In this chapter, you will learn:

• The typical programming errors concerning references, which Rust helps to avoid: use after move, use after drop, and use after change by an alias

• The concept of borrowing of Rust references

• The concept of lifetime of Rust objects and references

• How Rust helps to avoid use after drop errors

• How Rust, with its borrow checker, helps to avoid use after change by an alias errors

• Why functions returning references need lifetime specifiers

• How to use lifetime specifiers for functions, and what they mean

• Why ...