rustExample box expression in Rust

Rust provides a powerful macro system for writing concise and expressive code. The box expression is a macro that creates a box (a smart pointer) that allocates memory on the heap.

let x = box 5;

This code creates a box containing the value 5.

The ## Code explanation

• let: a keyword used to declare a variable
• x: the name of the variable
• box: a macro that creates a box
• 5: the value stored in the box

Helpful links

• Rust Documentation - Box
• Rust by Example - Box

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