rustHow do I create a variable on the heap in Rust?

Creating a variable on the heap in Rust is done using the Box type. Box is a smart pointer that allocates memory on the heap and deallocates it when it goes out of scope.

let b = Box::new(5);

This code creates a Box containing the value 5 on the heap.

Code explanation

1. let b = - declares a variable b
2. Box::new(5) - creates a Box containing the value 5 on the heap

Helpful links

• Rust Book - Box

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