rustHow to cast pointer to usize in Rust

In Rust, you can cast a pointer to a usize using the as usize syntax. For example, if you have a pointer ptr of type *const i32, you can cast it to a usize with let usize_ptr = ptr as usize. The output of this code will be a usize that contains the address of the pointer.

let ptr: *const i32 = &42;
let usize_ptr = ptr as usize;

The as usize syntax will convert the pointer to a usize, which is an unsigned integer type that is the same size as a pointer. This allows you to store the address of the pointer in a usize, which can then be used for other operations.

Helpful links

• Rust Documentation - Pointers
• Rust Documentation - Primitive Types
• Rust Documentation - Casting

Edit this code on GitHub