rustArray pointer example in Rust

An array pointer in Rust is a pointer that points to the first element of an array. This allows us to access the elements of the array without having to pass the entire array. An example of an array pointer in Rust is shown below:

let arr = [1, 2, 3, 4];
let ptr = &arr[0];

Here, ptr is a pointer to the first element of the array arr. We can then access the elements of the array using the pointer, as shown below:

println!("{}", *ptr); // prints 1
println!("{}", *(ptr + 1)); // prints 2
println!("{}", *(ptr + 2)); // prints 3
println!("{}", *(ptr + 3)); // prints 4

The output of the above code will be:

1
2
3
4

In the code, the * operator is used to dereference the pointer and access the value of the element it points to. The ptr + n expression is used to access the nth element of the array.

Helpful links

• Rust Pointers
• Rust Arrays
• Rust Dereferencing

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