rustHow to get pointer of struct in Rust

In Rust, you can get a pointer to a struct by using the & operator. For example, if you have a struct called MyStruct, you can get a pointer to it by writing &MyStruct. This will return a pointer to the struct, which can then be used to access the fields of the struct. Additionally, you can use the &mut operator to get a mutable pointer to the struct, which can be used to modify the fields of the struct. For example:

struct MyStruct {
    field1: i32,
    field2: i32,
}

fn main() {
    let my_struct = MyStruct { field1: 1, field2: 2 };
    let my_struct_ptr = &my_struct;
    let my_struct_mut_ptr = &mut my_struct;

    println!("field1: {}", my_struct_ptr.field1);
    println!("field2: {}", my_struct_mut_ptr.field2);

    my_struct_mut_ptr.field2 = 3;
    println!("field2: {}", my_struct_mut_ptr.field2);
}

Output example:

field1: 1
field2: 2
field2: 3

Explanation

The MyStruct struct is declared with two fields, field1 and field2. Then, a pointer to MyStruct is created using the & operator, and a mutable pointer is created using the &mut operator. The fields of the struct can then be accessed using the pointer, and the mutable pointer can be used to modify the fields of the struct.

Helpful links

• Rust Reference - Pointers
• Rust Reference - Structs
• Rust Reference - Mutability

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