Miscellaneous

Type Casting

let a_int = 90; // int
// int to float
let mut type_cast = (a_int as f64);

let original: char = 'I';
// char to int => 73
let type_casted: i64 = original as i64;

To perform type-casting in Rust one must use the as keyword.

let mut foo = 4;
let mut borrowed_foo = &foo;
println!("{borrowed_foo}");

let mut bar = 3;
let mut mutable_borrowed_bar = &mut bar;
println!("{mutable_borrowed_bar}");

Here borrowed value borrows the value from value one using & operator.

let mut borrow = 10;
let deref = &mut borrow;

println!("{}", *deref);

De-referencing in rust can be done using the * operator

{
    // The scope limited to this braces
    let a_number = 1;
}
println!("{a_number}");

This will produce error as the scope of the variable a_number ends at the braces