Rust program to swap two bytes of a number

Program/Source Code:

The source code to swap two bytes of a number is given below. The given program is compiled and executed successfully.

// Rust program to swap two bytes of a number.

fn main()
{
    let mut num:u16 = 0x1234;

    println!("Number before swapping bytes is: {:#02x}", num);
    
    num = ((num << 8) & 0xff00) | ((num >> 8) & 0x00ff);
    
    println!("Number after swapping bytes is: {:#02x}", num);
}

Output:

Number before swapping bytes is: 0x1234
Number after swapping bytes is: 0x3412

Explanation:

Here, we created a 16-bit integer variable num with an initial value of 0x1234. Then we swapped bytes of the number using bitwise operators and printed the result.