Question

How to convert a 16-bit number between big-endian and little-endian values in Rust

Answer 1

use std::fmt;

struct BitSet(u16);

impl fmt::Display for BitSet {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "{:016b}", self.0)
    }
}

fn main() {
    // 16 bit 
    let mut n: u16 = 4660;

    println!("{}", BitSet(n));

    n = (n << 8) | (n >> 8);

    println!("{}", BitSet(n));
}


      
/*
run:
   
0001001000110100
0011010000010010
   
*/

 

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Answer 2

fn main() {
    // 16 bit 
    let mut n: u16 = 4660;
 
    print!("{n:b}\n");
 
    n = (n << 8) | (n >> 8);
 
    print!("{n:b}\n");
}
 
// 00010010 00110100
// 00110100 00010010
 
       
/*
run:
    

1001000110100
11010000010010
    
*/

 

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