Function aoko::no_std::functions::fun::swap_xor

pub fn swap_xor<T>(a: &mut T, b: &mut T) where
    T: BitXorAssign<T> + Copy, 

Swaps two variables’ value.

Warnings

• Do not swap variables with a same memory address, otherwise you will get 0.

Examples

use aoko::no_std::functions::fun::*;
 
// Normal:
let a = &mut 1024; let b = &mut 2048;
swap_xor(a, b);
assert_eq!((2048, 1024), (*a, *b));
 
// Warning:
let c = &mut 3072 as *mut i32;
let x = unsafe { &mut *c };
let y = unsafe { &mut *c };
swap_xor(x, y);
assert_eq!((0, 0), (*x, *y))