Function std::mem::align_of_val

pub fn align_of_val<T>(val: &T) -> usize where
    T: ?Sized, 

Returns the ABI-required minimum alignment of the type of the value that val points to.

Every reference to a value of the type T must be a multiple of this number.

Examples

use std::mem;

assert_eq!(4, mem::align_of_val(&5i32));