pub fn min_align_of_val<T>(val: &T) -> usizewhere T: ?Sized,
align_of_val
Returns the ABI-required minimum alignment of the type of the value that val points to in bytes.
val
Every reference to a value of the type T must be a multiple of this number.
T
use std::mem; assert_eq!(4, mem::min_align_of_val(&5i32));