16 lines
452 B
Rust
16 lines
452 B
Rust
#![feature(core_intrinsics)]
|
|
|
|
use std::intrinsics::type_name;
|
|
use std::mem::{size_of, size_of_val};
|
|
|
|
fn main() {
|
|
assert_eq!(size_of::<Option<i32>>(), 8);
|
|
assert_eq!(size_of_val(&()), 0);
|
|
assert_eq!(size_of_val(&42), 4);
|
|
assert_eq!(size_of_val(&[] as &[i32]), 0);
|
|
assert_eq!(size_of_val(&[1, 2, 3] as &[i32]), 12);
|
|
assert_eq!(size_of_val("foobar"), 6);
|
|
|
|
assert_eq!(type_name::<Option<i32>>(), "core::option::Option<i32>");
|
|
}
|