#![allow(unreachable_code)]


fn main() {
    println!("{:?}", {
        enum f { A(Box<String>), B(Box<String>, Box<String>) } use std::mem::size_of; (size_of::<f>, size_of::<Option<f>>())
    });
}


/* ~~~~=== stderr ===~~~~
   Compiling playground v0.0.1 (/playground)
warning: type `f` should have an upper camel case name
 --> src/main.rs:6:14
  |
6 |         enum f { A(Box<String>), B(Box<String>, Box<String>) } use std::mem::size_of; (size_of::<f>, size_of::<Option<f>>())
  |              ^ help: convert the identifier to upper camel case: `F`
  |
  = note: #[warn(non_camel_case_types)] on by default

error[E0277]: `fn() -> usize {std::mem::size_of::<main::f>}` doesn't implement `std::fmt::Debug`
 --> src/main.rs:5:22
  |
5 |       println!("{:?}", {
  |  ______________________^
6 | |         enum f { A(Box<String>), B(Box<String>, Box<String>) } use std::mem::size_of; (size_of::<f>, size_of::<Option<f>>())
7 | |     });
  | |_____^ `fn() -> usize {std::mem::size_of::<main::f>}` cannot be formatted using `{:?}` because it doesn't implement `std::fmt::Debug`
  |
  = help: the trait `std::fmt::Debug` is not implemented for `fn() -> usize {std::mem::size_of::<main::f>}`
  = note: required because of the requirements on the impl of `std::fmt::Debug` for `(fn() -> usize {std::mem::size_of::<main::f>}, usize)`
  = note: required by `std::fmt::Debug::fmt`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0277`.
error: Could not compile `playground`.

To learn more, run the command again with --verbose.

*/

/* ~~~~=== stdout ===~~~~

*/