#![allow(unreachable_code)]


fn main() {
    println!("{:?}", {
        concat!(Foo, Bar)
    });
}


/* ~~~~=== stderr ===~~~~
   Compiling playground v0.0.1 (/playground)
error: expected a literal
 --> src/main.rs:6:17
  |
6 |         concat!(Foo, Bar)
  |                 ^^^  ^^^
  |
  = note: only literals (like `"foo"`, `42` and `3.14`) can be passed to `concat!()`

error: aborting due to previous error

error: Could not compile `playground`.

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

*/

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

*/