1 // Regression test for the issue #63460.
6 macro_rules! separator {
11 macro_rules! concat_separator {
12 ( $e:literal, $($other:literal),+ ) => {
13 concat!($e, $crate::separator!(), $crate::concat_separator!($($other),+))
21 println!("{}", concat_separator!(2, 3, 4))