mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-23 07:14:28 +00:00
8 lines
137 B
Rust
8 lines
137 B
Rust
macro_rules! foo {
|
|
($e: expr) => { 'x: loop { $e } }
|
|
}
|
|
|
|
pub fn main() {
|
|
foo!(break 'x); //~ ERROR use of undeclared label `'x`
|
|
}
|