mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-27 01:04:03 +00:00
17 lines
361 B
Rust
17 lines
361 B
Rust
#![feature(rustc_attrs)]
|
|
|
|
macro_rules! check {
|
|
($expr: expr) => (
|
|
#[rustc_dummy = $expr]
|
|
use main as _;
|
|
);
|
|
}
|
|
|
|
check!("0"); // OK
|
|
check!(0); // OK
|
|
check!(0u8); //~ ERROR suffixed literals are not allowed in attributes
|
|
check!(-0); //~ ERROR unexpected expression: `-0`
|
|
check!(0 + 0); //~ ERROR unexpected expression: `0 + 0`
|
|
|
|
fn main() {}
|