mirror of
https://github.com/rust-lang/rust.git
synced 2024-10-30 22:12:15 +00:00
28 lines
455 B
Rust
28 lines
455 B
Rust
// run-pass
|
|
#![allow(dead_code)]
|
|
#![allow(unused_variables)]
|
|
// Test use of const fn from another crate without a feature gate.
|
|
|
|
// aux-build:const_fn_lib.rs
|
|
|
|
extern crate const_fn_lib;
|
|
|
|
use const_fn_lib::foo;
|
|
|
|
static FOO: usize = foo();
|
|
const BAR: usize = foo();
|
|
|
|
macro_rules! constant {
|
|
($n:ident: $t:ty = $v:expr) => {
|
|
const $n: $t = $v;
|
|
}
|
|
}
|
|
|
|
constant! {
|
|
BAZ: usize = foo()
|
|
}
|
|
|
|
fn main() {
|
|
let x: [usize; foo()] = [42; foo()];
|
|
}
|