mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-30 18:53:39 +00:00
20 lines
441 B
Rust
20 lines
441 B
Rust
const X : usize = 2;
|
|
|
|
const fn f(x: usize) -> usize {
|
|
let mut sum = 0;
|
|
for i in 0..x {
|
|
//~^ ERROR cannot convert
|
|
//~| ERROR `for` is not allowed in a `const fn`
|
|
//~| ERROR mutable references are not allowed in constant functions
|
|
//~| ERROR cannot call non-const fn
|
|
//~| ERROR the trait bound
|
|
sum += i;
|
|
}
|
|
sum
|
|
}
|
|
|
|
#[allow(unused_variables)]
|
|
fn main() {
|
|
let a : [i32; f(X)];
|
|
}
|