17 lines
334 B
Rust
17 lines
334 B
Rust
use std;
|
|
import std::str;
|
|
|
|
fn main() {
|
|
// Make sure we properly handle repeated self-appends.
|
|
let a: str = "A";
|
|
let i = 20;
|
|
let expected_len = 1u;
|
|
while i > 0 {
|
|
log_err str::byte_len(a);
|
|
assert (str::byte_len(a) == expected_len);
|
|
a += a;
|
|
i -= 1;
|
|
expected_len *= 2u;
|
|
}
|
|
}
|