20 lines
354 B
Rust
20 lines
354 B
Rust
// xfail-stage0
|
|
|
|
use std;
|
|
import std::str;
|
|
|
|
fn main()
|
|
{
|
|
// Make sure we properly handle repeated self-appends.
|
|
let str a = "A";
|
|
auto i = 20;
|
|
auto 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;
|
|
}
|
|
}
|