40 lines
1.0 KiB
Rust
40 lines
1.0 KiB
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution and at
|
|
// http://rust-lang.org/COPYRIGHT.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
extern mod rustrt {
|
|
pub fn rust_dbg_call(cb: *u8,
|
|
data: libc::uintptr_t) -> libc::uintptr_t;
|
|
}
|
|
|
|
extern fn cb(data: libc::uintptr_t) -> libc::uintptr_t {
|
|
if data == 1u {
|
|
data
|
|
} else {
|
|
count(data - 1u) + count(data - 1u)
|
|
}
|
|
}
|
|
|
|
fn count(n: uint) -> uint {
|
|
unsafe {
|
|
task::yield();
|
|
rustrt::rust_dbg_call(cb, n)
|
|
}
|
|
}
|
|
|
|
pub fn main() {
|
|
for iter::repeat(10u) {
|
|
do task::spawn {
|
|
let result = count(5u);
|
|
debug!("result = %?", result);
|
|
assert result == 16u;
|
|
};
|
|
}
|
|
}
|