blob: d52842b4101ee3c83a90a2ff300fc2d5f3664df8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
// 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.
fn pairs(it: &fn((int, int))) {
let mut i: int = 0;
let mut j: int = 0;
while i < 10 { it((i, j)); i += 1; j += i; }
}
pub fn main() {
let mut i: int = 10;
let mut j: int = 0;
do pairs() |p| {
let (_0, _1) = p;
debug!(_0);
debug!(_1);
assert_eq!(_0 + 10, i);
i += 1;
j = _1;
};
assert_eq!(j, 45);
}
|
