src/test/run-make/graphviz-flowgraph/f23.rs


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 2014 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.

#[allow(unreachable_code)]
pub fn expr_while_23() {
    let mut x = 23;
    let mut y = 23;
    let mut z = 23;

    while x > 0 {
        x -= 1;

        while y > 0 {
            y -= 1;

            while z > 0 { z -= 1; }

            if x > 10 {
                return;
                "unreachable";
            }
        }
    }
}