1 // Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
12 #![allow(unused_macros)]
16 type History = Vec<&'static str>;
18 fn wrap<A>(x:A, which: &'static str, history: &mut History) -> A {
24 ( $output_constraint:tt ) => {
29 let mut history: History = vec![];
32 : $output_constraint (*wrap(&mut x, "out", &mut history))
33 : "r"(&wrap(y, "in", &mut history))
36 assert_eq!((x,y), (1,1));
37 let b: &[_] = &["out", "in"];
38 assert_eq!(history, b);
43 #[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
45 fn out_write_only_expr_then_in_expr() {
49 fn out_read_write_expr_then_in_expr() {
53 out_write_only_expr_then_in_expr();
54 out_read_write_expr_then_in_expr();
57 #[cfg(all(not(target_arch = "x86"), not(target_arch = "x86_64")))]