1 // Copyright 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.
11 #![deny(unused_variables)]
12 #![deny(unused_assignments)]
13 #![allow(dead_code, non_camel_case_types)]
16 //~^ ERROR unused variable: `x`
19 fn f1b(x: &mut isize) {
20 //~^ ERROR unused variable: `x`
23 #[allow(unused_variables)]
28 //~^ ERROR unused variable: `x`
33 //~^ ERROR unused variable: `x`
38 //~^ ERROR variable `x` is assigned to, but never used
40 //~^ ERROR value assigned to `x` is never read
45 //~^ ERROR variable `z` is assigned to, but never used
51 #[allow(unused_variables)]
57 #[allow(unused_variables)]
58 #[allow(unused_assignments)]
67 //~^ ERROR unused variable: `i`
74 a(isize), b(isize), c(isize)
79 tri::a(i) | tri::b(i) | tri::c(i) => {
86 for x in range(1i, 10) { }
87 //~^ ERROR unused variable: `x`
91 for (x, _) in [1i, 2, 3].iter().enumerate() { }
92 //~^ ERROR unused variable: `x`
96 for (_, x) in [1i, 2, 3].iter().enumerate() {
97 //~^ ERROR unused variable: `x`
99 std::os::set_exit_status(*x); //~ WARNING unreachable statement