| // 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. |
| |
| #![allow(dead_code)] |
| |
| // compile-flags: -D unused-comparisons |
| fn main() { } |
| |
| fn foo() { |
| let mut i = 100_usize; |
| while i >= 0 { //~ ERROR comparison is useless due to type limits |
| i -= 1; |
| } |
| } |
| |
| fn bar() -> i8 { |
| return 123; |
| } |
| |
| fn bleh() { |
| let u = 42u8; |
| let _ = u > 255; //~ ERROR comparison is useless due to type limits |
| let _ = 255 < u; //~ ERROR comparison is useless due to type limits |
| let _ = u < 0; //~ ERROR comparison is useless due to type limits |
| let _ = 0 > u; //~ ERROR comparison is useless due to type limits |
| let _ = u <= 255; //~ ERROR comparison is useless due to type limits |
| let _ = 255 >= u; //~ ERROR comparison is useless due to type limits |
| let _ = u >= 0; //~ ERROR comparison is useless due to type limits |
| let _ = 0 <= u; //~ ERROR comparison is useless due to type limits |
| } |
