| // 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. |
| |
| trait Set<T> { |
| fn contains(&self, _: T) -> bool; |
| fn set(&mut self, _: T); |
| } |
| |
| impl<'a, T, S> Set<&'a [T]> for S where |
| T: Copy, |
| S: Set<T>, |
| { |
| fn contains(&self, bits: &[T]) -> bool { |
| bits.iter().all(|&bit| self.contains(bit)) |
| } |
| |
| fn set(&mut self, bits: &[T]) { |
| for &bit in bits { |
| self.set(bit) |
| } |
| } |
| } |
| |
| fn main() { |
| let bits: &[_] = &[0, 1]; |
| |
| 0.contains(bits); |
| //~^ ERROR overflow |
| } |