src/test/compile-fail/issue-18400.rs

   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.
   4 //
   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.
  10
  11 trait Set<T> {
  12     fn contains(&self, T) -> bool;
  13     fn set(&mut self, T);
  14 }
  15
  16 impl<'a, T, S> Set<&'a [T]> for S where
  17     T: Copy,
  18     S: Set<T>,
  19 {
  20     fn contains(&self, bits: &[T]) -> bool {
  21         bits.iter().all(|&bit| self.contains(bit))
  22     }
  23
  24     fn set(&mut self, bits: &[T]) {
  25         for &bit in bits {
  26             self.set(bit)
  27         }
  28     }
  29 }
  30
  31 fn main() {
  32     let bits: &[_] = &[0, 1];
  33
  34     0.contains(bits);
  35     //~^ ERROR overflow
  36 }