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.
13 trait Itble<'r, T, I: Iterator<Item=T>> { fn iter(&'r self) -> I; }
15 impl<'r> Itble<'r, usize, Range<usize>> for (usize, usize) {
16 fn iter(&'r self) -> Range<usize> {
17 let &(min, max) = self;
22 fn check<'r, I: Iterator<Item=usize>, T: Itble<'r, usize, I>>(cont: &T) -> bool
24 let cont_iter = cont.iter();
25 //~^ ERROR 24:26: 24:30: explicit lifetime required in the type of `cont` [E0621]
26 let result = cont_iter.fold(Some(0), |state, val| {
27 state.map_or(None, |mask| {
29 if mask & bit == 0 {Some(mask|bit)} else {None}