| // Copyright 2017 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. |
| |
| use std::fmt::Debug; |
| |
| trait MultiRegionTrait<'a, 'b> {} |
| impl<'a, 'b> MultiRegionTrait<'a, 'b> for (&'a u32, &'b u32) {} |
| |
| fn no_least_region<'a, 'b>(x: &'a u32, y: &'b u32) -> impl MultiRegionTrait<'a, 'b> { |
| //~^ ERROR ambiguous lifetime bound |
| (x, y) |
| } |
| |
| fn main() {} |