| // 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. |
| |
| #[deny(unused_unsafe)] |
| fn main() { |
| let mut v = Vec::<i32>::with_capacity(24); |
| |
| unsafe { |
| let f = |v: &mut Vec<_>| { |
| unsafe { //~ ERROR unnecessary `unsafe` |
| v.set_len(24); |
| |w: &mut Vec<u32>| { unsafe { //~ ERROR unnecessary `unsafe` |
| w.set_len(32); |
| } }; |
| } |
| |x: &mut Vec<u32>| { unsafe { //~ ERROR unnecessary `unsafe` |
| x.set_len(40); |
| } }; |
| }; |
| |
| v.set_len(0); |
| f(&mut v); |
| } |
| |
| |y: &mut Vec<u32>| { unsafe { |
| y.set_len(48); |
| } }; |
| } |
