64 lines
1.3 KiB
Rust
64 lines
1.3 KiB
Rust
// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution.
|
|
//
|
|
// 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.
|
|
|
|
|
|
#![feature(tool_lints)]
|
|
|
|
|
|
#![allow(unused, clippy::no_effect, clippy::unnecessary_operation)]
|
|
#![warn(clippy::mut_mut)]
|
|
|
|
|
|
|
|
|
|
fn fun(x : &mut &mut u32) -> bool {
|
|
**x > 0
|
|
}
|
|
|
|
fn less_fun(x : *mut *mut u32) {
|
|
let y = x;
|
|
}
|
|
|
|
macro_rules! mut_ptr {
|
|
($p:expr) => { &mut $p }
|
|
}
|
|
|
|
#[allow(unused_mut, unused_variables)]
|
|
fn main() {
|
|
let mut x = &mut &mut 1u32;
|
|
{
|
|
let mut y = &mut x;
|
|
}
|
|
|
|
if fun(x) {
|
|
let y : &mut &mut u32 = &mut &mut 2;
|
|
**y + **x;
|
|
}
|
|
|
|
if fun(x) {
|
|
let y : &mut &mut &mut u32 = &mut &mut &mut 2;
|
|
***y + **x;
|
|
}
|
|
|
|
let mut z = mut_ptr!(&mut 3u32);
|
|
}
|
|
|
|
fn issue939() {
|
|
let array = [5, 6, 7, 8, 9];
|
|
let mut args = array.iter().skip(2);
|
|
for &arg in &mut args {
|
|
println!("{}", arg);
|
|
}
|
|
|
|
let args = &mut args;
|
|
for arg in args {
|
|
println!(":{}", arg);
|
|
}
|
|
}
|