rust/tests/ui/borrowck/borrowck-borrow-of-mut-base-ptr-safe.rs
许杰友 Jieyou Xu (Joe) 95ff642797 tests: remove //@ pretty-expanded usages
Done with

```bash
sd '//@ pretty-expanded.*\n' '' tests/ui/**/*.rs
```

and

```
sd '//@pretty-expanded.*\n' '' tests/ui/**/*.rs
```
2024-11-26 02:50:48 +08:00

21 lines
517 B
Rust

//@ run-pass
#![allow(dead_code)]
#![allow(unused_mut)]
#![allow(unused_variables)]
// Test that freezing an `&mut` pointer while referent is
// frozen is legal.
//
// Example from compiler/rustc_borrowck/borrowck/README.md
fn foo<'a>(mut t0: &'a mut isize,
mut t1: &'a mut isize) {
let p: &isize = &*t0; // Freezes `*t0`
let mut t2 = &t0;
let q: &isize = &**t2; // Freezes `*t0`, but that's ok...
let r: &isize = &*t0; // ...after all, could do same thing directly.
}
pub fn main() {
}