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22 lines
548 B
Rust
22 lines
548 B
Rust
// run-pass
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#![allow(dead_code)]
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#![allow(unused_mut)]
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#![allow(unused_variables)]
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// Test that freezing an `&mut` pointer while referent is
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// frozen is legal.
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//
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// Example from compiler/rustc_borrowck/borrowck/README.md
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// pretty-expanded FIXME #23616
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fn foo<'a>(mut t0: &'a mut isize,
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mut t1: &'a mut isize) {
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let p: &isize = &*t0; // Freezes `*t0`
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let mut t2 = &t0;
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let q: &isize = &**t2; // Freezes `*t0`, but that's ok...
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let r: &isize = &*t0; // ...after all, could do same thing directly.
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}
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pub fn main() {
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}
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