mirror of https://github.com/rust-lang/rust
18 lines
339 B
Rust
18 lines
339 B
Rust
//@ run-pass
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fn borrow<F>(x: &isize, f: F) where F: FnOnce(&isize) {
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f(x)
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}
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fn test1(x: &Box<isize>) {
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borrow(&*(*x).clone(), |p| {
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let x_a = &**x as *const isize;
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assert!((x_a as usize) != (p as *const isize as usize));
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assert_eq!(unsafe{*x_a}, *p);
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})
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}
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pub fn main() {
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test1(&Box::new(22));
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}
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