mirror of https://github.com/rust-lang/rust
31 lines
431 B
Rust
31 lines
431 B
Rust
//@ run-pass
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fn f(x: Box<isize>) {
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let y: &isize = &*x;
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println!("{}", *x);
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println!("{}", *y);
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}
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trait Trait {
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fn printme(&self);
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}
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struct Struct;
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impl Trait for Struct {
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fn printme(&self) {
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println!("hello world!");
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}
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}
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fn g(x: Box<dyn Trait>) {
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x.printme();
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let y: &dyn Trait = &*x;
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y.printme();
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}
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fn main() {
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f(Box::new(1234));
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g(Box::new(Struct) as Box<dyn Trait>);
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}
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