mirror of
https://github.com/rust-lang/rust
synced 2024-10-01 06:14:33 +00:00
19 lines
258 B
Rust
19 lines
258 B
Rust
// run-pass
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fn f(arg: &mut A) {
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arg.a = 100;
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}
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#[derive(Copy, Clone)]
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struct A { a: isize }
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pub fn main() {
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let mut x = A {a: 10};
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f(&mut x);
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assert_eq!(x.a, 100);
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x.a = 20;
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let mut y = x;
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f(&mut y);
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assert_eq!(x.a, 20);
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}
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