mirror of https://github.com/rust-lang/rust
26 lines
398 B
Rust
26 lines
398 B
Rust
//@ run-pass
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fn call_f<F:FnMut()>(mut f: F) {
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f();
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}
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fn f() {
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println!("hello");
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}
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fn call_g<G:FnMut(String,String) -> String>(mut g: G, x: String, y: String)
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-> String {
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g(x, y)
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}
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fn g(mut x: String, y: String) -> String {
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x.push_str(&y);
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x
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}
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fn main() {
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call_f(f);
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assert_eq!(call_g(g, "foo".to_string(), "bar".to_string()),
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"foobar");
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}
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