rust/tests/ui/bare-fn-implements-fn-mut.rs
2024-02-16 20:02:50 +00:00

26 lines
398 B
Rust

//@ run-pass
fn call_f<F:FnMut()>(mut f: F) {
f();
}
fn f() {
println!("hello");
}
fn call_g<G:FnMut(String,String) -> String>(mut g: G, x: String, y: String)
-> String {
g(x, y)
}
fn g(mut x: String, y: String) -> String {
x.push_str(&y);
x
}
fn main() {
call_f(f);
assert_eq!(call_g(g, "foo".to_string(), "bar".to_string()),
"foobar");
}