fn takes_imm(x: &isize) { } | |
fn takes_mut(x: &mut isize) { } | |
fn apply<T, F>(t: T, f: F) where F: FnOnce(T) { | |
f(t) | |
} | |
fn main() { | |
apply(&3, takes_imm); | |
apply(&3, takes_mut); | |
//~^ ERROR type mismatch | |
apply(&mut 3, takes_mut); | |
apply(&mut 3, takes_imm); | |
//~^ ERROR type mismatch | |
} |