What diff in these fn?

1 
fn dyn_dispatch(t: &dyn F) {
    t.f();
}

fn dyn_dispatch1<T: F + ?Sized>(t: &T) {
    t.f();
}
2

the difference is that the first one is a single function that can take in input an object that has a function table with all the functions of the trait while the second one is a template for the compiler to generate a specific function for the type you are using it with

1 Like
3

The first function uses dynamic dispatching, while the second uses static dispatching.

1 Like