problems.rs

fn foo(){}

fn main() {
    // No error
    let _: fn() = foo;

    // fnp.rs:11:27: 11:36 error: mismatched types: expected `core::option::Option<fn()>`, found
    // `core::option::Option<fn() {foo}>` (expected fn pointer, found fn item)
    // fnp.rs:11     let _: Option<fn()> = Some(foo);
    //                                     ^~~~~~~~~
    let _: Option<fn()> = Some(foo);
}