rust/src/test/run-pass/const-fn-val.rs

// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

fn foo() -> int {
    return 0xca7f000d;
}

struct Bar<F> where F: FnMut() -> int { f: F }

static mut b : Bar<fn() -> int> = Bar { f: foo as fn() -> int};

pub fn main() {
    unsafe { assert_eq!((b.f)(), 0xca7f000d); }
}