rust/src/test/run-pass/closure-inference.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.

// xfail-fast
#[legacy_modes];

fn foo(i: int) -> int { i + 1 }

fn apply<A>(f: fn(A) -> A, v: A) -> A { f(v) }

fn main() {
    let f = {|i| foo(i)};
    assert apply(f, 2) == 3;
}