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// Copyright 2014 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.
// Tests calls to closure arguments where the closure takes 1 argument.
// This is a bit tricky due to rust-call ABI.
fn foo(f: &mut FnMut(isize) -> isize) -> isize {
f(22)
}
fn main() {
let z = foo(&mut |x| x *100);
assert_eq!(z, 2200);
}