rust/src/test/run-pass/unboxed-closures-call-fn-autoderef.rs
Alex Crichton ec7c800d2f Remove pretty-expanded from failing tests
This commit removes pretty-expanded from all tests that wind up calling panic!
one way or another now that its internals are unstable.
2015-04-08 17:21:34 -07:00

30 lines
866 B
Rust

// 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.
// Test that the call operator autoderefs when calling a bounded type parameter.
#![feature(unboxed_closures)]
use std::ops::FnMut;
fn call_with_2(x: &fn(isize) -> isize) -> isize
{
x(2) // look ma, no `*`
}
fn subtract_22(x: isize) -> isize { x - 22 }
pub fn main() {
let subtract_22: fn(isize) -> isize = subtract_22;
let z = call_with_2(&subtract_22);
assert_eq!(z, -20);
}