28 lines
852 B
Rust
28 lines
852 B
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![feature(unboxed_closures)]
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use std::ops::FnMut;
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fn to_fn_mut<A,F:FnMut<A>>(f: F) -> F { f }
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fn call_it<F:FnMut(isize,isize)->isize>(y: isize, mut f: F) -> isize {
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f(2, y)
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}
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pub fn main() {
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let f = to_fn_mut(|x: usize, y: isize| -> isize { (x as isize) + y });
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let z = call_it(3, f);
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//~^ ERROR type mismatch
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//~| ERROR type mismatch
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println!("{}", z);
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}
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