20 lines
716 B
Rust
20 lines
716 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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fn f<T:Copy>(x: ~[T]) -> T { return x[0]; }
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fn g(act: fn(~[int]) -> int) -> int { return act(~[1, 2, 3]); }
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pub fn main() {
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fail_unless!((g(f) == 1));
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let f1: fn(~[~str]) -> ~str = f;
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fail_unless!((f1(~[~"x", ~"y", ~"z"]) == ~"x"));
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}
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