41 lines
1.2 KiB
Rust
41 lines
1.2 KiB
Rust
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// Copyright 2015 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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trait Boo { }
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impl Boo for [i8; 1] { }
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impl Boo for [i8; 2] { }
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impl Boo for [i8; 3] { }
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impl Boo for [i8; 4] { }
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pub fn foo(box_1: fn () -> Box<[i8; 1]>,
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box_2: fn () -> Box<[i8; 20]>,
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box_3: fn () -> Box<[i8; 300]>,
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box_4: fn () -> Box<[i8; 4000]>,
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) {
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println!("Hello World 1");
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let _: Box<[i8]> = match 3 {
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1 => box_1(),
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2 => box_2(),
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3 => box_3(),
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_ => box_4(),
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};
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println!("Hello World 2");
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}
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pub fn main() {
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fn box_1() -> Box<[i8; 1]> { Box::new( [1i8] ) }
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fn box_2() -> Box<[i8; 20]> { Box::new( [1i8; 20] ) }
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fn box_3() -> Box<[i8; 300]> { Box::new( [1i8; 300] ) }
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fn box_4() -> Box<[i8; 4000]> { Box::new( [1i8; 4000] ) }
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foo(box_1, box_2, box_3, box_4);
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}
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