[rustc.git] / src / test / run-pass / const-fn-cross-crate.rs

// Copyright 2015 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.

// aux-build:const_fn_lib.rs

// A very basic test of const fn functionality.

#![feature(const_fn)]

extern crate const_fn_lib;

use const_fn_lib::foo;

const FOO: usize = foo();

fn main() {
    assert_eq!(FOO, 22);
    let _: [i32; foo()] = [42; 22];
}
Commit	Line	Data
1a4d82fc	1	// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
223e47cc LB	2	// file at the top-level directory of this distribution and at
	3	// http://rust-lang.org/COPYRIGHT.
	4	//
	5	// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
	6	// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
	7	// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
	8	// option. This file may not be copied, modified, or distributed
	9	// except according to those terms.
	10
62682a34	11	// aux-build:const_fn_lib.rs
85aaf69f	12
62682a34	13	// A very basic test of const fn functionality.
223e47cc	14
62682a34 SL	15	#![feature(const_fn)]
	16
	17	extern crate const_fn_lib;
	18
	19	use const_fn_lib::foo;
	20
	21	const FOO: usize = foo();
	22
	23	fn main() {
	24	assert_eq!(FOO, 22);
7453a54e	25	let _: [i32; foo()] = [42; 22];
62682a34	26	}