rust/src/test/run-pass/const-fn-method.rs

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// 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.
#![feature(const_fn)]
struct Foo { val: u32 }
impl Foo {
const fn new() -> Foo {
Foo { value: 22 }
}
}
const FOO: Foo = Foo::new();
pub fn main() {
assert_eq!(FOO.value, 22);
}