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// 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.
#![feature(const_fn)]
const X : usize = 2;
const fn f(x: usize) -> usize {
let mut sum = 0; //~ ERROR blocks in constant functions are limited
for i in 0..x { //~ ERROR calls in constant functions
//~| ERROR constant function contains unimplemented
sum += i;
}
sum //~ ERROR E0080
//~| non-constant path in constant
}
#[allow(unused_variables)]
fn main() {
let a : [i32; f(X)]; //~ NOTE for constant expression here
//~| WARNING constant evaluation error: non-constant path
//~| on by default
}
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