// 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. // Test use of const fn from another crate without a feature gate. // aux-build:const_fn_lib.rs extern crate const_fn_lib; use const_fn_lib::foo; static FOO: usize = foo(); //~ ERROR const fns are an unstable feature const BAR: usize = foo(); //~ ERROR const fns are an unstable feature macro_rules! constant { ($n:ident: $t:ty = $v:expr) => { const $n: $t = $v; } } constant! { BAZ: usize = foo() //~ ERROR const fns are an unstable feature } fn main() { // let x: [usize; foo()] = []; }