// 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. #![feature(alloc_jemalloc)] #[cfg(any(all(target_os = "linux", any(target_arch = "x86", target_arch = "x86_64")), target_os = "macos"))] extern crate alloc_jemalloc; fn main() { println!("{:?}", Box::new(3)); }