rust/src/test/run-pass/smallest-hello-world.rs
Alex Crichton 43bfaa4a33 Mass rename uint/int to usize/isize
Now that support has been removed, all lingering use cases are renamed.
2015-03-26 12:10:22 -07:00

40 lines
1.1 KiB
Rust

// Copyright 2013-2014 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.
// Smallest "hello world" with a libc runtime
// pretty-expanded FIXME #23616
#![feature(intrinsics, lang_items, start, no_std, libc)]
#![no_std]
extern crate libc;
extern { fn puts(s: *const u8); }
extern "rust-intrinsic" { fn transmute<T, U>(t: T) -> U; }
#[lang = "stack_exhausted"] extern fn stack_exhausted() {}
#[lang = "eh_personality"] extern fn eh_personality() {}
#[lang = "panic_fmt"] fn panic_fmt() -> ! { loop {} }
#[start]
#[no_stack_check]
fn main(_: isize, _: *const *const u8) -> isize {
unsafe {
let (ptr, _): (*const u8, usize) = transmute("Hello!\0");
puts(ptr);
}
return 0;
}
#[cfg(target_os = "android")]
#[link(name="gcc")]
extern { }