88a1b71305
Whenever a lang_item is required, some relevant message is displayed, often with a span of what triggered the usage of the lang item
42 lines
993 B
Rust
42 lines
993 B
Rust
// Copyright 2013 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.
|
|
|
|
// xfail-fast - windows doesn't like this
|
|
|
|
// Smallest hello world with no runtime
|
|
|
|
#[no_std];
|
|
|
|
// This is an unfortunate thing to have to do on linux :(
|
|
#[cfg(target_os = "linux")]
|
|
#[doc(hidden)]
|
|
pub mod linkhack {
|
|
#[link_args="-lrustrt -lrt"]
|
|
extern {}
|
|
}
|
|
|
|
extern {
|
|
fn puts(s: *u8);
|
|
}
|
|
|
|
extern "rust-intrinsic" {
|
|
fn transmute<T, U>(t: T) -> U;
|
|
}
|
|
|
|
#[start]
|
|
fn main(_: int, _: **u8, _: *u8) -> int {
|
|
unsafe {
|
|
let (ptr, _): (*u8, uint) = transmute("Hello!");
|
|
puts(ptr);
|
|
}
|
|
return 0;
|
|
}
|
|
|