#![feature(lang_items)]
#![feature(start)]
#![no_std]
#![windows_subsystem="console"]

#[lang="eh_personality"] extern fn rust_eh_personality() {}
#[no_mangle] pub extern fn rust_eh_register_frames () {}
#[no_mangle] pub extern fn rust_eh_unregister_frames () {}

#[cfg(target_env="msvc")]
#[link(name="libcmt")]
extern { }

use core::mem::{MaybeUninit, transmute};
use core::panic::PanicInfo;

fn exit(exit_code: u8) -> ! {
    unsafe { winapi::um::processthreadsapi::ExitProcess(exit_code as _) };
    loop { }
}

#[panic_handler]
pub extern fn panic(_info: &PanicInfo) -> ! {
    exit(99)
}

#[start]
pub fn main(_argc: isize, _argv: *const *const u8) -> isize {
    let mut buf: [MaybeUninit<u8>; 13] = unsafe { MaybeUninit::uninit().assume_init() };
    (&mut buf[.. 11]).copy_from_slice(unsafe { transmute(&b"Source12345"[..]) });
    buf[11].write(b'6');
    buf[12].write(0);
    let buf: [u8; 13] = unsafe { transmute(buf) };
    assert!(buf[5] > 120);
    exit(0)
}