#![crate_type = "cdylib"]  
#![crate_name = "xcdetect"]

#![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
  html_favicon_url = "https://doc.rust-lang.org/favicon.ico")]

#![feature(lang_items)]
#![no_std]

use core::fmt;
use core::panic::PanicInfo;

extern {
  static xc_words_len: *const i32;
  static xc_words: [*const i8];
  static xc_words_weights: [*const f32];

  fn printf(fmt: *const i8, ...) -> i32;
}

/// Display rust &str to stdout
pub fn print(str: &str) {
  unsafe { printf(str.as_ptr() as *const i8); }
}

#[lang = "eh_personality"]
#[no_mangle]
/// Rust error handling personality function
pub extern "C" fn eh_personality() {}

#[panic_handler]
#[no_mangle]
/// Rust panic handler
pub extern "C" fn panic_handler(p: &PanicInfo) -> ! {
  print("Rust program panicked:\n  ");
  if let Some(l) = p.location() {   
    print(":: At file "); print(l.file()); print("\n  ");
    print( ":: At line "); print("1");
  }
  loop {} // never return
}