src/test/run-make/issue-25581/test.rs

   1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 #![feature(libc)]
  12
  13 extern crate libc;
  14
  15 #[link(name = "test")]
  16 extern {
  17     fn slice_len(s: &[u8]) -> libc::size_t;
  18     fn slice_elem(s: &[u8], idx: libc::size_t) -> u8;
  19 }
  20
  21 fn main() {
  22     let data = [1,2,3,4,5];
  23
  24     unsafe {
  25         assert_eq!(data.len(), slice_len(&data) as usize);
  26         assert_eq!(data[0], slice_elem(&data, 0));
  27         assert_eq!(data[1], slice_elem(&data, 1));
  28         assert_eq!(data[2], slice_elem(&data, 2));
  29         assert_eq!(data[3], slice_elem(&data, 3));
  30         assert_eq!(data[4], slice_elem(&data, 4));
  31     }
  32 }