src/test/run-pass/sepcomp-extern.rs

   1 // Copyright 2012 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 // ignore-bitrig
  12 // compile-flags: -C codegen-units=3
  13 // aux-build:sepcomp-extern-lib.rs
  14
  15 // Test accessing external items from multiple compilation units.
  16
  17 extern crate sepcomp_extern_lib;
  18
  19 extern {
  20     #[allow(ctypes)]
  21     fn foo() -> usize;
  22 }
  23
  24 fn call1() -> usize {
  25     unsafe { foo() }
  26 }
  27
  28 mod a {
  29     pub fn call2() -> usize {
  30         unsafe { ::foo() }
  31     }
  32 }
  33
  34 mod b {
  35     pub fn call3() -> usize {
  36         unsafe { ::foo() }
  37     }
  38 }
  39
  40 fn main() {
  41     assert_eq!(call1(), 1234);
  42     assert_eq!(a::call2(), 1234);
  43     assert_eq!(b::call3(), 1234);
  44 }