src/test/run-pass/extern-pass-double.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
  12 #[link(name = "rust_test_helpers")]
  13 extern {
  14     pub fn rust_dbg_extern_identity_double(v: f64) -> f64;
  15 }
  16
  17 pub fn main() {
  18     unsafe {
  19         assert_eq!(22.0_f64, rust_dbg_extern_identity_double(22.0_f64));
  20     }
  21 }