src/test/ui/run-pass/extern/extern-pass-u64.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 // run-pass
  12 // ignore-wasm32-bare no libc for ffi testing
  13
  14 // Test a call to a function that takes/returns a u64.
  15
  16
  17 #[link(name = "rust_test_helpers", kind = "static")]
  18 extern {
  19     pub fn rust_dbg_extern_identity_u64(v: u64) -> u64;
  20 }
  21
  22 pub fn main() {
  23     unsafe {
  24         assert_eq!(22, rust_dbg_extern_identity_u64(22));
  25     }
  26 }