src/test/ui/abi/extern/extern-pass-u32.rs

   1 // run-pass
   2 // ignore-wasm32-bare no libc for ffi testing
   3
   4 // Test a function that takes/returns a u32.
   5
   6 #[link(name = "rust_test_helpers", kind = "static")]
   7 extern "C" {
   8     pub fn rust_dbg_extern_identity_u32(v: u32) -> u32;
   9 }
  10
  11 pub fn main() {
  12     unsafe {
  13         assert_eq!(22, rust_dbg_extern_identity_u32(22));
  14     }
  15 }