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

   1 // run-pass
   2 // ignore-wasm32-bare no libc for ffi testing
   3
   4 #[link(name = "rust_test_helpers", kind = "static")]
   5 extern "C" {
   6     pub fn rust_dbg_extern_identity_double(v: f64) -> f64;
   7 }
   8
   9 pub fn main() {
  10     unsafe {
  11         assert_eq!(22.0_f64, rust_dbg_extern_identity_double(22.0_f64));
  12     }
  13 }