src/test/ui/abi/cabi-int-widening.rs

   1 // run-pass
   2 // ignore-wasm32-bare no libc to test ffi with
   3
   4 #[link(name = "rust_test_helpers", kind = "static")]
   5 extern "C" {
   6     fn rust_int8_to_int32(_: i8) -> i32;
   7 }
   8
   9 fn main() {
  10     let x = unsafe {
  11         rust_int8_to_int32(-1)
  12     };
  13
  14     assert!(x == -1);
  15 }