// Copyright 2016 The Rust Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution and at // http://rust-lang.org/COPYRIGHT. // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. #[link(name = "rust_test_helpers", kind = "static")] extern { fn rust_int8_to_int32(_: i8) -> i32; } fn main() { let x = unsafe { rust_int8_to_int32(-1) }; assert!(x == -1); }