// 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. extern { fn foo(a: i32, ...); } fn bar(_: *const u8) {} fn main() { unsafe { foo(0, bar); //~^ ERROR can't pass `fn(*const u8) {bar}` to variadic function, cast to `fn(*const u8)` } }