+// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
//! Test casts for alignment issues
-#[warn(cast_ptr_alignment)]
-#[allow(no_effect, unnecessary_operation, cast_lossless)]
+#![feature(rustc_private)]
+extern crate libc;
+
+#[warn(clippy::cast_ptr_alignment)]
+#[allow(clippy::no_effect, clippy::unnecessary_operation, clippy::cast_lossless)]
fn main() {
/* These should be warned against */
// cast to less-strictly-aligned type
(&1u16 as *const u16) as *const u8;
(&mut 1u16 as *mut u16) as *mut u8;
+ // For c_void, we should trust the user. See #2677
+ (&1u32 as *const u32 as *const std::os::raw::c_void) as *const u32;
+ (&1u32 as *const u32 as *const libc::c_void) as *const u32;
}