From f4e1759d768e9d5dc39778b455e3aaa7c8a628d2 Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Sun, 7 Jul 2019 11:01:31 +0200
Subject: [PATCH] try to fix old macro

---
 src/offset_of.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/offset_of.rs b/src/offset_of.rs
index 0d6e238..6931748 100644
--- a/src/offset_of.rs
+++ b/src/offset_of.rs
@@ -79,7 +79,7 @@ macro_rules! offset_of {
         // See above for a better version that only works with newer Rust.
         let non_null = $crate::ptr::NonNull::<$parent>::dangling();
         #[allow(unused_unsafe)]
-        let base_ptr = unsafe { non_null.as_ref() as *const _ };
+        let base_ptr = unsafe { non_null.as_ref() as *const $parent };
         #[allow(unused_unsafe)]
         let field_ptr = unsafe { &(*base_ptr).$field as *const _ };
         let offset = (field_ptr as usize) - (base_ptr as usize);