From 7b8de934e3feb3550c1419365414842642400274 Mon Sep 17 00:00:00 2001
From: vd4re <vd4re@protonmail.ch>
Date: Wed, 8 Mar 2023 22:33:44 -0500
Subject: [PATCH] Update FIELD_OFFSET macro

---
 src/macros.rs | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/src/macros.rs b/src/macros.rs
index 92cdd96..530aeaf 100644
--- a/src/macros.rs
+++ b/src/macros.rs
@@ -29,17 +29,8 @@ macro_rules! EXTERN {
 macro_rules! FIELD_OFFSET {
     ($_type:ty, $field:ident$(.$cfields:ident)*) => {
         unsafe {
-            union Transmuter<T: 'static> {
-                p: *const T,
-                r: &'static T,
-                i: usize,
-            }
-            #[allow(unaligned_references)]
-            Transmuter {
-                r: &(&Transmuter {
-                    p: $crate::_core::ptr::null::<$_type>()
-                }.r).$field$(.$cfields)*
-            }.i
+            let base = ::core::mem::MaybeUninit::<$_type>::uninit().as_ptr();
+            ::core::ptr::addr_of!((*base).$field$(.$cfields)*) as usize - base as usize
         }
     };
 }