From e82fdf2e7ced32db33ff4d5a8f39442f3ad627b2 Mon Sep 17 00:00:00 2001
From: Rene Rivera <grafikrobot@gmail.com>
Date: Tue, 29 Mar 2022 13:25:08 -0500
Subject: [PATCH] Use alternate sizeof advance size calc re msvc.

---
 src/engine/function.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/engine/function.cpp b/src/engine/function.cpp
index ca7010c65..51349a9aa 100644
--- a/src/engine/function.cpp
+++ b/src/engine/function.cpp
@@ -378,8 +378,9 @@ struct _stack
     template <typename T>
     struct advance_size
     {
-        static const std::ptrdiff_t value
-            = std::ptrdiff_t( reinterpret_cast<remove_cref_t<T>*>(0) + 1 );
+        struct _helper_1 { remove_cref_t<T> a; };
+        struct _helper_2 { remove_cref_t<T> a; remove_cref_t<T> b; };
+        static const std::ptrdiff_t value = sizeof(_helper_2) - sizeof(_helper_1);
     };
 
     template <typename...A>