From 2d06866d642929b9444c3b54a718f8a60db05c87 Mon Sep 17 00:00:00 2001
From: Denis Mikhailov <denismikhaylov38@gmail.com>
Date: Mon, 4 Dec 2023 23:19:30 +0100
Subject: [PATCH] Get rid of cast_to_layout_compatible

---
 .../pfr/detail/cast_to_layout_compatible.hpp  | 75 -------------------
 include/boost/pfr/detail/core14_loophole.hpp  |  1 -
 2 files changed, 76 deletions(-)
 delete mode 100644 include/boost/pfr/detail/cast_to_layout_compatible.hpp

diff --git a/include/boost/pfr/detail/cast_to_layout_compatible.hpp b/include/boost/pfr/detail/cast_to_layout_compatible.hpp
deleted file mode 100644
index c9f440e6..00000000
--- a/include/boost/pfr/detail/cast_to_layout_compatible.hpp
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2016-2023 Antony Polukhin
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-
-#ifndef BOOST_PFR_DETAIL_CAST_TO_LAYOUT_COMPATIBLE_HPP
-#define BOOST_PFR_DETAIL_CAST_TO_LAYOUT_COMPATIBLE_HPP
-#pragma once
-
-#include <boost/pfr/detail/config.hpp>
-
-#include <type_traits>
-#include <utility>      // metaprogramming stuff
-#include <boost/pfr/detail/rvalue_t.hpp>
-
-namespace boost { namespace pfr { namespace detail {
-
-template <class T, class U>
-constexpr void static_assert_layout_compatible() noexcept {
-    static_assert(
-        std::alignment_of<T>::value == std::alignment_of<U>::value,
-        "====================> Boost.PFR: Alignment check failed, probably your structure has user-defined alignment for the whole structure or for some of the fields."
-    );
-    static_assert(sizeof(T) == sizeof(U), "====================> Boost.PFR: Size check failed, probably your structure has bitfields or user-defined alignment.");
-}
-
-/// @cond
-#ifdef __GNUC__
-#define MAY_ALIAS __attribute__((__may_alias__))
-#else
-#define MAY_ALIAS
-#endif
-/// @endcond
-
-template <class To, class From>
-MAY_ALIAS const To& cast_to_layout_compatible(const From& val) noexcept {
-    MAY_ALIAS const To* const t = reinterpret_cast<const To*>( std::addressof(val) );
-    detail::static_assert_layout_compatible<To, From>();
-    return *t;
-}
-
-template <class To, class From>
-MAY_ALIAS const volatile To& cast_to_layout_compatible(const volatile From& val) noexcept {
-    MAY_ALIAS const volatile To* const t = reinterpret_cast<const volatile To*>( std::addressof(val) );
-    detail::static_assert_layout_compatible<To, From>();
-    return *t;
-}
-
-
-template <class To, class From>
-MAY_ALIAS volatile To& cast_to_layout_compatible(volatile From& val) noexcept {
-    MAY_ALIAS volatile To* const t = reinterpret_cast<volatile To*>( std::addressof(val) );
-    detail::static_assert_layout_compatible<To, From>();
-    return *t;
-}
-
-
-template <class To, class From>
-MAY_ALIAS To& cast_to_layout_compatible(From& val) noexcept {
-    MAY_ALIAS To* const t = reinterpret_cast<To*>( std::addressof(val) );
-    detail::static_assert_layout_compatible<To, From>();
-    return *t;
-}
-
-#ifdef BOOST_PFR_DETAIL_STRICT_RVALUE_TESTING
-template <class To, class From>
-To&& cast_to_layout_compatible(rvalue_t<From> val) noexcept = delete;
-#endif
-
-#undef MAY_ALIAS
-
-
-}}} // namespace boost::pfr::detail
-
-#endif // BOOST_PFR_DETAIL_CAST_TO_LAYOUT_COMPATIBLE_HPP
diff --git a/include/boost/pfr/detail/core14_loophole.hpp b/include/boost/pfr/detail/core14_loophole.hpp
index 78534b59..9a6c48cc 100644
--- a/include/boost/pfr/detail/core14_loophole.hpp
+++ b/include/boost/pfr/detail/core14_loophole.hpp
@@ -27,7 +27,6 @@
 #include <type_traits>
 #include <utility>
 
-#include <boost/pfr/detail/cast_to_layout_compatible.hpp> // still needed for enums
 #include <boost/pfr/detail/offset_based_getter.hpp>
 #include <boost/pfr/detail/fields_count.hpp>
 #include <boost/pfr/detail/make_flat_tuple_of_references.hpp>