From 1b228b24a574aae0fb81e4a13ba40bfe45eb6dbd Mon Sep 17 00:00:00 2001
From: Jonathan G Rennison <j.g.rennison@gmail.com>
Date: Wed, 19 Jun 2024 19:50:48 +0100
Subject: [PATCH] Add helper wrappers similar to std::bit_cast which support
 size mismatches

---
 src/core/bit_cast.hpp | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/src/core/bit_cast.hpp b/src/core/bit_cast.hpp
index 866cb397ff..8715d9c594 100644
--- a/src/core/bit_cast.hpp
+++ b/src/core/bit_cast.hpp
@@ -32,4 +32,28 @@ constexpr To bit_cast(const From& from) noexcept
 
 #endif
 
+template <typename To, typename From>
+constexpr To bit_cast_to_storage(const From& from) noexcept
+{
+	static_assert(std::is_trivially_constructible_v<To>);
+	static_assert(std::is_trivially_copyable_v<From>);
+	static_assert(sizeof(To) >= sizeof(From));
+
+	To to{};
+	memcpy(&to, &from, sizeof(From));
+	return to;
+}
+
+template <typename To, typename From>
+constexpr To bit_cast_from_storage(const From& from) noexcept
+{
+	static_assert(std::is_trivially_constructible_v<To>);
+	static_assert(std::is_trivially_copyable_v<From>);
+	static_assert(sizeof(To) <= sizeof(From));
+
+	To to{};
+	memcpy(&to, &from, sizeof(To));
+	return to;
+}
+
 #endif /* BIT_CAST_HPP */