1 files changed, 64 insertions, 0 deletions
diff --git a/libs/usvfs/src/shared/addrtools.h b/libs/usvfs/src/shared/addrtools.h
new file mode 100644
index 0000000..b888ebf
--- /dev/null
+++ b/libs/usvfs/src/shared/addrtools.h
@@ -0,0 +1,64 @@
+/*
+Userspace Virtual Filesystem
+
+Copyright (C) 2015 Sebastian Herbord. All rights reserved.
+
+This file is part of usvfs.
+
+usvfs is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+usvfs is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with usvfs. If not, see <http://www.gnu.org/licenses/>.
+*/
+#pragma once
+
+#include "windows_sane.h"
+
+namespace usvfs::shared
+{
+
+#ifdef _M_AMD64
+typedef DWORD64 REGWORD;
+#elif _M_IX86
+typedef DWORD REGWORD;
+#endif
+
+inline LPVOID AddrAdd(LPVOID address, size_t offset)
+{
+  return reinterpret_cast<LPVOID>(reinterpret_cast<LPBYTE>(address) + offset);
+}
+
+inline std::ptrdiff_t AddrDiff(LPVOID lhs, LPVOID rhs)
+{
+  return reinterpret_cast<LPBYTE>(lhs) - reinterpret_cast<LPBYTE>(rhs);
+}
+
+// implicitly cast pointer to void*, from there cast to target type.
+// This is supposed to be safer than directly reinterpret-casting
+template <typename T>
+inline T void_ptr_cast(void* ptr)
+{
+  return reinterpret_cast<T>(ptr);
+}
+
+template <>
+inline int64_t void_ptr_cast(void* ptr)
+{
+  return reinterpret_cast<int64_t>(ptr);
+}
+
+template <>
+inline uint64_t void_ptr_cast(void* ptr)
+{
+  return reinterpret_cast<uint64_t>(ptr);
+}
+
+}  // namespace usvfs::shared