--- xnu/xnu-12377.101.15/libkern/os/cpp_util.h
+++ /dev/null
@@ -1,158 +0,0 @@
-#ifndef _OS_CPP_UTIL_H
-#define _OS_CPP_UTIL_H
-
-#include <sys/cdefs.h>
-#include <sys/_types/_size_t.h>
-
-#if __has_feature(cxx_nullptr) && __has_feature(cxx_decltype)
-# define OS_HAS_NULLPTR 1
-#endif
-
-#if __has_feature(cxx_rvalue_references) || __has_extension(cxx_rvalue_references)
-# define OS_HAS_RVALUE_REFERENCES 1
-#endif
-
-#if (defined(__has_include) && __has_include(<__xnu_libcxx_sentinel.h>) && __has_include(<new>))
-#include <new>
-#else
-void* operator new(size_t, void*) noexcept; // forward declaration needed for placement-new
-#endif
-
-namespace os {
-#if OS_HAS_NULLPTR
-typedef decltype(nullptr) nullptr_t;
-#endif
-
-/*
- * Reference removal
- */
-
-template <class _T> struct remove_reference       {typedef _T type;};
-template <class _T> struct remove_reference<_T&>  {typedef _T type;};
-template <class _T> struct remove_reference<_T &&> {typedef _T type;};
-template <class _T> using remove_reference_t = typename remove_reference<_T>::type;
-
-/*
- * Pointer removal
- */
-
-template <class _T> struct remove_pointer                     {typedef _T type;};
-template <class _T> struct remove_pointer<_T*>                {typedef _T type;};
-template <class _T> struct remove_pointer<_T* const>          {typedef _T type;};
-template <class _T> struct remove_pointer<_T* volatile>       {typedef _T type;};
-template <class _T> struct remove_pointer<_T* const volatile> {typedef _T type;};
-template <class _T> using remove_pointer_t = typename remove_pointer<_T>::type;
-
-/*
- * Const removal
- */
-
-template <class _T> struct remove_const           {typedef _T type;};
-template <class _T> struct remove_const<const _T> {typedef _T type;};
-template <class _T> using remove_const_t = typename remove_const<_T>::type;
-
-/*
- * Volatile removal
- */
-
-template <class _T> struct remove_volatile              {typedef _T type;};
-template <class _T> struct remove_volatile<volatile _T> {typedef _T type;};
-template <class _T> using remove_volatile_t = typename remove_volatile<_T>::type;
-
-/*
- * Extent removal
- */
-
-template<class _T> struct remove_extent { typedef _T type; };
-template<class _T> struct remove_extent<_T[]> { typedef _T type; };
-template<class _T, size_t N> struct remove_extent<_T[N]> { typedef _T type; };
-template <class _T> using remove_extent_t = typename remove_extent<_T>::type;
-
-
-template <class T> struct is_lvalue_reference { static constexpr bool value = false; };
-template <class T> struct is_lvalue_reference<T&> { static constexpr bool value = true; };
-
-/*
- * is_same
- */
-
-template<class T, class U> struct is_same { static constexpr bool value = false; };
-template<class T> struct is_same<T, T> { static constexpr bool value = true; };
-
-/*
- * Move
- */
-
-template <class _T>
-inline typename remove_reference<_T>::type &&
-move(_T && _t)
-{
-	typedef typename os::remove_reference<_T>::type _U;
-	return static_cast<_U &&>(_t);
-}
-
-template <class T>
-T*
-move(T* first, T* last, T* d_first)
-{
-	for (; first != last; ++d_first, (void)++first) {
-		*d_first = os::move(*first);
-	}
-	return d_first;
-}
-
-template <class T>
-constexpr T && forward(os::remove_reference_t<T>&t) noexcept {
-	return static_cast<T &&>(t);
-}
-
-template <class T>
-constexpr T && forward(os::remove_reference_t<T>&& t) noexcept {
-	static_assert(!os::is_lvalue_reference<T>::value,
-	    "can not forward an rvalue as an lvalue");
-	return static_cast<T &&>(t);
-}
-
-// Moves [first, last) into the range ending at d_last,
-// proceeding backwards (from last to first)
-// UB if d_last is within (first, last]
-template <class T>
-T*
-move_backward(T* first, T* last, T* d_last)
-{
-	while (first != last) {
-		*(--d_last) = os::move(*(--last));
-	}
-	return d_last;
-}
-
-template <class T>
-T*
-uninitialized_move(T* first, T* last, T* d_first)
-{
-	for (; first != last; ++d_first, (void) ++first) {
-		::new (static_cast<void*>(d_first)) T(os::move(*first));
-	}
-	return first;
-}
-
-template <class T>
-void
-destroy(T* first, T* last)
-{
-	for (; first != last; ++first) {
-		first->~T();
-	}
-}
-
-template <class T>
-void
-uninitialized_value_construct(T* first, T* last)
-{
-	for (; first != last; ++first) {
-		::new (static_cast<void*>(first)) T();
-	}
-}
-}
-
-#endif /* _OS_CPP_UTIL_H */