Remove auto_ptr in C++17. Get it back by defining _LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@292986 91177308-0d34-0410-b5e6-96231b3b80d8

test/libcxx/depr/depr.auto.ptr/auto.ptr/auto_ptr.cxx1z.pass.cpp

@@ -0,0 +1,27 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <memory>
+
+// template <class X>
+// class auto_ptr;
+//
+//  In C++17, auto_ptr has been removed.
+//  However, for backwards compatibility, if _LIBCPP_NO_REMOVE_AUTOPTR
+//  is defined before including <memory>, then auto_ptr will be restored.
+
+#define _LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR
+
+#include <memory>
+#include <type_traits>
+
+int main()
+{
+    std::auto_ptr<int> p;
+}