libcxx initial import

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103490 91177308-0d34-0410-b5e6-96231b3b80d8

test/depr/depr.c.headers/stddef_h.pass.cpp

@@ -0,0 +1,37 @@
+//===----------------------------------------------------------------------===//
+//
+// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <stddef.h>
+
+#include <stddef.h>
+#include <type_traits>
+
+#ifndef NULL
+#error NULL not defined
+#endif
+
+#ifndef offsetof
+#error offsetof not defined
+#endif
+
+int main()
+{
+    static_assert(sizeof(size_t) == sizeof(void*),
+                  "sizeof(size_t) == sizeof(void*)");
+    static_assert(std::is_unsigned<size_t>::value,
+                  "std::is_unsigned<size_t>::value");
+    static_assert(std::is_integral<size_t>::value,
+                  "std::is_integral<size_t>::value");
+    static_assert(sizeof(ptrdiff_t) == sizeof(void*),
+                  "sizeof(ptrdiff_t) == sizeof(void*)");
+    static_assert(std::is_signed<ptrdiff_t>::value,
+                  "std::is_signed<ptrdiff_t>::value");
+    static_assert(std::is_integral<ptrdiff_t>::value,
+                  "std::is_integral<ptrdiff_t>::value");
+}