vendor/libc++/libc++-release_370-r246257

1 files changed, 44 insertions, 0 deletions

diff --git a/test/std/utilities/function.objects/unord.hash/pointer.pass.cpp b/test/std/utilities/function.objects/unord.hash/pointer.pass.cpp
new file mode 100644
index 000000000000..a48394495e2d
--- /dev/null
+++ b/test/std/utilities/function.objects/unord.hash/pointer.pass.cpp
@@ -0,0 +1,44 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <functional>
+
+// template <class T>
+// struct hash
+//     : public unary_function<T, size_t>
+// {
+//     size_t operator()(T val) const;
+// };
+
+// Not very portable
+
+#include <functional>
+#include <cassert>
+#include <type_traits>
+#include <limits>
+
+template <class T>
+void
+test()
+{
+    typedef std::hash<T> H;
+    static_assert((std::is_same<typename H::argument_type, T>::value), "" );
+    static_assert((std::is_same<typename H::result_type, std::size_t>::value), "" );
+    H h;
+
+    typedef typename std::remove_pointer<T>::type type;
+    type i;
+    type j;
+    assert(h(&i) != h(&j));
+}
+
+int main()
+{
+    test<int*>();
+}