1 files changed, 43 insertions, 0 deletions
diff --git a/test/std/utilities/function.objects/comparisons/not_equal_to.pass.cpp b/test/std/utilities/function.objects/comparisons/not_equal_to.pass.cpp
new file mode 100644
index 0000000000000..3e710b3e0c70b
--- /dev/null
+++ b/test/std/utilities/function.objects/comparisons/not_equal_to.pass.cpp
@@ -0,0 +1,43 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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>
+
+// not_equal_to
+
+#include <functional>
+#include <type_traits>
+#include <cassert>
+
+int main()
+{
+    typedef std::not_equal_to<int> F;
+    const F f = F();
+    static_assert((std::is_same<int, F::first_argument_type>::value), "" );
+    static_assert((std::is_same<int, F::second_argument_type>::value), "" );
+    static_assert((std::is_same<bool, F::result_type>::value), "" );
+    assert(!f(36, 36));
+    assert(f(36, 6));
+#if _LIBCPP_STD_VER > 11
+    typedef std::not_equal_to<> F2;
+    const F2 f2 = F2();
+    assert(!f2(36, 36));
+    assert( f2(36, 6));
+    assert( f2(36, 6.0));
+    assert( f2(36.0, 6));
+    assert(!f2(36.0, 36));
+    assert(!f2(36, 36.0));
+
+    constexpr bool foo = std::not_equal_to<int> () (36, 36);
+    static_assert ( !foo, "" );
+
+    constexpr bool bar = std::not_equal_to<> () (36.0, 36);
+    static_assert ( !bar, "" );
+#endif
+}