1 files changed, 40 insertions, 0 deletions
diff --git a/test/std/utilities/function.objects/logical.operations/logical_not.pass.cpp b/test/std/utilities/function.objects/logical.operations/logical_not.pass.cpp
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index 0000000000000..8484625a727c1
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+++ b/test/std/utilities/function.objects/logical.operations/logical_not.pass.cpp
@@ -0,0 +1,40 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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>
+
+// logical_not
+
+#include <functional>
+#include <type_traits>
+#include <cassert>
+
+int main()
+{
+    typedef std::logical_not<int> F;
+    const F f = F();
+    static_assert((std::is_same<F::argument_type, int>::value), "" );
+    static_assert((std::is_same<F::result_type, bool>::value), "" );
+    assert(!f(36));
+    assert(f(0));
+#if _LIBCPP_STD_VER > 11
+    typedef std::logical_not<> F2;
+    const F2 f2 = F2();
+    assert(!f2(36));
+    assert( f2(0));
+    assert(!f2(36L));
+    assert( f2(0L));
+
+    constexpr bool foo = std::logical_not<int> () (36);
+    static_assert ( !foo, "" );
+
+    constexpr bool bar = std::logical_not<> () (36);
+    static_assert ( !bar, "" );
+#endif
+}