Implement N3421; comparison predicates<void>
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187357 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/utilities/function.objects/arithmetic.operations/plus.pass.cpp b/test/utilities/function.objects/arithmetic.operations/plus.pass.cpp
index bc72195..4de23ff 100644
--- a/test/utilities/function.objects/arithmetic.operations/plus.pass.cpp
+++ b/test/utilities/function.objects/arithmetic.operations/plus.pass.cpp
@@ -21,4 +21,11 @@
const F f = F();
static_assert((std::is_base_of<std::binary_function<int, int, int>, F>::value), "");
assert(f(3, 2) == 5);
+#if _LIBCPP_STD_VER > 11
+ typedef std::plus<> F2;
+ const F2 f2 = F2();
+ assert(f2(3,2) == 5);
+ assert(f2(3.0, 2) == 5);
+ assert(f2(3, 2.5) == 5.5);
+#endif
}