1 files changed, 3 insertions, 1 deletions
diff --git a/test/std/utilities/function.objects/bitwise.operations/bit_xor.pass.cpp b/test/std/utilities/function.objects/bitwise.operations/bit_xor.pass.cpp
index e7bb5e49f..d8690aa82 100644
--- a/test/std/utilities/function.objects/bitwise.operations/bit_xor.pass.cpp
+++ b/test/std/utilities/function.objects/bitwise.operations/bit_xor.pass.cpp
@@ -19,7 +19,9 @@ int main()
 {
     typedef std::bit_xor<int> F;
     const F f = F();
-    static_assert((std::is_base_of<std::binary_function<int, int, int>, F>::value), "");
+    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<int, F::result_type>::value), "" );
     assert(f(0xEA95, 0xEA95) == 0);
     assert(f(0xEA95, 0x58D3) == 0xB246);
     assert(f(0x58D3, 0xEA95) == 0xB246);