1 files changed, 23 insertions, 0 deletions
diff --git a/libcxx/test/utilities/function.objects/bitwise.operations/bit_and.pass.cpp b/libcxx/test/utilities/function.objects/bitwise.operations/bit_and.pass.cpp
index ac10acdbd09..1841232728e 100644
--- a/libcxx/test/utilities/function.objects/bitwise.operations/bit_and.pass.cpp
+++ b/libcxx/test/utilities/function.objects/bitwise.operations/bit_and.pass.cpp
@@ -25,4 +25,27 @@ int main()
     assert(f(0x58D3, 0xEA95) == 0x4891);
     assert(f(0x58D3, 0) == 0);
     assert(f(0xFFFF, 0x58D3) == 0x58D3);
+#if _LIBCPP_STD_VER > 11
+    typedef std::bit_and<> F2;
+    const F2 f2 = F2();
+    assert(f2(0xEA95, 0xEA95) == 0xEA95);
+    assert(f2(0xEA95L, 0xEA95) == 0xEA95);
+    assert(f2(0xEA95, 0xEA95L) == 0xEA95);
+
+    assert(f2(0xEA95, 0x58D3) == 0x4891);
+    assert(f2(0xEA95L, 0x58D3) == 0x4891);
+    assert(f2(0xEA95, 0x58D3L) == 0x4891);
+
+    assert(f2(0x58D3, 0xEA95) == 0x4891);
+    assert(f2(0x58D3L, 0xEA95) == 0x4891);
+    assert(f2(0x58D3, 0xEA95L) == 0x4891);
+
+    assert(f2(0x58D3, 0) == 0);
+    assert(f2(0x58D3L, 0) == 0);
+    assert(f2(0x58D3, 0L) == 0);
+
+    assert(f2(0xFFFF, 0x58D3) == 0x58D3);
+    assert(f2(0xFFFFL, 0x58D3) == 0x58D3);
+    assert(f2(0xFFFF, 0x58D3L) == 0x58D3);
+#endif
 }