Implement N3421; comparison predicates<void>

llvm-svn: 187357

1 files changed, 23 insertions, 0 deletions

diff --git a/libcxx/test/utilities/function.objects/bitwise.operations/bit_xor.pass.cpp b/libcxx/test/utilities/function.objects/bitwise.operations/bit_xor.pass.cpp
index c3af462bbf2..8417d6ed25e 100644
--- a/libcxx/test/utilities/function.objects/bitwise.operations/bit_xor.pass.cpp
+++ b/libcxx/test/utilities/function.objects/bitwise.operations/bit_xor.pass.cpp
@@ -25,4 +25,27 @@ int main()
     assert(f(0x58D3, 0xEA95) == 0xB246);
     assert(f(0x58D3, 0) == 0x58D3);
     assert(f(0xFFFF, 0x58D3) == 0xA72C);
+#if _LIBCPP_STD_VER > 11
+    typedef std::bit_xor<> F2;
+    const F2 f2 = F2();
+    assert(f(0xEA95, 0xEA95) == 0);
+    assert(f(0xEA95L, 0xEA95) == 0);
+    assert(f(0xEA95, 0xEA95L) == 0);
+
+    assert(f(0xEA95, 0x58D3) == 0xB246);
+    assert(f(0xEA95L, 0x58D3) == 0xB246);
+    assert(f(0xEA95, 0x58D3L) == 0xB246);
+
+    assert(f(0x58D3, 0xEA95) == 0xB246);
+    assert(f(0x58D3L, 0xEA95) == 0xB246);
+    assert(f(0x58D3, 0xEA95L) == 0xB246);
+
+    assert(f(0x58D3, 0) == 0x58D3);
+    assert(f(0x58D3L, 0) == 0x58D3);
+    assert(f(0x58D3, 0L) == 0x58D3);
+
+    assert(f(0xFFFF, 0x58D3) == 0xA72C);
+    assert(f(0xFFFFL, 0x58D3) == 0xA72C);
+    assert(f(0xFFFF, 0x58D3L) == 0xA72C);
+#endif
 }