Revert r222296 to fix bad commit message

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@222316 91177308-0d34-0410-b5e6-96231b3b80d8

test/language.support/support.types/nullptr_t.pass.cpp

@@ -18,62 +18,42 @@ struct A
     A(std::nullptr_t) {}
 };
 
-template <class T>
-void test_conversions()
-{
-    {
-        T p = 0;
-        assert(p == nullptr);
-    }
-    {
-        T p = nullptr;
-        assert(p == nullptr);
-        assert(nullptr == p);
-        assert(!(p != nullptr));
-        assert(!(nullptr != p));
-    }
-}
-
-template <class T>
-void test_comparisons()
-{
-    T p = nullptr;
-    assert(p == nullptr);
-    assert(p <= nullptr);
-    assert(p >= nullptr);
-    assert(!(p != nullptr));
-    assert(!(p < nullptr));
-    assert(!(p > nullptr));
-    assert(nullptr == p);
-    assert(nullptr <= p);
-    assert(nullptr >= p);
-    assert(!(nullptr != p));
-    assert(!(nullptr < p));
-    assert(!(nullptr > p));
-}
-
-
 int main()
 {
     static_assert(sizeof(std::nullptr_t) == sizeof(void*),
                   "sizeof(std::nullptr_t) == sizeof(void*)");
-
+    A* p = 0;
-    {
+    assert(p == nullptr);
-        test_conversions<std::nullptr_t>();
+    void (A::*pmf)() = 0;
-        test_conversions<void*>();
+#ifdef __clang__
-        test_conversions<A*>();
+    // GCC 4.2 can't handle this
-        test_conversions<void(*)()>();
+    assert(pmf == nullptr);
-        test_conversions<void(A::*)()>();
+#endif
-        test_conversions<int A::*>();
+    int A::*pmd = 0;
-    }
+    assert(pmd == nullptr);
-    {
+    A a1(nullptr);
-        test_comparisons<std::nullptr_t>();
+    A a2(0);
-        test_comparisons<void*>();
-        test_comparisons<A*>();
-        test_comparisons<void(*)()>();
-    }
-    {
     bool b = nullptr;
     assert(!b);
-    }
+    assert(nullptr == nullptr);
+    assert(nullptr <= nullptr);
+    assert(nullptr >= nullptr);
+    assert(!(nullptr != nullptr));
+    assert(!(nullptr < nullptr));
+    assert(!(nullptr > nullptr));
+    A* a = nullptr;
+    assert(a == nullptr);
+    assert(a <= nullptr);
+    assert(a >= nullptr);
+    assert(!(a != nullptr));
+    assert(!(a < nullptr));
+    assert(!(a > nullptr));
+    assert(nullptr == a);
+    assert(nullptr <= a);
+    assert(nullptr >= a);
+    assert(!(nullptr != a));
+    assert(!(nullptr < a));
+    assert(!(nullptr > a));
+    std::ptrdiff_t i = reinterpret_cast<std::ptrdiff_t>(nullptr);
+    assert(i == 0);
 }

test/language.support/support.types/nullptr_t_integral_cast.fail.cpp

@@ -1,17 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-//                     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.
-//
-//===----------------------------------------------------------------------===//
-
-// typedef decltype(nullptr) nullptr_t;
-
-#include <cstddef>
-
-int main()
-{
-    std::ptrdiff_t i = static_cast<std::ptrdiff_t>(nullptr);
-}

test/language.support/support.types/nullptr_t_integral_cast.pass.cpp

@@ -1,24 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-//                     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.
-//
-//===----------------------------------------------------------------------===//
-
-// NOTE: nullptr_t emulation cannot handle a reinterpret_cast to an
-// integral type
-// XFAIL: c++98, c++03
-
-// typedef decltype(nullptr) nullptr_t;
-
-
-#include <cstddef>
-#include <cassert>
-
-int main()
-{
-    std::ptrdiff_t i = reinterpret_cast<std::ptrdiff_t>(nullptr);
-    assert(i == 0);
-}