Move INVOKE tests into test/libcxx sub-tree.

Testing the concrete implementation of INVOKE means calling the implementation
specific names `__invoke` and `__invoke_constexpr`. For this reason the test
are non-standard. For this reason it's best if the tests live outside of the
`test/std` directory.

llvm-svn: 267973

6 files changed, 16 insertions, 1419 deletions

diff --git a/libcxx/test/std/utilities/function.objects/func.require/INVOKE_tested_elsewhere.pass.cpp b/libcxx/test/std/utilities/function.objects/func.require/INVOKE_tested_elsewhere.pass.cpp
new file mode 100644
index 00000000000..d61c3773e53
--- /dev/null
+++ b/libcxx/test/std/utilities/function.objects/func.require/INVOKE_tested_elsewhere.pass.cpp
@@ -0,0 +1,16 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// INVOKE (f, t1, t2, ..., tN)
+
+// The tests for INVOKE (f, t1, t2, ..., tN) live in the "test/libcxx" tree
+// since they require calling the implementation specific "__invoke" and
+// "__invoke_constexpr" functions.
+
+int main() {}
diff --git a/libcxx/test/std/utilities/function.objects/func.require/bullet_1_2_3.pass.cpp b/libcxx/test/std/utilities/function.objects/func.require/bullet_1_2_3.pass.cpp
deleted file mode 100644
index 509c751b455..00000000000
--- a/libcxx/test/std/utilities/function.objects/func.require/bullet_1_2_3.pass.cpp
+++ /dev/null
@@ -1,370 +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.
-//
-//===----------------------------------------------------------------------===//
-
-// <functional>
-
-// INVOKE (f, t1, t2, ..., tN)
-
-//------------------------------------------------------------------------------
-// TESTING INVOKE(f, t1, t2, ..., tN)
-//   - Bullet 1 -- (t1.*f)(t2, ..., tN)
-//   - Bullet 2 -- (t1.get().*f)(t2, ..., tN) // t1 is a reference_wrapper
-//   - Bullet 3 -- ((*t1).*f)(t2, ..., tN)
-//
-// Overview:
-//    Bullets 1, 2 and 3 handle the case where 'f' is a pointer to member function.
-//    Bullet 1 only handles the cases where t1 is an object of type T or a
-//    type derived from 'T'. Bullet 2 handles the case where 't1' is a reference
-//    wrapper and bullet 3 handles all other cases.
-//
-// Concerns:
-//   1) cv-qualified member function signatures are accepted.
-//   2) reference qualified member function signatures are accepted.
-//   3) member functions with varargs at the end are accepted.
-//   4) The arguments are perfect forwarded to the member function call.
-//   5) Classes that are publicly derived from 'T' are accepted as the call object
-//   6) All types that dereference to T or a type derived from T can be used
-//      as the call object.
-//   7) Pointers to T or a type derived from T can be used as the call object.
-//   8) Reference return types are properly deduced.
-//   9) reference_wrappers are properly handled and unwrapped.
-//
-//
-// Plan:
-//   1) Create a class that contains a set, 'S', of non-static functions.
-//     'S' should include functions that cover every single combination
-//      of qualifiers and varargs for arities of 0, 1 and 2 (C-1,2,3).
-//      The argument types used in the functions should be non-copyable (C-4).
-//      The functions should return 'MethodID::setUncheckedCall()'.
-//
-//   2) Create a set of supported call object, 'Objs', of different types
-//      and behaviors. (C-5,6,7)
-//
-//   3) Attempt to call each function, 'f', in 'S' with each call object, 'c',
-//      in 'Objs'. After every attempted call to 'f' check that 'f' was
-//      actually called using 'MethodID::checkCalled(<return-value>)'
-//
-//       3b) If 'f' is reference qualified call 'f' with the properly qualified
-//       call object. Otherwise call 'f' with lvalue call objects.
-//
-//       3a) If 'f' is const, volatile, or cv qualified then call it with call
-//       objects that are equally or less cv-qualified.
-
-#include <functional>
-#include <type_traits>
-#include <cassert>
-
-#include "test_macros.h"
-#include "invoke_helpers.h"
-
-//==============================================================================
-// MemFun03 - C++03 compatible set of test member functions.
-struct MemFun03 {
-    typedef void*& R;
-#define F(...) \
-    R f(__VA_ARGS__) { return MethodID<R(MemFun03::*)(__VA_ARGS__)>::setUncheckedCall(); } \
-    R f(__VA_ARGS__) const { return MethodID<R(MemFun03::*)(__VA_ARGS__) const>::setUncheckedCall(); } \
-    R f(__VA_ARGS__) volatile { return MethodID<R(MemFun03::*)(__VA_ARGS__) volatile>::setUncheckedCall(); } \
-    R f(__VA_ARGS__) const volatile { return MethodID<R(MemFun03::*)(__VA_ARGS__) const volatile>::setUncheckedCall(); }
-#
-    F()
-    F(...)
-    F(ArgType&)
-    F(ArgType&, ...)
-    F(ArgType&, ArgType&)
-    F(ArgType&, ArgType&, ...)
-    F(ArgType&, ArgType&, ArgType&)
-    F(ArgType&, ArgType&, ArgType&, ...)
-#undef F
-public:
-    MemFun03() {}
-private:
-    MemFun03(MemFun03 const&);
-    MemFun03& operator=(MemFun03 const&);
-};
-
-
-#if TEST_STD_VER >= 11
-
-//==============================================================================
-// MemFun11 - C++11 reference qualified test member functions.
-struct MemFun11 {
-    typedef void*& R;
-    typedef MemFun11 C;
-#define F(...) \
-    R f(__VA_ARGS__) & { return MethodID<R(C::*)(__VA_ARGS__) &>::setUncheckedCall(); } \
-    R f(__VA_ARGS__) const & { return MethodID<R(C::*)(__VA_ARGS__) const &>::setUncheckedCall(); } \
-    R f(__VA_ARGS__) volatile & { return MethodID<R(C::*)(__VA_ARGS__) volatile &>::setUncheckedCall(); } \
-    R f(__VA_ARGS__) const volatile & { return MethodID<R(C::*)(__VA_ARGS__) const volatile &>::setUncheckedCall(); } \
-    R f(__VA_ARGS__) && { return MethodID<R(C::*)(__VA_ARGS__) &&>::setUncheckedCall(); } \
-    R f(__VA_ARGS__) const && { return MethodID<R(C::*)(__VA_ARGS__) const &&>::setUncheckedCall(); } \
-    R f(__VA_ARGS__) volatile && { return MethodID<R(C::*)(__VA_ARGS__) volatile &&>::setUncheckedCall(); } \
-    R f(__VA_ARGS__) const volatile && { return MethodID<R(C::*)(__VA_ARGS__) const volatile &&>::setUncheckedCall(); }
-#
-    F()
-    F(...)
-    F(ArgType&&)
-    F(ArgType&&, ...)
-    F(ArgType&&, ArgType&&)
-    F(ArgType&&, ArgType&&, ...)
-    F(ArgType&&, ArgType&&, ArgType&&)
-    F(ArgType&&, ArgType&&, ArgType&&, ...)
-#undef F
-public:
-    MemFun11() {}
-private:
-    MemFun11(MemFun11 const&);
-    MemFun11& operator=(MemFun11 const&);
-};
-
-#endif // TEST_STD_VER >= 11
-
-
-
-//==============================================================================
-// TestCase - A test case for a single member function.
-//   ClassType - The type of the class being tested.
-//   CallSig   - The function signature of the method being tested.
-//   Arity     - the arity of 'CallSig'
-//   CV        - the cv qualifiers of 'CallSig' represented as a type tag.
-//   RValue    - The method is RValue qualified.
-//   ArgRValue - Call the method with RValue arguments.
-template <class ClassType, class CallSig, int Arity, class CV,
-          bool RValue = false, bool ArgRValue = false>
-struct TestCaseImp {
-public:
-
-    static void run() { TestCaseImp().doTest(); }
-
-private:
-    //==========================================================================
-    // TEST DISPATCH
-    void doTest() {
-         // (Plan-2) Create test call objects.
-        typedef ClassType T;
-        typedef DerivedFromType<T> D;
-        T obj;
-        T* obj_ptr = &obj;
-        D der;
-        D* der_ptr = &der;
-        DerefToType<T>   dref;
-        DerefPropType<T> dref2;
-        std::reference_wrapper<T> rref(obj);
-        std::reference_wrapper<D> drref(der);
-
-         // (Plan-3) Dispatch based on the CV tags.
-        CV tag;
-        Bool<!RValue> NotRValue;
-        runTestDispatch(tag,  obj);
-        runTestDispatch(tag,  der);
-        runTestDispatch(tag, dref2);
-        runTestDispatchIf(NotRValue, tag, dref);
-        runTestDispatchIf(NotRValue, tag, obj_ptr);
-        runTestDispatchIf(NotRValue, tag, der_ptr);
-#if TEST_STD_VER >= 11
-        runTestDispatchIf(NotRValue, tag, rref);
-        runTestDispatchIf(NotRValue, tag, drref);
-#endif
-    }
-
-    template <class QT, class Tp>
-    void runTestDispatchIf(Bool<true>, QT q, Tp& v) {
-        runTestDispatch(q, v);
-    }
-
-    template <class QT, class Tp>
-    void runTestDispatchIf(Bool<false>, QT, Tp&) {
-    }
-
-    template <class Tp>
-    void runTestDispatch(Q_None, Tp& v) {
-        runTest(v);
-    }
-
-    template <class Tp>
-    void runTestDispatch(Q_Const, Tp& v) {
-        runTest(v);
-        runTest(makeConst(v));
-    }
-
-    template <class Tp>
-    void runTestDispatch(Q_Volatile, Tp& v) {
-        runTest(v);
-        runTest(makeVolatile(v));
-
-    }
-
-    template <class Tp>
-    void runTestDispatch(Q_CV, Tp& v) {
-        runTest(v);
-        runTest(makeConst(v));
-        runTest(makeVolatile(v));
-        runTest(makeCV(v));
-    }
-
-    template <class T>
-    void runTest(const std::reference_wrapper<T>& obj) {
-        typedef Caster<Q_None, RValue> SCast;
-        typedef Caster<Q_None, ArgRValue> ACast;
-        typedef CallSig (ClassType::*MemPtr);
-        // Delegate test to logic in invoke_helpers.h
-        BasicTest<MethodID<MemPtr>, Arity, SCast, ACast> b;
-        b.runTest( (MemPtr)&ClassType::f, obj);
-    }
-
-    template <class T>
-    void runTest(T* obj) {
-        typedef Caster<Q_None, RValue> SCast;
-        typedef Caster<Q_None, ArgRValue> ACast;
-        typedef CallSig (ClassType::*MemPtr);
-        // Delegate test to logic in invoke_helpers.h
-        BasicTest<MethodID<MemPtr>, Arity, SCast, ACast> b;
-        b.runTest( (MemPtr)&ClassType::f, obj);
-    }
-
-    template <class Obj>
-    void runTest(Obj& obj) {
-        typedef Caster<Q_None, RValue> SCast;
-        typedef Caster<Q_None, ArgRValue> ACast;
-        typedef CallSig (ClassType::*MemPtr);
-        // Delegate test to logic in invoke_helpers.h
-        BasicTest<MethodID<MemPtr>, Arity, SCast, ACast> b;
-        b.runTest( (MemPtr)&ClassType::f, obj);
-    }
-};
-
-template <class Sig, int Arity, class CV>
-struct TestCase : public TestCaseImp<MemFun03, Sig, Arity, CV> {};
-
-#if TEST_STD_VER >= 11
-template <class Sig, int Arity, class CV, bool RValue = false>
-struct TestCase11 : public TestCaseImp<MemFun11, Sig, Arity, CV, RValue, true> {};
-#endif
-
-template <class Tp>
-struct DerivedFromRefWrap : public std::reference_wrapper<Tp> {
-  DerivedFromRefWrap(Tp& tp) : std::reference_wrapper<Tp>(tp) {}
-};
-
-#if TEST_STD_VER >= 11
-void test_derived_from_ref_wrap() {
-    int x = 42;
-    std::reference_wrapper<int> r(x);
-    std::reference_wrapper<std::reference_wrapper<int>> r2(r);
-    DerivedFromRefWrap<int> d(x);
-    auto get_fn = &std::reference_wrapper<int>::get;
-    auto& ret = std::__invoke(get_fn, r);
-    auto& cret = std::__invoke_constexpr(get_fn, r);
-    assert(&ret == &x);
-    assert(&cret == &x);
-    auto& ret2 = std::__invoke(get_fn, d);
-    auto& cret2 = std::__invoke_constexpr(get_fn, d);
-    assert(&ret2 == &x);
-    auto& ret3 = std::__invoke(get_fn, r2);
-    assert(&ret3 == &x);
-}
-#endif
-
-int main() {
-    typedef void*& R;
-    typedef ArgType A;
-    TestCase<R(),                                   0, Q_None>::run();
-    TestCase<R() const,                             0, Q_Const>::run();
-    TestCase<R() volatile,                          0, Q_Volatile>::run();
-    TestCase<R() const volatile,                    0, Q_CV>::run();
-    TestCase<R(...),                                0, Q_None>::run();
-    TestCase<R(...) const,                          0, Q_Const>::run();
-    TestCase<R(...) volatile,                       0, Q_Volatile>::run();
-    TestCase<R(...) const volatile,                 0, Q_CV>::run();
-    TestCase<R(A&),                                 1, Q_None>::run();
-    TestCase<R(A&) const,                           1, Q_Const>::run();
-    TestCase<R(A&) volatile,                        1, Q_Volatile>::run();
-    TestCase<R(A&) const volatile,                  1, Q_CV>::run();
-    TestCase<R(A&, ...),                            1, Q_None>::run();
-    TestCase<R(A&, ...) const,                      1, Q_Const>::run();
-    TestCase<R(A&, ...) volatile,                   1, Q_Volatile>::run();
-    TestCase<R(A&, ...) const volatile,             1, Q_CV>::run();
-    TestCase<R(A&, A&),                             2, Q_None>::run();
-    TestCase<R(A&, A&) const,                       2, Q_Const>::run();
-    TestCase<R(A&, A&) volatile,                    2, Q_Volatile>::run();
-    TestCase<R(A&, A&) const volatile,              2, Q_CV>::run();
-    TestCase<R(A&, A&, ...),                        2, Q_None>::run();
-    TestCase<R(A&, A&, ...) const,                  2, Q_Const>::run();
-    TestCase<R(A&, A&, ...) volatile,               2, Q_Volatile>::run();
-    TestCase<R(A&, A&, ...) const volatile,         2, Q_CV>::run();
-    TestCase<R(A&, A&, A&),                         3, Q_None>::run();
-    TestCase<R(A&, A&, A&) const,                   3, Q_Const>::run();
-    TestCase<R(A&, A&, A&) volatile,                3, Q_Volatile>::run();
-    TestCase<R(A&, A&, A&) const volatile,          3, Q_CV>::run();
-    TestCase<R(A&, A&, A&, ...),                    3, Q_None>::run();
-    TestCase<R(A&, A&, A&, ...) const,              3, Q_Const>::run();
-    TestCase<R(A&, A&, A&, ...) volatile,           3, Q_Volatile>::run();
-    TestCase<R(A&, A&, A&, ...) const volatile,     3, Q_CV>::run();
-
-#if TEST_STD_VER >= 11
-    TestCase11<R() &,                               0, Q_None>::run();
-    TestCase11<R() const &,                         0, Q_Const>::run();
-    TestCase11<R() volatile &,                      0, Q_Volatile>::run();
-    TestCase11<R() const volatile &,                0, Q_CV>::run();
-    TestCase11<R(...) &,                            0, Q_None>::run();
-    TestCase11<R(...) const &,                      0, Q_Const>::run();
-    TestCase11<R(...) volatile &,                   0, Q_Volatile>::run();
-    TestCase11<R(...) const volatile &,             0, Q_CV>::run();
-    TestCase11<R(A&&) &,                            1, Q_None>::run();
-    TestCase11<R(A&&) const &,                      1, Q_Const>::run();
-    TestCase11<R(A&&) volatile &,                   1, Q_Volatile>::run();
-    TestCase11<R(A&&) const volatile &,             1, Q_CV>::run();
-    TestCase11<R(A&&, ...) &,                       1, Q_None>::run();
-    TestCase11<R(A&&, ...) const &,                 1, Q_Const>::run();
-    TestCase11<R(A&&, ...) volatile &,              1, Q_Volatile>::run();
-    TestCase11<R(A&&, ...) const volatile &,        1, Q_CV>::run();
-    TestCase11<R(A&&, A&&) &,                       2, Q_None>::run();
-    TestCase11<R(A&&, A&&) const &,                 2, Q_Const>::run();
-    TestCase11<R(A&&, A&&) volatile &,              2, Q_Volatile>::run();
-    TestCase11<R(A&&, A&&) const volatile &,        2, Q_CV>::run();
-    TestCase11<R(A&&, A&&, ...) &,                  2, Q_None>::run();
-    TestCase11<R(A&&, A&&, ...) const &,            2, Q_Const>::run();
-    TestCase11<R(A&&, A&&, ...) volatile &,         2, Q_Volatile>::run();
-    TestCase11<R(A&&, A&&, ...) const volatile &,   2, Q_CV>::run();
-    TestCase11<R() &&,                              0, Q_None, /* RValue */ true>::run();
-    TestCase11<R() const &&,                        0, Q_Const, /* RValue */ true>::run();
-    TestCase11<R() volatile &&,                     0, Q_Volatile, /* RValue */ true>::run();
-    TestCase11<R() const volatile &&,               0, Q_CV, /* RValue */ true>::run();
-    TestCase11<R(...) &&,                           0, Q_None, /* RValue */ true>::run();
-    TestCase11<R(...) const &&,                     0, Q_Const, /* RValue */ true>::run();
-    TestCase11<R(...) volatile &&,                  0, Q_Volatile, /* RValue */ true>::run();
-    TestCase11<R(...) const volatile &&,            0, Q_CV, /* RValue */ true>::run();
-    TestCase11<R(A&&) &&,                           1, Q_None, /* RValue */ true>::run();
-    TestCase11<R(A&&) const &&,                     1, Q_Const, /* RValue */ true>::run();
-    TestCase11<R(A&&) volatile &&,                  1, Q_Volatile, /* RValue */ true>::run();
-    TestCase11<R(A&&) const volatile &&,            1, Q_CV, /* RValue */ true>::run();
-    TestCase11<R(A&&, ...) &&,                      1, Q_None, /* RValue */ true>::run();
-    TestCase11<R(A&&, ...) const &&,                1, Q_Const, /* RValue */ true>::run();
-    TestCase11<R(A&&, ...) volatile &&,             1, Q_Volatile, /* RValue */ true>::run();
-    TestCase11<R(A&&, ...) const volatile &&,       1, Q_CV, /* RValue */ true>::run();
-    TestCase11<R(A&&, A&&) &&,                      2, Q_None, /* RValue */ true>::run();
-    TestCase11<R(A&&, A&&) const &&,                2, Q_Const, /* RValue */ true>::run();
-    TestCase11<R(A&&, A&&) volatile &&,             2, Q_Volatile, /* RValue */ true>::run();
-    TestCase11<R(A&&, A&&) const volatile &&,       2, Q_CV, /* RValue */ true>::run();
-    TestCase11<R(A&&, A&&, ...) &&,                 2, Q_None, /* RValue */ true>::run();
-    TestCase11<R(A&&, A&&, ...) const &&,           2, Q_Const, /* RValue */ true>::run();
-    TestCase11<R(A&&, A&&, ...) volatile &&,        2, Q_Volatile, /* RValue */ true>::run();
-    TestCase11<R(A&&, A&&, ...) const volatile &&,  2, Q_CV, /* RValue */ true>::run();
-    TestCase11<R(A&&, A&&, A&&) &&,                 3, Q_None, /* RValue */ true>::run();
-    TestCase11<R(A&&, A&&, A&&) const &&,           3, Q_Const, /* RValue */ true>::run();
-    TestCase11<R(A&&, A&&, A&&) volatile &&,        3, Q_Volatile, /* RValue */ true>::run();
-    TestCase11<R(A&&, A&&, A&&) const volatile &&,  3, Q_CV, /* RValue */ true>::run();
-    TestCase11<R(A&&, A&&, A&&, ...)  &&,                 3, Q_None, /* RValue */ true>::run();
-    TestCase11<R(A&&, A&&, A&&, ...)  const &&,           3, Q_Const, /* RValue */ true>::run();
-    TestCase11<R(A&&, A&&, A&&, ...)  volatile &&,        3, Q_Volatile, /* RValue */ true>::run();
-    TestCase11<R(A&&, A&&, A&&, ...)  const volatile &&,  3, Q_CV, /* RValue */ true>::run();
-
-    test_derived_from_ref_wrap();
-#endif
-}
\ No newline at end of file
diff --git a/libcxx/test/std/utilities/function.objects/func.require/bullet_4_5_6.pass.cpp b/libcxx/test/std/utilities/function.objects/func.require/bullet_4_5_6.pass.cpp
deleted file mode 100644
index 803c501f8c9..00000000000
--- a/libcxx/test/std/utilities/function.objects/func.require/bullet_4_5_6.pass.cpp
+++ /dev/null
@@ -1,216 +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.
-//
-//===----------------------------------------------------------------------===//
-
-// <functional>
-
-// INVOKE (f, t1, t2, ..., tN)
-
-//------------------------------------------------------------------------------
-// TESTING INVOKE(f, t1, t2, ..., tN)
-//   - Bullet 4 -- t1.*f
-//   - Bullet 5 -- t1.get().*f // t1 is a reference wrapper.
-//   - Bullet 6 -- (*t1).*f
-//
-// Overview:
-//    Bullets 4, 5 and 6 handle the case where 'f' is a pointer to member object.
-//    Bullet 4 only handles the cases where t1 is an object of type T or a
-//    type derived from 'T'. Bullet 5 handles cases where 't1' is a reference_wrapper
-//     and bullet 6 handles all other cases.
-//
-// Concerns:
-//   1) The return type is always an lvalue reference.
-//   2) The return type is not less cv-qualified that the object that contains it.
-//   3) The return type is not less cv-qualified than object type.
-//   4) The call object is perfectly forwarded.
-//   5) Classes that are publicly derived from 'T' are accepted as the call object
-//   6) All types that dereference to T or a type derived from T can be used
-//      as the call object.
-//   7) Pointers to T or a type derived from T can be used as the call object.
-//   8) reference_wrapper's are properly unwrapped before invoking the function.
-
-#include <functional>
-#include <type_traits>
-#include <cassert>
-
-#include "test_macros.h"
-#include "invoke_helpers.h"
-
-template <class Tp>
-struct TestMemberObject {
-    TestMemberObject() : object() {}
-    Tp object;
-private:
-    TestMemberObject(TestMemberObject const&);
-    TestMemberObject& operator=(TestMemberObject const&);
-};
-
-template <class ObjectType>
-struct TestCase {
-    public:
-
-    static void run() { TestCase().doTest(); }
-
-private:
-    typedef TestMemberObject<ObjectType> TestType;
-
-    //==========================================================================
-    // TEST DISPATCH
-    void doTest() {
-        typedef DerivedFromType<TestType> Derived;
-        TestType obj;
-        TestType* obj_ptr = &obj;
-        Derived der;
-        Derived* der_ptr = &der;
-        DerefToType<TestType>   dref;
-        DerefPropType<TestType> dref2;
-        std::reference_wrapper<TestType> rref(obj);
-        std::reference_wrapper<Derived> drref(der);
-
-        {
-            typedef ObjectType (TestType::*MemPtr);
-            typedef ObjectType E;
-            MemPtr M = &TestType::object;
-            runTestDispatch<E>(M, obj, &obj.object);
-            runTestDispatch<E>(M, der, &der.object);
-            runTestDispatch<E>(M, dref2, &dref2.object.object);
-            runTestPropCVDispatch<E>(M, obj_ptr, &obj_ptr->object);
-            runTestPropCVDispatch<E>(M, der_ptr, &der_ptr->object);
-#if TEST_STD_VER >= 11
-            runTestPropCVDispatch<E>(M, rref, &(rref.get().object));
-            runTestPropCVDispatch<E>(M, drref, &(drref.get().object));
-#endif
-            runTestNoPropDispatch<E>(M, dref, &dref.object.object);
-        }
-        {
-            typedef ObjectType const (TestType::*CMemPtr);
-            typedef ObjectType const E;
-            CMemPtr M = &TestType::object;
-            runTestDispatch<E>(M, obj, &obj.object);
-            runTestDispatch<E>(M, der, &der.object);
-            runTestDispatch<E>(M, dref2, &dref2.object.object);
-            runTestPropCVDispatch<E>(M, obj_ptr, &obj_ptr->object);
-            runTestPropCVDispatch<E>(M, der_ptr, &der_ptr->object);
-#if TEST_STD_VER >= 11
-            runTestPropCVDispatch<E>(M, rref, &(rref.get().object));
-            runTestPropCVDispatch<E>(M, drref, &(drref.get().object));
-#endif
-            runTestNoPropDispatch<E>(M, dref,    &dref.object.object);
-        }
-        {
-            typedef ObjectType volatile (TestType::*VMemPtr);
-            typedef ObjectType volatile E;
-            VMemPtr M = &TestType::object;
-            runTestDispatch<E>(M, obj,  &obj.object);
-            runTestDispatch<E>(M, der,  &der.object);
-            runTestDispatch<E>(M, dref2, &dref2.object.object);
-            runTestPropCVDispatch<E>(M, obj_ptr, &obj_ptr->object);
-            runTestPropCVDispatch<E>(M, der_ptr, &der_ptr->object);
-#if TEST_STD_VER >= 11
-            runTestPropCVDispatch<E>(M, rref, &(rref.get().object));
-            runTestPropCVDispatch<E>(M, drref, &(drref.get().object));
-#endif
-            runTestNoPropDispatch<E>(M, dref,    &dref.object.object);
-        }
-        {
-            typedef ObjectType const volatile (TestType::*CVMemPtr);
-            typedef ObjectType const volatile E;
-            CVMemPtr M = &TestType::object;
-            runTestDispatch<E>(M, obj,   &obj.object);
-            runTestDispatch<E>(M, der,   &der.object);
-            runTestDispatch<E>(M, dref2, &dref2.object.object);
-            runTestPropCVDispatch<E>(M, obj_ptr, &obj_ptr->object);
-            runTestPropCVDispatch<E>(M, der_ptr, &der_ptr->object);
-#if TEST_STD_VER >= 11
-            runTestPropCVDispatch<E>(M, rref, &(rref.get().object));
-            runTestPropCVDispatch<E>(M, drref, &(drref.get().object));
-#endif
-            runTestNoPropDispatch<E>(M, dref,    &dref.object.object);
-        }
-    }
-
-    template <class Expect, class Fn, class T>
-    void runTestDispatch(Fn M, T& obj, ObjectType* expect) {
-        runTest<Expect &>              (M, C_<T&>(obj),                expect);
-        runTest<Expect const&>         (M, C_<T const&>(obj),          expect);
-        runTest<Expect volatile&>      (M, C_<T volatile&>(obj),       expect);
-        runTest<Expect const volatile&>(M, C_<T const volatile&>(obj), expect);
-#if TEST_STD_VER >= 11
-        runTest<Expect&&>               (M, C_<T&&>(obj),                expect);
-        runTest<Expect const&&>         (M, C_<T const&&>(obj),          expect);
-        runTest<Expect volatile&&>      (M, C_<T volatile&&>(obj),       expect);
-        runTest<Expect const volatile&&>(M, C_<T const volatile&&>(obj), expect);
-#endif
-    }
-
-    template <class Expect, class Fn, class T>
-    void runTestPropCVDispatch(Fn M, T& obj, ObjectType* expect) {
-        runTest<Expect &>              (M, obj,                     expect);
-        runTest<Expect const&>         (M, makeConst(obj),          expect);
-        runTest<Expect volatile&>      (M, makeVolatile(obj),       expect);
-        runTest<Expect const volatile&>(M, makeCV(obj),             expect);
-    }
-
-    template <class Expect, class Fn, class T>
-    void runTestNoPropDispatch(Fn M, T& obj, ObjectType* expect) {
-        runTest<Expect&>(M, C_<T &>(obj),               expect);
-        runTest<Expect&>(M, C_<T const&>(obj),          expect);
-        runTest<Expect&>(M, C_<T volatile&>(obj),       expect);
-        runTest<Expect&>(M, C_<T const volatile&>(obj), expect);
-#if TEST_STD_VER >= 11
-        runTest<Expect&>(M, C_<T&&>(obj),                expect);
-        runTest<Expect&>(M, C_<T const&&>(obj),          expect);
-        runTest<Expect&>(M, C_<T volatile&&>(obj),       expect);
-        runTest<Expect&>(M, C_<T const volatile&&>(obj), expect);
-#endif
-    }
-
-    template <class Expect, class Fn, class T>
-    void runTest(Fn M, const T& obj, ObjectType* expect) {
-         static_assert((std::is_same<
-            decltype(std::__invoke(M, obj)), Expect
-          >::value), "");
-        Expect e = std::__invoke(M, obj);
-        assert(&e == expect);
-    }
-
-    template <class Expect, class Fn, class T>
-#if TEST_STD_VER >= 11
-    void runTest(Fn M, T&& obj, ObjectType* expect) {
-#else
-    void runTest(Fn M, T& obj, ObjectType* expect ) {
-#endif
-        {
-            static_assert((std::is_same<
-                decltype(std::__invoke(M, std::forward<T>(obj))), Expect
-              >::value), "");
-            Expect e = std::__invoke(M, std::forward<T>(obj));
-            assert(&e == expect);
-        }
-#if TEST_STD_VER >= 11
-        {
-            static_assert((std::is_same<
-                decltype(std::__invoke_constexpr(M, std::forward<T>(obj))), Expect
-              >::value), "");
-            Expect e = std::__invoke_constexpr(M, std::forward<T>(obj));
-            assert(&e == expect);
-        }
-#endif
-    }
-};
-
-
-
-
-int main() {
-    TestCase<ArgType>::run();
-    TestCase<ArgType const>::run();
-    TestCase<ArgType volatile>::run();
-    TestCase<ArgType const volatile>::run();
-    TestCase<ArgType*>::run();
-}
\ No newline at end of file
diff --git a/libcxx/test/std/utilities/function.objects/func.require/bullet_7.pass.cpp b/libcxx/test/std/utilities/function.objects/func.require/bullet_7.pass.cpp
deleted file mode 100644
index 0d14a350c89..00000000000
--- a/libcxx/test/std/utilities/function.objects/func.require/bullet_7.pass.cpp
+++ /dev/null
@@ -1,327 +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.
-//
-//===----------------------------------------------------------------------===//
-
-// <functional>
-
-// INVOKE (f, t1, t2, ..., tN)
-
-//------------------------------------------------------------------------------
-// TESTING INVOKE(f, t1, t2, ..., tN)
-//   - Bullet 7 -- f(t2, ..., tN)
-//
-// Overview:
-//    Bullet 7 handles the cases where the first argument is not a member
-//   function.
-//
-// Concerns:
-//   1) Different types of callable objects are supported. Including
-//      1a) Free Function pointers and references.
-//      1b) Classes which provide a call operator
-//      1c) lambdas
-//   2) The callable objects are perfect forwarded.
-//   3) The arguments are perfect forwarded.
-//   4) Signatures which include varargs are supported.
-//   5) In C++03 3 extra arguments should be allowed.
-//
-// Plan:
-//  1) Define a set of free functions, 'SF', and class types with call
-//     operators, 'SC', that address concerns 4 and 5. The free functions should
-//     return 'FunctionID::setUncheckedCall()' and the call operators should
-//     return 'MethodID::setUncheckedCall()'.
-//
-//  2) For each function 'f' in 'SF' and 'SC' attempt to call 'f'
-//     using the correct number of arguments and cv-ref qualifiers. Check that
-//     'f' has been called using 'FunctionID::checkCall()' if 'f' is a free
-//     function and 'MethodID::checkCall()' otherwise.
-
-
-
-#include <functional>
-#include <type_traits>
-#include <cassert>
-
-#include "test_macros.h"
-#include "invoke_helpers.h"
-
-
-//==============================================================================
-// freeFunction03 - A C++03 free function.
-void*& freeFunction03() {
-    return FunctionPtrID<void*&(), freeFunction03>::setUncheckedCall();
-}
-
-void*& freeFunction03(...) {
-    return FunctionPtrID<void*&(...), freeFunction03>::setUncheckedCall();
-}
-
-template <class A0>
-void*& freeFunction03(A0&) {
-    return FunctionPtrID<void*&(A0&), freeFunction03>::setUncheckedCall();
-}
-
-
-template <class A0>
-void*& freeFunction03(A0&, ...) {
-    return FunctionPtrID<void*&(A0&, ...), freeFunction03>::setUncheckedCall();
-}
-
-template <class A0, class A1>
-void*& freeFunction03(A0&, A1&) {
-    return FunctionPtrID<void*&(A0&, A1&), freeFunction03>::setUncheckedCall();
-}
-
-
-template <class A0, class A1>
-void*& freeFunction03(A0&, A1&, ...) {
-    return FunctionPtrID<void*&(A0&, A1&, ...), freeFunction03>::setUncheckedCall();
-}
-
-template <class A0, class A1, class A2>
-void*& freeFunction03(A0&, A1&, A2&) {
-    return FunctionPtrID<void*&(A0&, A1&, A2&), freeFunction03>::setUncheckedCall();
-}
-
-template <class A0, class A1, class A2>
-void*& freeFunction03(A0&, A1&, A2&, ...) {
-    return FunctionPtrID<void*&(A0&, A1&, A2&, ...), freeFunction03>::setUncheckedCall();
-}
-
-//==============================================================================
-// Functor03 - C++03 compatible functor object
-struct Functor03 {
-    typedef void*& R;
-    typedef Functor03 C;
-#define F(Args, ...) \
-    __VA_ARGS__ R operator() Args { return MethodID<R(C::*) Args>::setUncheckedCall(); } \
-    __VA_ARGS__ R operator() Args const { return MethodID<R(C::*) Args const>::setUncheckedCall(); } \
-    __VA_ARGS__ R operator() Args volatile { return MethodID<R(C::*) Args volatile>::setUncheckedCall(); } \
-    __VA_ARGS__ R operator() Args const volatile { return MethodID<R(C::*) Args const volatile>::setUncheckedCall(); }
-#
-    F(())
-    F((A0&), template <class A0>)
-    F((A0&, A1&), template <class A0, class A1>)
-    F((A0&, A1&, A2&), template <class A0, class A1, class A2>)
-#undef F
-public:
-    Functor03() {}
-private:
-    Functor03(Functor03 const&);
-    Functor03& operator=(Functor03 const&);
-};
-
-
-#if TEST_STD_VER >= 11
-
-//==============================================================================
-// freeFunction11 - A C++11 free function.
-template <class ...Args>
-void*& freeFunction11(Args&&...) {
-    return FunctionPtrID<void*&(Args&&...), freeFunction11>::setUncheckedCall();
-}
-
-template <class ...Args>
-void*& freeFunction11(Args&&...,...) {
-    return FunctionPtrID<void*&(Args&&...,...), freeFunction11>::setUncheckedCall();
-}
-
-//==============================================================================
-// Functor11 - C++11 reference qualified test member functions.
-struct Functor11 {
-    typedef void*& R;
-    typedef Functor11 C;
-
-#define F(CV) \
-    template <class ...Args> \
-    R operator()(Args&&...) CV { return MethodID<R(C::*)(Args&&...) CV>::setUncheckedCall(); }
-#
-    F(&)
-    F(const &)
-    F(volatile &)
-    F(const volatile &)
-    F(&&)
-    F(const &&)
-    F(volatile &&)
-    F(const volatile &&)
-#undef F
-public:
-    Functor11() {}
-private:
-    Functor11(Functor11 const&);
-    Functor11& operator=(Functor11 const&);
-};
-
-#endif // TEST_STD_VER >= 11
-
-
-//==============================================================================
-// TestCaseFunctorImp - A test case for an operator() class method.
-//   ClassType - The type of the call object.
-//   CallSig   - The function signature of the call operator being tested.
-//   Arity     - the arity of 'CallSig'
-//   ObjCaster - Transformation function applied to call object.
-//   ArgCaster - Transformation function applied to the extra arguments.
-template <class ClassType, class CallSig, int Arity,
-          class ObjCaster, class ArgCaster = LValueCaster>
-struct TestCaseFunctorImp {
-public:
-    static void run() {
-        typedef MethodID<CallSig ClassType::*> MID;
-        BasicTest<MID, Arity, ObjCaster, ArgCaster> t;
-        typedef ClassType T;
-        typedef DerivedFromType<T> D;
-        T obj;
-        D der;
-        t.runTest(obj);
-        t.runTest(der);
-    }
-};
-
-//==============================================================================
-// TestCaseFreeFunction - A test case for a free function.
-//   CallSig   - The function signature of the free function being tested.
-//   FnPtr     - The function being tested.
-//   Arity     - the arity of 'CallSig'
-//   ArgCaster - Transformation function to be applied to the extra arguments.
-template <class CallSig, CallSig* FnPtr, int Arity, class ArgCaster>
-struct TestCaseFreeFunction {
-public:
-    static void run() {
-        typedef FunctionPtrID<CallSig, FnPtr> FID;
-        BasicTest<FID, Arity, LValueCaster, ArgCaster> t;
-
-        DerefToType<CallSig*> deref_to(FnPtr);
-        DerefToType<CallSig&> deref_to_ref(*FnPtr);
-
-        t.runTest(FnPtr);
-        t.runTest(*FnPtr);
-        t.runTest(deref_to);
-        t.runTest(deref_to_ref);
-    }
-};
-
-//==============================================================================
-//                          runTest Helpers
-//==============================================================================
-#if TEST_STD_VER >= 11
-template <class Sig, int Arity, class ArgCaster>
-void runFunctionTestCase11() {
-    TestCaseFreeFunction<Sig, freeFunction11, Arity, ArgCaster>();
-}
-#endif
-
-template <class Sig, int Arity, class ArgCaster>
-void runFunctionTestCase() {
-    TestCaseFreeFunction<Sig, freeFunction03, Arity, ArgCaster>();
-#if TEST_STD_VER >= 11
-    runFunctionTestCase11<Sig, Arity, ArgCaster>();
-#endif
-}
-
-template <class Sig, int Arity, class ObjCaster, class ArgCaster>
-void runFunctorTestCase() {
-    TestCaseFunctorImp<Functor03, Sig, Arity, ObjCaster, ArgCaster>::run();
-}
-
-template <class Sig, int Arity, class ObjCaster>
-void runFunctorTestCase() {
-    TestCaseFunctorImp<Functor03, Sig, Arity, ObjCaster>::run();
-}
-
-#if TEST_STD_VER >= 11
-// runTestCase - Run a test case for C++11 class functor types
-template <class Sig, int Arity, class ObjCaster, class ArgCaster = LValueCaster>
-void runFunctorTestCase11() {
-    TestCaseFunctorImp<Functor11, Sig, Arity, ObjCaster, ArgCaster>::run();
-}
-#endif
-
-// runTestCase - Run a test case for both function and functor types.
-template <class Sig, int Arity, class ArgCaster>
-void runTestCase() {
-    runFunctionTestCase<Sig, Arity, ArgCaster>();
-    runFunctorTestCase <Sig, Arity, LValueCaster, ArgCaster>();
-};
-
-int main() {
-    typedef void*& R;
-    typedef ArgType A;
-    typedef A const CA;
-
-    runTestCase< R(),                                   0, LValueCaster      >();
-    runTestCase< R(A&),                                 1, LValueCaster      >();
-    runTestCase< R(A&, A&),                             2, LValueCaster      >();
-    runTestCase< R(A&, A&, A&),                         3, LValueCaster      >();
-    runTestCase< R(CA&),                                1, ConstCaster       >();
-    runTestCase< R(CA&, CA&),                           2, ConstCaster       >();
-    runTestCase< R(CA&, CA&, CA&),                      3, ConstCaster       >();
-
-    runFunctionTestCase<R(...),                         0, LValueCaster      >();
-    runFunctionTestCase<R(A&, ...),                     1, LValueCaster      >();
-    runFunctionTestCase<R(A&, A&, ...),                 2, LValueCaster      >();
-    runFunctionTestCase<R(A&, A&, A&, ...),             3, LValueCaster      >();
-
-#if TEST_STD_VER >= 11
-    runFunctionTestCase11<R(A&&),                       1, MoveCaster        >();
-    runFunctionTestCase11<R(A&&, ...),                  1, MoveCaster        >();
-#endif
-
-    runFunctorTestCase<R(),                             0, LValueCaster      >();
-    runFunctorTestCase<R() const,                       0, ConstCaster       >();
-    runFunctorTestCase<R() volatile,                    0, VolatileCaster    >();
-    runFunctorTestCase<R() const volatile,              0, CVCaster          >();
-    runFunctorTestCase<R(A&),                           1, LValueCaster      >();
-    runFunctorTestCase<R(A&) const,                     1, ConstCaster       >();
-    runFunctorTestCase<R(A&) volatile,                  1, VolatileCaster    >();
-    runFunctorTestCase<R(A&) const volatile,            1, CVCaster          >();
-    runFunctorTestCase<R(A&, A&),                       2, LValueCaster      >();
-    runFunctorTestCase<R(A&, A&) const,                 2, ConstCaster       >();
-    runFunctorTestCase<R(A&, A&) volatile,              2, VolatileCaster    >();
-    runFunctorTestCase<R(A&, A&) const volatile,        2, CVCaster          >();
-    runFunctorTestCase<R(A&, A&, A&),                   3, LValueCaster      >();
-    runFunctorTestCase<R(A&, A&, A&) const,             3, ConstCaster       >();
-    runFunctorTestCase<R(A&, A&, A&) volatile,          3, VolatileCaster    >();
-    runFunctorTestCase<R(A&, A&, A&) const volatile,    3, CVCaster          >();
-    {
-    typedef ConstCaster CC;
-    runFunctorTestCase<R(CA&),                          1, LValueCaster,   CC>();
-    runFunctorTestCase<R(CA&) const,                    1, ConstCaster,    CC>();
-    runFunctorTestCase<R(CA&) volatile,                 1, VolatileCaster, CC>();
-    runFunctorTestCase<R(CA&) const volatile,           1, CVCaster,       CC>();
-    runFunctorTestCase<R(CA&, CA&),                     2, LValueCaster,   CC>();
-    runFunctorTestCase<R(CA&, CA&) const,               2, ConstCaster,    CC>();
-    runFunctorTestCase<R(CA&, CA&) volatile,            2, VolatileCaster, CC>();
-    runFunctorTestCase<R(CA&, CA&) const volatile,      2, CVCaster,       CC>();
-    runFunctorTestCase<R(CA&, CA&, CA&),                3, LValueCaster,   CC>();
-    runFunctorTestCase<R(CA&, CA&, CA&) const,          3, ConstCaster,    CC>();
-    runFunctorTestCase<R(CA&, CA&, CA&) volatile,       3, VolatileCaster, CC>();
-    runFunctorTestCase<R(CA&, CA&, CA&) const volatile, 3, CVCaster,       CC>();
-    }
-
-#if TEST_STD_VER >= 11
-    runFunctorTestCase11<R() &,                    0, LValueCaster          >();
-    runFunctorTestCase11<R() const &,              0, ConstCaster           >();
-    runFunctorTestCase11<R() volatile &,           0, VolatileCaster        >();
-    runFunctorTestCase11<R() const volatile &,     0, CVCaster              >();
-    runFunctorTestCase11<R() &&,                   0, MoveCaster            >();
-    runFunctorTestCase11<R() const &&,             0, MoveConstCaster       >();
-    runFunctorTestCase11<R() volatile &&,          0, MoveVolatileCaster    >();
-    runFunctorTestCase11<R() const volatile &&,    0, MoveCVCaster          >();
-    {
-    typedef MoveCaster MC;
-    runFunctorTestCase11<R(A&&) &,                 1, LValueCaster,       MC>();
-    runFunctorTestCase11<R(A&&) const &,           1, ConstCaster,        MC>();
-    runFunctorTestCase11<R(A&&) volatile &,        1, VolatileCaster,     MC>();
-    runFunctorTestCase11<R(A&&) const volatile &,  1, CVCaster,           MC>();
-    runFunctorTestCase11<R(A&&) &&,                1, MoveCaster,         MC>();
-    runFunctorTestCase11<R(A&&) const &&,          1, MoveConstCaster,    MC>();
-    runFunctorTestCase11<R(A&&) volatile &&,       1, MoveVolatileCaster, MC>();
-    runFunctorTestCase11<R(A&&) const volatile &&, 1, MoveCVCaster,       MC>();
-    }
-#endif
-}
diff --git a/libcxx/test/std/utilities/function.objects/func.require/invoke.pass.cpp b/libcxx/test/std/utilities/function.objects/func.require/invoke.pass.cpp
deleted file mode 100644
index 25681630a80..00000000000
--- a/libcxx/test/std/utilities/function.objects/func.require/invoke.pass.cpp
+++ /dev/null
@@ -1,50 +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.
-//
-//===----------------------------------------------------------------------===//
-
-// [func.require]
-
-// INVOKE
-#if __cplusplus < 201103L
-int main () {}      // no __invoke in C++03
-#else
-
-#include <type_traits>
-
-template <typename T, int N>
-struct Array
-{
-    typedef T type[N];
-};
-
-struct Type
-{
-    Array<char, 1>::type& f1();
-    Array<char, 2>::type& f2() const;
-    
-    Array<char, 1>::type& g1()        &;
-    Array<char, 2>::type& g2() const  &;
-#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
-    Array<char, 3>::type& g3()       &&;
-    Array<char, 4>::type& g4() const &&;
-#endif
-};
-
-int main()
-{
-    static_assert(sizeof(std::__invoke(&Type::f1, std::declval<Type        >())) == 1, "");
-    static_assert(sizeof(std::__invoke(&Type::f2, std::declval<Type const  >())) == 2, "");
-    
-    static_assert(sizeof(std::__invoke(&Type::g1, std::declval<Type       &>())) == 1, "");
-    static_assert(sizeof(std::__invoke(&Type::g2, std::declval<Type const &>())) == 2, "");
-#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
-    static_assert(sizeof(std::__invoke(&Type::g3, std::declval<Type      &&>())) == 3, "");
-    static_assert(sizeof(std::__invoke(&Type::g4, std::declval<Type const&&>())) == 4, "");
-#endif
-}
-#endif
diff --git a/libcxx/test/std/utilities/function.objects/func.require/invoke_helpers.h b/libcxx/test/std/utilities/function.objects/func.require/invoke_helpers.h
deleted file mode 100644
index 7e7a5fd24a6..00000000000
--- a/libcxx/test/std/utilities/function.objects/func.require/invoke_helpers.h
+++ /dev/null
@@ -1,456 +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.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef INVOKE_HELPERS_H
-#define INVOKE_HELPERS_H
-
-#include <type_traits>
-#include <cassert>
-#include <functional>
-
-#include "test_macros.h"
-
-template <int I>
-struct Int : public std::integral_constant<int, I> {};
-
-template <bool P>
-struct Bool : public std::integral_constant<bool, P> {};
-
-struct Q_None {
-    template <class T>
-    struct apply { typedef T type; };
-};
-
-struct Q_Const {
-    template <class T>
-    struct apply { typedef T const type; };
-};
-
-struct Q_Volatile {
-    template <class T>
-    struct apply { typedef T volatile type; };
-};
-
-struct Q_CV {
-    template <class T>
-    struct apply { typedef T const volatile type; };
-};
-
-// Caster - A functor object that performs cv-qualifier and value category
-//   conversions.
-//   QualTag - A metafunction type that applies cv-qualifiers to its argument.
-//   RValue - True if the resulting object should be an RValue reference.
-//            False otherwise.
-template <class QualTag, bool RValue = false>
-struct Caster {
-    template <class T>
-    struct apply {
-        typedef typename std::remove_reference<T>::type RawType;
-        typedef typename QualTag::template apply<RawType>::type CVType;
-#if TEST_STD_VER >= 11
-        typedef typename std::conditional<RValue,
-            CVType&&, CVType&
-        >::type type;
-#else
-        typedef CVType& type;
-#endif
-    };
-
-    template <class T>
-    typename apply<T>::type
-    operator()(T& obj) const {
-        typedef typename apply<T>::type OutType;
-        return static_cast<OutType>(obj);
-    }
-};
-
-typedef Caster<Q_None>           LValueCaster;
-typedef Caster<Q_Const>          ConstCaster;
-typedef Caster<Q_Volatile>       VolatileCaster;
-typedef Caster<Q_CV>             CVCaster;
-typedef Caster<Q_None,     true> MoveCaster;
-typedef Caster<Q_Const,    true> MoveConstCaster;
-typedef Caster<Q_Volatile, true> MoveVolatileCaster;
-typedef Caster<Q_CV,       true> MoveCVCaster;
-
-
-template <class Tp>
-Tp const& makeConst(Tp& ref) { return ref; }
-
-template <class Tp>
-Tp const* makeConst(Tp* ptr) { return ptr; }
-
-template <class Tp>
-std::reference_wrapper<const Tp> makeConst(std::reference_wrapper<Tp>& ref) {
-    return std::reference_wrapper<const Tp>(ref.get());
-}
-
-template <class Tp>
-Tp volatile& makeVolatile(Tp& ref) { return ref; }
-
-template <class Tp>
-Tp volatile* makeVolatile(Tp* ptr) { return ptr; }
-
-template <class Tp>
-std::reference_wrapper<volatile Tp> makeVolatile(std::reference_wrapper<Tp>& ref) {
-    return std::reference_wrapper<volatile Tp>(ref.get());
-}
-
-template <class Tp>
-Tp const volatile& makeCV(Tp& ref) { return ref; }
-
-template <class Tp>
-Tp const volatile* makeCV(Tp* ptr) { return ptr; }
-
-template <class Tp>
-std::reference_wrapper<const volatile Tp> makeCV(std::reference_wrapper<Tp>& ref) {
-    return std::reference_wrapper<const volatile Tp>(ref.get());
-}
-
-// A shorter name for 'static_cast'
-template <class QualType, class Tp>
-QualType C_(Tp& v) { return static_cast<QualType>(v); };
-
-//==============================================================================
-// ArgType - A non-copyable type intended to be used as a dummy argument type
-//   to test functions.
-struct ArgType {
-    int value;
-    explicit ArgType(int val = 0) : value(val) {}
-private:
-    ArgType(ArgType const&);
-    ArgType& operator=(ArgType const&);
-};
-
-//==============================================================================
-// DerivedFromBase - A type that derives from it's template argument 'Base'
-template <class Base>
-struct DerivedFromType : public Base {
-    DerivedFromType() : Base() {}
-    template <class Tp>
-    explicit DerivedFromType(Tp const& t) : Base(t) {}
-};
-
-//==============================================================================
-// DerefToType - A type that dereferences to it's template argument 'To'.
-//   The cv-ref qualifiers of the 'DerefToType' object do not propagate
-//   to the resulting 'To' object.
-template <class To>
-struct DerefToType {
-    To object;
-
-    DerefToType() {}
-
-    template <class Up>
-    explicit DerefToType(Up const& val) : object(val) {}
-
-    To& operator*() const volatile { return const_cast<To&>(object); }
-};
-
-//==============================================================================
-// DerefPropToType - A type that dereferences to it's template argument 'To'.
-//   The cv-ref qualifiers of the 'DerefPropToType' object propagate
-//   to the resulting 'To' object.
-template <class To>
-struct DerefPropType {
-    To object;
-
-    DerefPropType() {}
-
-    template <class Up>
-    explicit DerefPropType(Up const& val) : object(val) {}
-
-#if TEST_STD_VER < 11
-    To& operator*() { return object; }
-    To const& operator*() const { return object; }
-    To volatile& operator*() volatile  { return object; }
-    To const volatile& operator*() const volatile { return object; }
-#else
-    To& operator*() & { return object; }
-    To const& operator*() const & { return object; }
-    To volatile& operator*() volatile  & { return object; }
-    To const volatile& operator*() const volatile & { return object; }
-    To&& operator*() && { return static_cast<To &&>(object); }
-    To const&& operator*() const && { return static_cast<To const&&>(object); }
-    To volatile&& operator*() volatile  && { return static_cast<To volatile&&>(object); }
-    To const volatile&& operator*() const volatile && { return static_cast<To const volatile&&>(object); }
-#endif
-};
-
-//==============================================================================
-// MethodID - A type that uniquely identifies a member function for a class.
-//   This type is used to communicate between the member functions being tested
-//   and the tests invoking them.
-// - Test methods should call 'setUncheckedCall()' whenever they are invoked.
-// - Tests consume the unchecked call using checkCall(<return-value>)` to assert
-//   that the method has been called and that the return value of `__invoke`
-//   matches what the method actually returned.
-template <class T>
-struct MethodID {
-    typedef void* IDType;
-
-    static int dummy; // A dummy memory location.
-    static void* id; // The "ID" is the value of this pointer.
-    static bool unchecked_call; // Has a call happened that has not been checked.
-
-    static void*& setUncheckedCall() {
-        assert(unchecked_call == false);
-        unchecked_call = true;
-        return id;
-    }
-
-    static bool checkCalled(void*& return_value) {
-        bool old = unchecked_call;
-        unchecked_call = false;
-        return old && id == return_value && &id == &return_value;
-    }
-};
-
-template <class T> int   MethodID<T>::dummy = 0;
-template <class T> void* MethodID<T>::id = (void*)&MethodID<T>::dummy;
-template <class T> bool  MethodID<T>::unchecked_call = false;
-
-
-//==============================================================================
-// FunctionPtrID - Like MethodID but for free function pointers.
-template <class T, T*>
-struct FunctionPtrID {
-    static int dummy; // A dummy memory location.
-    static void* id; // The "ID" is the value of this pointer.
-    static bool unchecked_call; // Has a call happened that has not been checked.
-
-    static void*& setUncheckedCall() {
-        assert(unchecked_call == false);
-        unchecked_call = true;
-        return id;
-    }
-
-    static bool checkCalled(void*& return_value) {
-        bool old = unchecked_call;
-        unchecked_call = false;
-        return old && id == return_value && &id == &return_value;
-    }
-};
-
-template <class T, T* Ptr> int   FunctionPtrID<T, Ptr>::dummy = 0;
-template <class T, T* Ptr> void* FunctionPtrID<T, Ptr>::id = (void*)&FunctionPtrID<T, Ptr>::dummy;
-template <class T, T* Ptr> bool  FunctionPtrID<T, Ptr>::unchecked_call = false;
-
-//==============================================================================
-// BasicTest - The basic test structure for everything except
-// member object pointers.
-// ID - The "Function Identifier" type used either MethodID or FunctionPtrID.
-// Arity - The Arity of the call signature.
-// ObjectCaster - The object transformation functor type.
-// ArgCaster - The extra argument transformation functor type.
-template <class ID, int Arity, class ObjectCaster = LValueCaster,
-                               class ArgCaster    = LValueCaster>
-struct BasicTest {
-    template <class ObjectT>
-    void runTest(ObjectT& object) {
-        Int<Arity> A;
-        runTestImp(A, object);
-    }
-
-    template <class MethodPtr, class ObjectT>
-    void runTest(MethodPtr ptr, ObjectT& object) {
-        Int<Arity> A;
-        runTestImp(A, ptr, object);
-    }
-
-private:
-    typedef void*& CallRet;
-    ObjectCaster object_cast;
-    ArgCaster arg_cast;
-    ArgType a0, a1, a2;
-
-    //==========================================================================
-    //                       BULLET 1, 2 AND 3 TEST METHODS
-    //==========================================================================
-    template <class MethodPtr, class ObjectT>
-    void runTestImp(Int<0>, MethodPtr ptr, ObjectT& object) {
-        {
-            static_assert((std::is_same<
-                decltype(std::__invoke(ptr, object_cast(object)))
-              , CallRet>::value), "");
-            assert(ID::unchecked_call == false);
-            CallRet ret = std::__invoke(ptr, object_cast(object));
-            assert(ID::checkCalled(ret));
-        }
-#if TEST_STD_VER >= 11
-        {
-            static_assert((std::is_same<
-                decltype(std::__invoke_constexpr(ptr, object_cast(object)))
-              , CallRet>::value), "");
-            assert(ID::unchecked_call == false);
-            CallRet ret = std::__invoke_constexpr(ptr, object_cast(object));
-            assert(ID::checkCalled(ret));
-        }
-#endif
-    }
-
-    template <class MethodPtr, class ObjectT>
-    void runTestImp(Int<1>, MethodPtr ptr, ObjectT& object) {
-        {
-            static_assert((std::is_same<
-                decltype(std::__invoke(ptr, object_cast(object), arg_cast(a0)))
-              , CallRet>::value), "");
-            assert(ID::unchecked_call == false);
-            CallRet ret = std::__invoke(ptr, object_cast(object), arg_cast(a0));
-            assert(ID::checkCalled(ret));
-        }
-#if TEST_STD_VER >= 11
-        {
-            static_assert((std::is_same<
-                decltype(std::__invoke_constexpr(ptr, object_cast(object), arg_cast(a0)))
-              , CallRet>::value), "");
-            assert(ID::unchecked_call == false);
-            CallRet ret = std::__invoke_constexpr(ptr, object_cast(object), arg_cast(a0));
-            assert(ID::checkCalled(ret));
-        }
-#endif
-    }
-
-    template <class MethodPtr, class ObjectT>
-    void runTestImp(Int<2>, MethodPtr ptr, ObjectT& object) {
-        {
-            static_assert((std::is_same<
-                decltype(std::__invoke(ptr, object_cast(object), arg_cast(a0), arg_cast(a1)))
-              , CallRet>::value), "");
-            assert(ID::unchecked_call == false);
-            CallRet ret = std::__invoke(ptr, object_cast(object), arg_cast(a0), arg_cast(a1));
-            assert(ID::checkCalled(ret));
-        }
-#if TEST_STD_VER >= 11
-        {
-            static_assert((std::is_same<
-                decltype(std::__invoke_constexpr(ptr, object_cast(object), arg_cast(a0), arg_cast(a1)))
-              , CallRet>::value), "");
-            assert(ID::unchecked_call == false);
-            CallRet ret = std::__invoke_constexpr(ptr, object_cast(object), arg_cast(a0), arg_cast(a1));
-            assert(ID::checkCalled(ret));
-        }
-#endif
-    }
-
-    template <class MethodPtr, class ObjectT>
-    void runTestImp(Int<3>, MethodPtr ptr, ObjectT& object) {
-        {
-            static_assert((std::is_same<
-                decltype(std::__invoke(ptr, object_cast(object), arg_cast(a0), arg_cast(a1), arg_cast(a2)))
-              , CallRet>::value), "");
-            assert(ID::unchecked_call == false);
-            CallRet ret = std::__invoke(ptr, object_cast(object), arg_cast(a0), arg_cast(a1), arg_cast(a2));
-            assert(ID::checkCalled(ret));
-        }
-#if TEST_STD_VER >= 11
-        {
-            static_assert((std::is_same<
-                decltype(std::__invoke_constexpr(ptr, object_cast(object), arg_cast(a0), arg_cast(a1), arg_cast(a2)))
-              , CallRet>::value), "");
-            assert(ID::unchecked_call == false);
-            CallRet ret = std::__invoke_constexpr(ptr, object_cast(object), arg_cast(a0), arg_cast(a1), arg_cast(a2));
-            assert(ID::checkCalled(ret));
-        }
-#endif
-    }
-
-    //==========================================================================
-    //                       BULLET 7 TEST METHODS
-    //==========================================================================
-    template <class ObjectT>
-    void runTestImp(Int<0>, ObjectT& object) {
-        {
-            static_assert((std::is_same<
-                decltype(std::__invoke(object_cast(object)))
-              , CallRet>::value), "");
-            assert(ID::unchecked_call == false);
-            CallRet ret = std::__invoke(object_cast(object));
-            assert(ID::checkCalled(ret));
-        }
-#if TEST_STD_VER >= 11
-        {
-            static_assert((std::is_same<
-                decltype(std::__invoke_constexpr(object_cast(object)))
-              , CallRet>::value), "");
-            assert(ID::unchecked_call == false);
-            CallRet ret = std::__invoke_constexpr(object_cast(object));
-            assert(ID::checkCalled(ret));
-        }
-#endif
-    }
-
-    template <class ObjectT>
-    void runTestImp(Int<1>, ObjectT& object) {
-        {
-            static_assert((std::is_same<
-                decltype(std::__invoke(object_cast(object), arg_cast(a0)))
-              , CallRet>::value), "");
-            assert(ID::unchecked_call == false);
-            CallRet ret = std::__invoke(object_cast(object), arg_cast(a0));
-            assert(ID::checkCalled(ret));
-        }
-#if TEST_STD_VER >= 11
-        {
-            static_assert((std::is_same<
-                decltype(std::__invoke_constexpr(object_cast(object), arg_cast(a0)))
-              , CallRet>::value), "");
-            assert(ID::unchecked_call == false);
-            CallRet ret = std::__invoke_constexpr(object_cast(object), arg_cast(a0));
-            assert(ID::checkCalled(ret));
-        }
-#endif
-    }
-
-    template <class ObjectT>
-    void runTestImp(Int<2>, ObjectT& object) {
-        {
-            static_assert((std::is_same<
-                decltype(std::__invoke(object_cast(object), arg_cast(a0), arg_cast(a1)))
-              , CallRet>::value), "");
-            assert(ID::unchecked_call == false);
-            CallRet ret = std::__invoke(object_cast(object), arg_cast(a0), arg_cast(a1));
-            assert(ID::checkCalled(ret));
-        }
-#if TEST_STD_VER >= 11
-        {
-            static_assert((std::is_same<
-                decltype(std::__invoke_constexpr(object_cast(object), arg_cast(a0), arg_cast(a1)))
-              , CallRet>::value), "");
-            assert(ID::unchecked_call == false);
-            CallRet ret = std::__invoke_constexpr(object_cast(object), arg_cast(a0), arg_cast(a1));
-            assert(ID::checkCalled(ret));
-        }
-#endif
-    }
-
-    template <class ObjectT>
-    void runTestImp(Int<3>, ObjectT& object) {
-        {
-            static_assert((std::is_same<
-                decltype(std::__invoke(object_cast(object), arg_cast(a0), arg_cast(a1), arg_cast(a2)))
-              , CallRet>::value), "");
-            assert(ID::unchecked_call == false);
-            CallRet ret = std::__invoke(object_cast(object), arg_cast(a0), arg_cast(a1), arg_cast(a2));
-            assert(ID::checkCalled(ret));
-        }
-#if TEST_STD_VER >= 11
-        {
-            static_assert((std::is_same<
-                decltype(std::__invoke_constexpr(object_cast(object), arg_cast(a0), arg_cast(a1), arg_cast(a2)))
-              , CallRet>::value), "");
-            assert(ID::unchecked_call == false);
-            CallRet ret = std::__invoke_constexpr(object_cast(object), arg_cast(a0), arg_cast(a1), arg_cast(a2));
-            assert(ID::checkCalled(ret));
-        }
-#endif
-    }
-};
-
-#endif // INVOKE_HELPERS_H