| //===----------------------------------------------------------------------===// |
| // |
| // 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. |
| // |
| |
| //===----------------------------------------------------------------------===// |
| |
| // <memory> |
| |
| // unique_ptr |
| |
| // Test unique_ptr converting move ctor |
| |
| // NOTE: unique_ptr does not provide converting constructors in c++03 |
| // XFAIL: c++98, c++03 |
| |
| |
| #include <memory> |
| #include <type_traits> |
| #include <utility> |
| #include <cassert> |
| |
| #include "../../deleter.h" |
| |
| // test converting move ctor. Should only require a MoveConstructible deleter, or if |
| // deleter is a reference, not even that. |
| // Explicit version |
| |
| struct A |
| { |
| static int count; |
| A() {++count;} |
| A(const A&) {++count;} |
| virtual ~A() {--count;} |
| }; |
| |
| int A::count = 0; |
| |
| struct B |
| : public A |
| { |
| static int count; |
| B() {++count;} |
| B(const B&) {++count;} |
| virtual ~B() {--count;} |
| }; |
| |
| int B::count = 0; |
| |
| template <class OrigPtr, class NewPtr> |
| void checkDeleter(OrigPtr& O, NewPtr& N, int OrigState, int NewState) { |
| typedef typename NewPtr::deleter_type NewDel; |
| if (std::is_reference<NewDel>::value) { |
| O.get_deleter().set_state(42); |
| assert(O.get_deleter().state() == 42); |
| assert(N.get_deleter().state() == 42); |
| O.get_deleter().set_state(99); |
| assert(O.get_deleter().state() == 99); |
| assert(N.get_deleter().state() == 99); |
| } else { |
| // TODO(EricWF) Enable this? |
| // assert(OrigState != NewState); |
| assert(O.get_deleter().state() == OrigState); |
| assert(N.get_deleter().state() == NewState); |
| } |
| } |
| |
| template <class APtr, class BPtr> |
| void testMoveConvertExplicit() |
| { |
| { // Test explicit constructor |
| BPtr s(new B); |
| A* p = s.get(); |
| APtr s2(std::move(s)); |
| assert(s2.get() == p); |
| assert(s.get() == 0); |
| assert(A::count == 1); |
| assert(B::count == 1); |
| } |
| assert(A::count == 0); |
| assert(B::count == 0); |
| } |
| |
| template <class APtr, class BPtr> |
| void testMoveConvertImplicit() { |
| |
| { // Test implicit constructor |
| BPtr s(new B); |
| A* p = s.get(); |
| APtr s2 = std::move(s); |
| assert(s2.get() == p); |
| assert(s.get() == 0); |
| assert(A::count == 1); |
| assert(B::count == 1); |
| } |
| assert(A::count == 0); |
| assert(B::count == 0); |
| } |
| |
| template <class APtr, class BPtr, class Deleter> |
| #if TEST_STD_VER >= 11 |
| void testMoveConvertExplicit(Deleter&& del) { |
| #else |
| void testMoveConvert(Deleter& del) { |
| #endif |
| int old_val = del.state(); |
| { // Test Explicit constructor |
| BPtr s(new B, std::forward<Deleter>(del)); |
| A* p = s.get(); |
| APtr s2(std::move(s)); |
| assert(s2.get() == p); |
| assert(s.get() == 0); |
| checkDeleter(s, s2, del.state(), old_val); |
| assert(A::count == 1); |
| assert(B::count == 1); |
| } |
| assert(A::count == 0); |
| assert(B::count == 0); |
| } |
| |
| |
| template <class APtr, class BPtr, class Deleter> |
| #if TEST_STD_VER >= 11 |
| void testMoveConvertImplicit(Deleter&& del) { |
| #else |
| void testMoveConvertImplicit(Deleter& del) { |
| #endif |
| int old_val = del.state(); |
| { // Test Implicit constructor |
| BPtr s(new B, std::forward<Deleter>(del)); |
| A* p = s.get(); |
| APtr s2 = std::move(s); |
| assert(s2.get() == p); |
| assert(s.get() == 0); |
| checkDeleter(s, s2, del.state(), old_val); |
| assert(A::count == 1); |
| assert(B::count == 1); |
| } |
| assert(A::count == 0); |
| assert(B::count == 0); |
| } |
| int main() |
| { |
| { |
| typedef std::unique_ptr<A> APtr; |
| typedef std::unique_ptr<B> BPtr; |
| testMoveConvertExplicit<APtr, BPtr>(); |
| testMoveConvertImplicit<APtr, BPtr>(); |
| } |
| { |
| typedef std::unique_ptr<A, Deleter<A> > APtr; |
| typedef std::unique_ptr<B, Deleter<B> > BPtr; |
| Deleter<B> del(5); |
| testMoveConvertExplicit<APtr, BPtr>(std::move(del)); |
| del.set_state(5); |
| testMoveConvertImplicit<APtr, BPtr>(std::move(del)); |
| } |
| { |
| typedef std::unique_ptr<A, NCDeleter<A>& > APtr; |
| typedef std::unique_ptr<B, NCDeleter<A>& > BPtr; |
| NCDeleter<A> del(5); |
| testMoveConvertExplicit<APtr, BPtr>(del); |
| testMoveConvertImplicit<APtr, BPtr>(del); |
| } |
| { |
| typedef std::unique_ptr<A, CDeleter<A> > APtr; |
| typedef std::unique_ptr<B, CDeleter<B>& > BPtr; |
| CDeleter<B> del(5); |
| testMoveConvertImplicit<APtr, BPtr>(del); |
| testMoveConvertExplicit<APtr, BPtr>(del); |
| } |
| } |