back_const.rar_back

//===----------------------------------------------------------------------===// // // 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> // shared_ptr // template<class Y, class D> void reset(Y* p, D d); #include <memory> #include <cassert> #include "../test_deleter.h" struct B { static int count; B() {++count;} B(const B&) {++count;} virtual ~B() {--count;} }; int B::count = 0; struct A : public B { static int count; A() {++count;} A(const A&) {++count;} ~A() {--count;} }; int A::count = 0; int main() { { std::shared_ptr<B> p(new B); A* ptr = new A; p.reset(ptr, test_deleter<A>(3)); assert(A::count == 1); assert(B::count == 1); assert(p.use_count() == 1); assert(p.get() == ptr); test_deleter<A>* d = std::get_deleter<test_deleter<A> >(p); assert(test_deleter<A>::count == 1); assert(test_deleter<A>::dealloc_count == 0); assert(d); assert(d->state() == 3); } assert(A::count == 0); assert(test_deleter<A>::count == 0); assert(test_deleter<A>::dealloc_count == 1); { std::shared_ptr<B> p; A* ptr = new A; p.reset(ptr, test_deleter<A>(3)); assert(A::count == 1); assert(B::count == 1); assert(p.use_count() == 1); assert(p.get() == ptr); test_deleter<A>* d = std::get_deleter<test_deleter<A> >(p); assert(test_deleter<A>::count == 1); assert(test_deleter<A>::dealloc_count == 1); assert(d); assert(d->state() == 3); } assert(A::count == 0); assert(test_deleter<A>::count == 0); assert(test_deleter<A>::dealloc_count == 2); }