auto_pointer02.fail.cpp [plain text]
#include <memory>
#include <cassert>
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;
struct Deleter
{
template <class T>
void operator()(T*) {}
};
int main()
{
{
B* p = new B;
std::auto_ptr<B> ap(p);
std::unique_ptr<A, Deleter> up(ap);
assert(up.get() == p);
assert(ap.get() == 0);
assert(A::count == 1);
assert(B::count == 1);
}
assert(A::count == 0);
assert(B::count == 0);
}