pointer_deleter04.pass.cpp [plain text]
#include <memory>
#include <cassert>
struct A
{
static int count;
A() {++count;}
A(const A&) {++count;}
~A() {--count;}
};
int A::count = 0;
class Deleter
{
int state_;
Deleter(const Deleter&);
Deleter& operator=(const Deleter&);
public:
Deleter() : state_(5) {}
int state() const {return state_;}
void set_state(int s) {state_ = s;}
void operator()(A* p) const {delete [] p;}
};
int main()
{
{
A* p = new A[3];
assert(A::count == 3);
Deleter d;
std::unique_ptr<A[], const Deleter&> s(p, d);
assert(s.get() == p);
assert(s.get_deleter().state() == 5);
}
assert(A::count == 0);
}