#include <cassert>
#include <memory>
#include <new>

struct Deallocate {
    void operator()(void* p) const noexcept { ::operator delete(p); }
};
struct Token {
    static int alive;
    int value;
    explicit Token(int n) noexcept : value(n) { ++alive; }
    ~Token() noexcept { --alive; }
};
int Token::alive = 0;

int main() {
    std::unique_ptr<void, Deallocate> storage(::operator new(sizeof(Token)));
    assert(Token::alive == 0);
    Token* token = ::new (storage.get()) Token(7);
    assert(Token::alive == 1 && token->value == 7);
    token->~Token();
    assert(Token::alive == 0);
}