A non std::vector<> definition

[tomy12]

Hi,

Please take a look at exercise 16 here.

I wrote the code below:

#include <std_lib_facilities_4.h>
using namespace std;

template <class T> class ovector
{
public:
	ovector() = default;   // default constructor
	ovector(const ovector& N)  // Copy constructor
	{
		for (const auto& v : N.vec)
			push_back(new T(*v));
	}

	ovector& operator= (const ovector& N)  // Copy assignment
	{
		auto l = N;
		swap(l.vec, vec);
		return *this;
	}

	~ovector() {
		for (auto ptr : vec)
			delete ptr;
	}

	auto begin() const { return vec.begin(); }
	auto end() const { return vec.end(); }
	auto size() const { return vec.size(); }
	void push_back(T* ptr) { vec.push_back(ptr); }
	void pop_back() { delete vec.back(); vec.pop_back(); }
	void resize(size_t n) { vec.resize(n); }

	T& operator*(size_t pos) { return *vec[pos]; }

	T& operator[] (size_t pos) { return *vec[pos]; }
	const T& operator[] (size_t pos) const { return *vec[pos]; }

private:
	vector<T*> vec; // vector of pointers
};

//***************************************

int main() {

	ovector<double> v1;
	for (size_t i = 0; i < 10; i++)
		v1.push_back(new double(2.5*i));

	cout << "vector<double> v1 = ";
	for (const auto& v : v1)
		cout << *v << ' ';
	cout << endl;
	*v1(0) = 3;
	
     system("pause");
     return 0;
}

I get these errors on line 54 where I want to use the overloaded operator* there:

Severity Code Description Project File Line Suppression State
Error (active) E0980 call of an object of a class type without appropriate operator() or conversion functions to pointer-to-function type

Severity Code Description Project File Line Suppression State
Error C2064 term does not evaluate to a function taking 1 arguments

What the problem could be please?