typedef, template, and pointer to vector

18 Jul 2003

      Hi,

Why this code won't compile?
#include <iostream>
#include <vector>
using namespace::std;

template<typename T>
class Entry {
    public:
        T data;
};

int main() {
    typedef Entry<int> ei;

    vector* v = new vector();

    ei* ONE = new ei();
    ONE->data = 1;
    v->push_back(ONE);

    ei* tmp = v[0];         //Error here...
    cout << tmp->data << endl;

    return 0;
}

When I compiled the above code:
   test2.cpp:20: error: cannot convert `std::vector >' to `main()::ei*' in initialization

However, if I change v to nonpointer (i.e. vector v), that code
will compile. Any ideas?

TIA.

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