How to iterate over the template list in variadic templates [duplicate]

This question already has an answer here:

• iterating over variadic template's type parameters 2 answers

I'm trying to write a generic function with the following idea :

template<typename... T>
void allocateArrays (int count, int N, void** &pointers) {
    pointers = new void*[N];
    for (int i = 0; i < N; ++i) {
        pointers[i] = malloc((sizeof(T[i])) * count);        
    }
}

Means, I want to get the type of a particular T on every iteration and call the sizeof function over it. But I'm not able to get how to do it exactly.