How to access the contents of a vector from a pointer to the vector in C++?

Question

I have a pointer to a vector. Now, how can I read the contents of the vector through pointer?

Answer 1

Access it like any other pointer value:

std::vector* v = new std::vector();

v->push_back(0);
v->push_back(12);
v->push_back(1);

int twelve = v->at(1);
int one = (*v)[2];

// iterate it
for(std::vector::const_iterator cit = v->begin(), e = v->end; 
    cit != e;  ++cit)
{
    int value = *cit;
}

// or, more perversely
for(int x = 0; x < v->size(); ++x)
{
    int value = (*v)[x];
}

// Or -- with C++ 11 support
for(auto i : *v)
{
   int value = i;
}