Question

suppose I have this vector

vector<Object> m;

and then I have the following assignments:

vector<Object> o = m;
vector<Object> k = &m;

vector o will be a COPY of vector m whereas vector k will point to the exact same object as vector m….am I right?

in other words, if I go, o.push_back(something), this will modify vector o but not vector m whereas if I go k.push_back(something), this will indeed modify vector m.

am I wrong or right?

Answer 1

Right for o, wrong for k.

vector<Object> k = &m;
//                 ^^ -- you're taking the address of m here

To make a reference, use

vector<Object>& k = m;
//            ^ -- this makes a reference