Converting between C++ std::vector and C array without copying

Question

I would like to be able to convert between std::vector and its underlying C array int* without explicitly copying the data.

Does std::vector provide access to the u

Answer 1

One way of protecting yourself against size changes is to reserve the maximal space (or larger) that you will need:

std::vector v(4,100); //Maybe need 
v.reserve(40);             //reallocate to block out space for 40 elements

This will ensure that push_backs won't cause reallocation of the existing data.