Say we have this for instance:
string* p;
p = new string[2];
p[0] = "Aa";
p[1] = "Bb";
What I understand: I need to create a temp dynamic array to store what p has, delete p, and then create a new p with a row 1 size bigger than temp, and then copy temp into p.
What I do not understand: How would I increase the size of p WITHOUT knowing the original rowsize (in this case 2) and still keep the original data. I've read about doing tricks such as (sizeof(array)/sizeof(dataType)), but since I have a dynamic array, I have no idea how to find it's size. realloc would format my original data, plus it acts funny with strings.
Just a heads up: I do not want to use any form of linked lists, vectors, or things of that nature.
You can do the following:
string* p;
p = new string[2];
p[0] = "Aa";
p[1] = "Bb";
string* reallocated = new string[3];
std::copy(p,p+2,reallocated); // Save your original values
delete[] p; // release formerly allocated memory
p = reallocated; // Assign newly allocated memory
p[2] = "Cc"; // Add some additional element
Anyhow, I can't see a point, to do this in preference of simply using a std::vector<std::string>>.