Dynamic Array

[Emiyou]

Hi everyone.
I've been trying to write a code that do the following
The user write a number of words
The program store every word in memory
Here's the code i wrote :

 bool more=true;
    int d;
    char ch1[40],ch2[40],ch3[1];
    cout<<"Enter a word in capitals : \n";
    cin>>ch1;
    Darray T(ch1);
    while(more==true)
        {
            cout<<"More words ? (y/n)"<<"\n";
            cin>>ch3;
            if(ch3[0]=='y')
             {
                 cout<<"Enter a word in capitals : \n";
                 scanf("%s",&ch2);
                 T.Add(ch2);
                 cout<<"*********************************************************** \n";
                  T.print();

             }

class Darray
{
private:
    char word[20];
    char** T;
    int c;
public:
    Darray(char ch[20])      //Constructor of the class.
    {
        this->c=1;
        this->T=new char*[1];
        T[0]=ch;
    }
    void Add(char ch[20])  //Function to add elements to the array
    {
        char** P;
        P=new char*[c+1];
        for(int i=0;i<c;i++)
            {
                P[i]=T[i];
            }
        P[c]=ch;
        free(T);
        T=P;
        c++;
    }
    void print()      //Print the element of the array to the screen
    {
        for(int i=0;i<c;i++)
            {
                cout<<T[i]<<"\n";
            }
    }

};

The problem is when i run it: it goes
Word1
Word2
The first time and :
Word1
Word3
Word3
The second time.
It's like if the second word was replaced by the third.
Thanks everybody.

[keskiverto]

The line 15 calls the Add() with same address (ch2) every time. Every pointer in T.T (except the first) thus points to the same C-string (ch2).

Line 14 overwrites the content of ch2 on every iteration.

Why don't you use std::string and std::vector<std::string>? Why do you use scanf(), when you also use std::cin?


Edit: Trivia question. What is utterly wrong in line 43, when lines 31 and 37 use new?