Add the defnition to functions add, get, and remove. class List { public: List()

Question

 Add the defnition to functions add, get, and remove. 

 class List { public:         List();         List(int insize);         ~List();         int get(int index) const;         void add(int value);         int getSize() const;         void remove(int index); private:         int *listarray;         int size; }; /*--------------------------Constructs and Destructs------------------------*/ List::List() {         size = 10;               listarray = new int[size]; } List::List(int insize):size(insize) {         listarray = new int[insize]; } List::~List() {         delete [] listarray;         size = 0; } /*--------------------------Get-------------------------*/ int List::getSize() const  {         return size; } /*----------------------Add your code here!!!! -------------* /*---- add---*/ /* adds a value to array at end.   If array is too small, make bigger (size you need +10) new array copy delete old array */ /*-----get---*/ /*return value at position given */ /*------remove----*/ /*Remove value at position Just zero if at end. If in middle, make zero and copy all above down to fill in slots */

Explanation / Answer

Dear,

The following methods are added to make it complete:

void List::add(int value)
{
    int *array = new int[10];
    if( size >10)
    {
    for(int i=0;i<10;i++)
        *(array+i)=*(listarray+i);
    List(20);
    for(int i=0;i<10;i++)
       *(listarray+i)=*(array+i);
    *(listarray+10)=value;
       size++;
    }
    else
        {*(listarray+size)=value;
             size++;}
}
void List::remove(int loc)
{
    //validate location
    if(loc<0 ||loc>size)
        cout<<"Invalid index!!"<<endl;
    //copy all above down to fill in slots
    else
    {    for(int i=loc;i<size-1;i++)
            *(listarray+i)=*(listarray+i+1);
    size--;
    }
}

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