Resizing array of pointers to objects

[cdf]

When resizing an array of pointers to objects, how do I define the array, and how do I copy the objects from 1 array to another.


defining in header of Parent:

Child *init;

then in the Parent constructor, allocating memory for 10 Child objects:
Child = new *init [10];

and finally a function for resizing:

Child *temp [20];
for ( i=0 ; i<10 ; i++ )
    {
         temp[i] = init[i]; // should I use assignment operator
         temp[i](init[i]);  // or overloaded copy constructor?
    }
    
delete [] init; 

Child init = new Child[20];
//then same as above, for (i=0....) 

This is just the core of everything, I can figure the rest of it myself, I just need the defining and basic logic.
Thanks

[vlad from moscow]

What is "overloaded copy constructor"? Does it mean that you need to define some default arguments for your overloaded copy constructor?

Your example is incorrect. This definition

Child = new *init [10];

will issue an error because the type of allocated array is unknown. What are Child and init?!

[cdf]

Parent and Child are classes.
init would be the array that we use for the program, temp would be used for resizing. I know it is incorrect that is why I am asking how to do this - define and resize (copy).

Copy constructor is a constructor that accepts another object.

Class ob1("parametar");
Class ob2(ob1); //ob2=ob1

[viliml]

OOOOOhhh. OK, let's start from the beggining. In the first line of code, there are 2 errors. Really big ones!! First of all, you cant assign ANYTHING to a class. Second of all, arrays aren't types! So, switch the names

Child

and

init

to get init=new Child*[10]. Then, in the next snippet, you CAN'T use a constructor (ANY constructor!) on an already constructed object!!! I suggest this: http://www.cplusplus.com/doc/tutorial/classes/