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Aah, I understand now. Thank you very much.

So the dynamic memory is used while the program is running, and I can delete it before the program ends, so while system("pause") is keeping the program...

Thanks for the reply.

Because its the end of the program. How the compiler know to delete the memory for other variables for example?

Hi!

I want to ask you why when I write something in file it deletes everything inside.

For ex.



#include <iostream>
#include <fstream>

Thanks for the replies.

So &* makes no sense, right?

And why I need to delete it? Doesn't it deletes automatically?

Oh.. I missed that. Thank you very much.



Why my program is not working perfectly?


Also is it same *& and &* ??

Hello! I need help about this problem. I got 4 class, one base class 'Vozilo' (Vehicle), and derived classes 'Avtobus' (Autobus), 'Avtomobil' (Car), 'Kamion' (Truck).


#include<iostream>...

Thank you very much for the help.
Yes I missed Copier (1,2,3) while copying the whole code.

But in the first post with the keyword "virtual" there is not normal inheritance since the first object...

Thanks for the replies. It really helped me.

I got few questions more:

Does the constructor allocates memory for the object of the class?

For example. (if normal inheritance rules apply) :
...

Thanks for the replies.


So constructor do allocate memory for objects right?

In this case the PoweredDevice is created by Copier directly, and then Scanner and Printer inherit the members...

Hello!

I got few things that I do not understand about virtual bases.

I got this code:


class PoweredDevice
{
public:

Does it mean that the compiler does not create copy for the returning object since it already been copied (before passed by value as a parameter to a function and copy constructor called)?

I expect the copy constructor to be called three times, but its called 2 times. Why?

Thanks for the suggestions. Here is the code:

#include <iostream>
using namespace std;


class test
{
int c;

Actually, you're right. I misunderstood the terms 'copy' and 'create' :-).

I got an interesting problem.


test func(test object)
{
return object;
}
test ob=func(ob1);

Here is the code that I worked with:



#include <iostream>

using namespace std;


class test

I was doing a little research and find out when:

I - When an object is created from another object of the same type if I define the copy constructor as (for ex. test ob=ob1):


test(const test...

I noticed when I put class izvedena : public osnovna then the protected member test becomes again protected, but if I put private it becomes private inside the inherited class.

Thanks, it worked.

They are not accessible by any possible way? Is there any way that I can access them?

Thanks for the replies. And why when I put protected it works? Is it inherited like protected member?

I got another question. Why the inherited class does not inherit the private members of the...

I got one question about protected members.

Here is the code:

#include <iostream>

using namespace std;

class osnovna
{

thanks for the reply laserlight. Usually when I go out of bond at some array, I got 13423432 number for the variable. In this case perfectly works, which is strange. Anyway, how to use that vector...

Ok, thank you. And you mean that by not defining how many objects should be used (pokazuvac=new objekat[20]) there could be memory overflow?? I think the compiler should prevent this stuff.

What is heap? Is it a large pool of unused memory ?

I got one code:


#include <iostream>
using namespace std;

class objekat
{
int test;