Concept on OOPs

#1

Here is the code written, I wanted to that when I am returning from by reference, then it giving some garbage values, but when I am not doing so, it is giving 1 2 3 4 as answer, so how is it? It should give 1234 when returning by reference also but not so why? here is the code:-https://ide.codingblocks.com/s/454677

#2 
 
Test Test::fun()
{
    Test::count++;
    cout << Test::count << " ";
    return *this;
}

this is correct

this is a pointer so it holds the address hence you are returning reference already

what you are doing here send this code also

#3 
Test& Test::fun()
{
	Test::count++;
	cout<<Test::count<<" ";
	return *this;
}

are you talking about this

this also works

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#4

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