I implemented ++ for a simple class and got 17.
class A
{
public :
int val;
A(int v):val(v){}
int operator++()
{
cout <<"empty arg called\n";
return ++val;
}
int operator++(int x)
{
cout <<x<<":arged arg called\n";
return val++;
}
};
------------------
A b(4);
cout <<++a + ++a +a++<<endl;
------------
17
but story is different for your sample.
let me tell the fact with a simpler problem :
int b=4;
cout << ++b + ++b ;
will print 12 instead of 11!
amazing huh ?
what happens from right to left is :
in the right statement : b becomes 5:
in the left statement : b becomes 6 ( now be is 6 in both sides !)
so right_b + left_b = 6+6 = 12
Regards
On Tue, May 29, 2012 at 11:43 PM, Prateek Jain <prateek10011...@gmail.com>wrote:
> how is it 6?
> ++a(5) + ++a(6) + a++(6) it shud be 17
>
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