postfix

[pooya]

Hi,

Could someone please explain how the following ends up outputting 0?

#include <iostream>
int main()
{
	int a=0; 
	std::cout << a++ + a++ << std::endl;
	return (0); 
}

I interpret this as follows.
Compiler reads from right to left. So first the a++ on the right gets processed. Since its postfix, operator + gets 0. and then a is set to 1. Now the a++ on the left gets processed. a=1 is passed to +, and then a is incremented by 1 to 2. So the final result should be 1.

cheers,

pooya