c++anyways..thnxx guys 4 replyin...
c++thats wat m nt understanding....why does returnd values r sent 2 OS in d first place? wat does opera...
c++does tis means that os checks the return values? if 0 thn program works fine , otherwise error?(in c...
c++i understand that when you return a value,its goes to the OS buh i dnt understand what does OS do wi...