On 4 July 2014 08:33, Fabian Cenedese wrote: > >>> Nothing defined >>> implementation of the passage of a function settings. But it turns out that >>> in the case of gcc, they are pushed onto the stack from right to left. >> >>I think it depends on the hardware architecture. >> >>> As it >>> has been since the dawn of time in Savannah, it is definitely impossible to >>> change this state of affairs in gnou. Thus be it! >>> >>> So my question is: reverse the order of parameters (shock me, but) make >>> functional! What about you? Portability? >> >>I don't understand the question. > > He probably means that if he reverses the argument order (like a+=1, b, a) then > he'd get the desired result. But as you mentioned it probably depends on the > hardware and compiler so it is not portable. > > I'd say this is undefined behaviour and could be solved like > c=a; > foo(c, b, a+=1); // order of evaluation not important Agreed, that is a safe and portable way to do it.
