> And so many things are just unspecified. I know it's a bad idea, whatever 
> language you use, to rely on the order of evaluation of the argument of a 
> function, but to say "this order may change one day" is to tell 
> industrialists : "if you have some "not so good" programmers, even if you 
> make all the test you want on your program to check it works, one day it may 
> just stop working because we changed the order or evaluation, or worst, a lot 
> of silent bugs can appear". 

I cannot resist to remind you that the order of argument evaluation is
unspecified in C.

Arguably a bad design, but not sufficient to frighten industry.


-- Luc