On Feb 04 2021, David Brown wrote: > For the built-in comma operator, you get guaranteed order of evaluation > (or more precisely, guaranteed order of visible side-effects). But for > a user-defined comma operator, you do not - until C++17, which has > guaranteed evaluation ordering in some circumstances.
But not the evaluation order of function arguments. See <https://en.cppreference.com/w/cpp/language/eval_order> Sequenced-before rules, rule 15. > Try your test again with "-std=c++17" or "-std=g++17" - if the order is > still reversed, it's a gcc bug (AFAICS). I don't think so. Andreas. -- Andreas Schwab, sch...@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different."