There is, sigh. operator,() has a special regime among operators. It's called the /sequencing/ operator. It does that, /sequencing/, like a champ. Pretty much nothing else. Other operators don't specify the order of evaluation. This one (and && and ||) does. When overloading it, that important property of operator,() is lost.
Hi Andrei, Sorry for the late reply...computer time is scarce during holidays :-) Let me first say that I agree that my documentation should state that one cannot rely on the evaluation order of expressions in the comma-list, just like in normal functions. If all goes as it should, the user will never handle objects that overload operator, directly. So it shouldn't affect your normal use of operator, at all. btw, the library is now called boost.assign and can already be found in the main cvs under boost/assign and libs/assign The docs are almost done. br Thorsten