Hi,

In message "[ruby-talk:15254] Re: Discussion on new Ruby features"
    on 01/05/16, Stefan Nobis <stefan / snobis.de> writes:

|What about only make it an option to not only overwrite operator + but also to
|overwrite operator +=. So if anyone is concerned about speed, he may overwrite
|+ and += and the rest can just work with overwriting operator +. So if Ruby
|finds only operator +, everything works just like it does now, but Ruby now
|looks, if it can find operator +=, this one is used and it is not
|automatically generated.

Why hate "<<" so much?  I think it's good to mention side effect
explicitly in code appearance.

							matz.