writeln, UFCS and flip

[Tyro[17]]

On 4/26/13 4:15 PM, bearophile wrote:
> Tyro[17]:
>
>> > While flip2 does:
>> >
>> > flip2!foo(a, b, c) === foo(b, a, c)
>> > flip2!foo(a, b, c, d) === foo(b, a, c, d)
>>
>> and this rotate....
>
> Really? Just swapping the first two arguments and leaving the others at
> their place is for a "rotate"?
>

Actually, by brain was thinking it but my eyes saw something completely 
different. You are correct, this what I would expect flip to do. Thanks.

>> Why flip in the first place?
>
> I don't know, it's the name used in the Haskell Prelude.
>
> Bye,
> bearophile