Idea: swap with multiple arguments

Andrei Alexandrescu via Digitalmars-d digitalmars-d at puremagic.com
Mon May 23 15:22:12 PDT 2016


On 05/23/2016 04:27 PM, Steven Schveighoffer wrote:
> On 5/23/16 4:01 PM, Andrei Alexandrescu wrote:
>> So swap(a, b) swaps the contents of a and b. This could be easily
>> generalized to multiple arguments such that swap(a1, a2, ..., an)
>> arranges things such that a1 gets an, a2 gets a1, a3 gets a2, etc. I do
>> know applications for three arguments. Thoughts? -- Andrei
>
> One thing that screams out to me: this should be called rotate, not swap.

Problem is the usefulness peaks at 2-3 args, and for 2 and 3 arguments 
"rotate" is overkill. -- Andrei


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