A little of coordination for Rosettacode

[bearophile]

>> But I couldn't figure out how to expand the boolean array to
>> an argument list.

With functions like this my last version will become simpler, and 
it's equally statically type safe:

bool xor(in bool[2] args) pure nothrow {
     return b[0] != b[1];
}


Bye,
bearophile