On Sunday, 11 January 2015 at 18:01:09 UTC, bearophile wrote:
Is doCopy really needed as an argument here?
Couldn't this be inferred from the mutability of T instead?
doCopy is useful, if it's true all the permutation arrays are
distinct and dup-ped, otherwise they are all different. It's
true by default, so casual users of that generator will avoid
bugs. You can set it to false to speed up your code.
Couldn't we do a first pass and check that if elements of T are
distinct and if so set doCopy to false otherwise true?
