On Sunday, 13 January 2013 at 12:34:38 UTC, bearophile wrote:
(By the way, what's the API of your functions? In similar
generators I usually add a boolean doCopy template argument,
that defaults to true. If it's true, the generator yields
different buffers, otherwise it yields always the same modified
buffer. This allows to have both convenience & safety on
default, and speed on request).
Interesting.
I do empathize with having convenience and safety by default and
speed on demand, but in this case I worry about the performance
lost by not having speed as the default, especially since I
imagine that most of the time the safety is unneeded.
If speed is the default then the template parameter is unneeded
since you can just do permutations(r).map!array(). This is what I
currently do.
