Steven Schveighoffer:
Interesting problem.
And it's not an academic one, I have already faced it two or three times :-)
Given that it is a forward range, a zip between it and a saved copy that is advanced by one may work.
This compiles and gives the expected output, but how do you extract the last item with this?
seq.zip(seq.dropOne).writeln;I have written I've added an ER to Phobos with some preliminary code:
https://issues.dlang.org/show_bug.cgi?id=12564 Bye, bearophile
