Unordered Element Pairs of a Range

2015-09-07 Thread Nordlöw
Is there a range in Phobos for accessing all unordered combinations of a range as: foreach (const i, const a; r) { for (auto j = i + 1; j < r.length; ++j) { const b = r[j]; // Use a and b } } excluding self-pairs, that is i != j

Re: Unordered Element Pairs of a Range

2015-09-07 Thread cym13 via Digitalmars-d-learn
On Monday, 7 September 2015 at 09:06:05 UTC, Nordlöw wrote: Is there a range in Phobos for accessing all unordered combinations of a range as: foreach (const i, const a; r) { for (auto j = i + 1; j < r.length; ++j) { const b = r[j]; // Use a and b } } excluding self

Re: Unordered Element Pairs of a Range

2015-09-07 Thread Nordlöw
On Monday, 7 September 2015 at 09:12:53 UTC, cym13 wrote: There is an open bug for that https://issues.dlang.org/show_bug.cgi?id=6788 Thanks. So I construct a pairwise range with two implementation cases one for RandomAccessRange and one for InputRange https://github.com/nordlow/justd/blob/