On Thursday, 12 July 2012 at 21:18:21 UTC, Steven Schveighoffer
wrote:
If opSlice is to be used, this is how it should go (in order of
precedence):
1. if aggr has opApply or opApplyReverse, use it.
2. if aggr has opSlice, and the result of aggr.opSlice() has
opApply or opApplyReverse, use it.
3. if aggr has opSlice, and the result of aggr.opSlice() has
empty/front/popfront, use it as in your 2a above.
4. if aggr has empty/front/popFront, use it as in your 2b above.
5. static or dynamic array.
I should also note that the existence of opApply should not
preclude later possibilities if that opApply can't compile for
the given foreach parameters.
-Steve
4.1:Make copy first.
