On Tue, 13 May 2014 18:38:44 +0200 Benjamin Thaut via Digitalmars-d <[email protected]> wrote:
> I know that there was a recent discussion about how the methods of > ranges should behave. > > E.g. > > - Does empty always have to be called before calling front or > popFront? Certainly, ranges are pretty much always used this way, but there was some debate as to whether empty could have work done in it (and thus _had_ to be called). However, I believe that the consensus was that yes, empty had to be called (certainly, both Walter and Andrei felt that way). > - Is it allowed to call front multiple times between two calls to > popFront? Definitely. _Lots_ of range-based code would break otherwise - though there are casese where that can cause problems depending on what you rely on (e.g. map!(a => to!string(a)) will return equal strings, but they aren't the _same_ string). > Was there a result of that discussion? Is it documented somewhere? AFAIK, there's just the semi-recent newsgroup discussion on the matter, though maybe someone put something up on the wiki. - Jonathan M Davis
