thanks!
On Sunday, 8 November 2015 22:40:53 UTC-3, Yichao Yu wrote: > > On Sun, Nov 8, 2015 at 8:11 PM, andrew cooke <and...@acooke.org > <javascript:>> wrote: > > I'd like to be able to use take() and all the other iterator tools with > a > > stream of data backed by an array (or string). > > > > By that I mean I'd like to be able to do something like: > > > >> stream = XXX([1,2,3,4,5]) > >> collect(take(stream, 3)) > > [1,2,3] > >> collect(take(stream, 2)) > > [4,5] > > > > Is this possible? I can find heavyweight looking streams for IO, and I > can > > find lightweight iterables without state. But I can't seem to find the > > particular mix described above. > > Jeff's conclusion @ JuliaCon is that it seems impossible to implement > this (stateful iterator) currently in a generic and performant way so > I doubt you will find it in a generic iterator library (that works not > only on arrays). A version that works only on Arrays should be simple > enough to implement and doesn't sound useful enough to be in an > exported API so I guess you probably should just implement your own. > > Ref > https://groups.google.com/forum/?fromgroups=#!searchin/julia-users/iterator/julia-users/t4ZieI2_iwI/3NTw1k406qkJ > > > > > > (I think I can see how to write it myself; I'm asking if it already > exists - > > seems like it should, but I can't find the right words to search for). > > > > Thanks, > > Andrew > > >
