On Wednesday, September 14, 2011 06:09:52 bearophile wrote: > %u: > > i have qustion why filter can't return int[] > > Because a lazy filter is handy, you often don't need a real array result, a > lazy sequence is enough. A lazy sequence avoids the memory allocation of > the output array. In D programs often the slowest parts are the memory > allocations. On the other hand I have asked to add amap/afilter functions > that return arrays. Andrei has not answered about this yet.
What would that gain you over passing the result of map or filter to std.array.array? - Jonathan M Davis
