On Friday, 16 March 2018 at 08:07:09 UTC, Jonathan M Davis wrote:
For instance, std.array.Appender is an output range, and you get a dynamic array out of it, which would be an input range. So, if you have control over what output range you're dealing with, the simplest would be to just use Appender.
I think it's worth warning that appending on an array may invalidate all copies of it. Meaning that you should not append on an array while you're iterating over it, unless iterating by the original copy of the array. Note that foreach loop copies the range by default. Pass refRange(*array) to foreach instead.
