I'd like to evaluate values lazily and then process them one by
one, using e.g. `map`. One of the steps requires processing the
values in chunks. I was thinking of using a Generator for lazy
evaluation, but I can't seem to make it work with the `chunks`.
How can I make `std.range.chunks` work with a generator?
import std.stdio;
import std.concurrency: Generator, yield;
import std.range:chunks;
import std.algorithm:map;
void main()
{
auto gen = new Generator!int(
{
foreach (i; 1 .. 10)
yield(i);
});
foreach (n; chunks(gen, 2))
{
writeln(n);
}
}
Build fails with the following error:
source/app.d(18,23): Error: template std.range.chunks cannot
deduce function from argument types !()(Generator!int, int),
candidates are:
/usr/include/dmd/phobos/std/range/package.d(6940,15):
std.range.chunks(Source)(Source source, size_t chunkSize) if
(isForwardRange!Source)
dmd failed with exit code 1.
