On Thu, 02 Jun 2011 14:17:26 -0400, Andrej Mitrovic <n...@none.none> wrote:
import std.range;
void main()
{
auto arr = [1, 2, 3, 4, 5, 6, 7, 8];
auto foo = cycle(arr);
// nope
foreach (int index, int val; foo)
{
}
// nope
foreach (int index, int val; take(foo, 5))
{
}
// ok
foreach (int index, int val; take(arr, 5))
{
}
}
Is this because cycle is an infinite range, and index might overflow? I
could understand that. But I think if I use take() then there should be
no problem with overflows. It still doesn't work though.
As bearophile says, there is no standard for the index portion of a range
(except for slices, which also happen to be ranges) during foreach.
The reason take(arr, 5) works is because it translates to arr[0..5] which
is a slice.
-Steve
