Reply to noobie,

Andrei Alexandrescu Wrote:

int[] arr = [ 1, 2, 3, 4 ];
auto squares = map!("a * a")(arr);
arr[] = [ 5, 6, 7, 8 ];
Now iterating squares will see different numbers than the original
ones.

Okay, what is the problem in maintaining a reference to the original
array values?


that is the problem. "arr[]" is a content copy not a reference copy.


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