[Issue 8155] Deprecate std.range.lockstep

[d-bugmail]

http://d.puremagic.com/issues/show_bug.cgi?id=8155



--- Comment #9 from bearophile_h...@eml.cc 2013-06-28 09:46:37 PDT ---
(In reply to comment #8)

>     auto arr1 = new double[10];
>     foreach(i, ref x; zip(iota(10), arr1))
>     {
>         x = i;
>     }
>     writeln(arr1);
> 
>     auto arr2 = new double[10];
>     foreach(i, ref x; lockstep(iota(10), arr2))
>     {
>         x = i;
>     }
>     writeln(arr2);

Let me add a note. For your specific use case it's better to use enumerate(),
from Issue 5550 :

    auto arr1 = new double[10];
    foreach (i, ref x; arr1.enumerate)
        x = i;
    arr1.writeln;

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