Array index slicing

[Christophe Travert]

"bearophile" , dans le message (digitalmars.D:172300), a écrit :
> If enumerate() is well implemented it's one way to avoid that 
> problem (other solutions are possible), now 'c' gets sliced, so 
> it doesn't start from zero:
> 
> import std.stdio;
> void main() {
>      auto M = [[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]];
>      foreach (r, row; M)
>          foreach (c, ref item; enumerate(row)[1 .. $])
>              item = c * 10 + r;
>      writefln("%(%s\n%)", M);
> }

enumerate could be useful with retro too. You may want to change the 
order of the enumeration, but not the order of the indices.