Delegates and values captured inside loops

[An Pham]

On Saturday, 20 January 2024 at 15:59:59 UTC, Anonymouse wrote:
> I remember reading this was an issue and now I ran into it 
> myself.
>
> ```d
> import std.stdio;
>
> void main()
> {
>     auto names = [ "foo", "bar", "baz" ];
>     void delegate()[] dgs;
>
>     foreach (name; names)
>     {
>         dgs ~= () => writeln(name);
>     }
>
>     foreach (dg; dgs)
>     {
>         dg();
>     }
> }
> ```
>
> Expected output: `foo`, `bar`, `baz`
> Actual output:   `baz`, `baz`, `baz`
>
> If I make `names` an `AliasSeq` it works, but I need it to be a 
> runtime array.
>
> Is there a workaround?

It is broken by design and the upper afraid to fix it because of 
broken backward compatible.
This symptom was same as early C# and MS acknowledge it and fixed 
it
Happy coding