How should I return multiple const values from a function?

[Charles Hixson]

On 1/2/23 17:56, Paul Backus via Digitalmars-d-learn wrote:
> return Tuple!(const(Key), const(Value))(k, v); 

Great!  OK, now the code is:

     auto    findFirst ()
     {    if    (root is null)
         {    Key k    =    Key.init;
             Val v    =    Val.init;
             return Tuple!(const(Key), const(Val))(k, v);
         }
         Node    n    =    root;
         while (n.lft !is null)    n    =    n.lft;
         auto k    =    cast(const)(n.key);
         auto v    =    cast(const)(n.val);
         return Tuple!(const(Key), const(Val))(k, v);
     }    //nd    bool    findFirst (out Key k, out Val v)
I couldn't show that previously because the various things I was trying 
were too different.

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