Re: Error: cannot implicitly convert expression this.aa of type inout(string[string]) to string[string]

[Simen Kjærås via Digitalmars-d-learn]

On Thursday, 15 March 2018 at 12:00:08 UTC, Robert-D wrote:
I want the function to create a mutable copy from a const or a 
imutable

Like this:

void main() {
    const S s = S(["": ""]);
    S b = s.dup();
}

How can i do that?

In that case, the problem is that you also have to .dup the aa:

    S dup() const pure {
        return S(aa.dup);
    }

However, it seems aa.dup returns the wrong type - one would 
expect V[K] for inout(V[K]), but it returns inout(V)[K], or 
inout(string)[string], in your case. That's apparently a known 
bug: https://issues.dlang.org/show_bug.cgi?id=14148.

The solution for now, then, is this:

    S dup() const pure {
        return S(cast(string[string])aa.dup);
    }

--
  Simen