How do you reference variables in an AA of Variants?

[Ali Çehreli via Digitalmars-d-learn]

On 02/08/2016 07:49 PM, Enjoys Math wrote:
> This:
>          double b = 1.0;
>
>      Variant[string] aa = ["b": &b];
>
>      writeln(aa["b"]);
>
> fails with:
>
> Error: cannot implicitly convert expression(["b":&b]) of type
> double*[string] to VariantN!20u[string]
>
> Helps please!

When initializing the array, you have to use Variant(&b):

import std.stdio;
import std.variant;

void main() {
     double b = 1.5;

     Variant[string] aa = ["b": Variant(&b)];

     writeln(aa);
     writeln(aa["b"]);
     writeln(*aa["b"].get!(double*));
}

Prints something like the following:

["b":7FFD0104B100]
7FFD0104B100
1.5

Ali