Re: Is the other-kind-of-null really necessary in Nullable and Variant?

[deadalnix]

On Sunday, 28 April 2013 at 16:33:19 UTC, Idan Arye wrote:

When you use `std.typecons.Nullable` with a type that already accept `null` values, you get two types of nulls - the `Nullable`'s null state the the regular type's `null`:

    Nullable!string a;
    writeln(a.isNull()); //prints "true"
    a = null;
    writeln(a.isNull()); //prints "false"
    a.nullify();
    writeln(a.isNull()); //prints "true"

All types should be non nullable. Problem solved.