Re: [PATCH v13 0/5] MR10673: oleaut32: Fix Null handling in three-valued logical ops.

[Jacek Caban (＠jacek)]

Jacek Caban (@jacek) commented about dlls/oleaut32/variant.c:
> -         */
> +        /* Three-valued logic for `And` with Null:
> +         *   zero    And Null = zero  (typed by the resvt computed above)
> +         *   nonzero And Null = Null
> +         *   Null    And Null = Null
> +         *
> +         * Both orderings must produce the same result. */
> +        VARIANT *other;
> +        VARTYPE othervt;
> +        BOOL nonzero = FALSE;
> +
> +        if (leftvt == VT_NULL && rightvt == VT_NULL)
> +        {
> +            V_VT(result) = VT_NULL;
> +            goto VarAnd_Exit;
> +        }
> This does not need to be a special case. It will fallback to detault switch case anyway.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/10673#note_138752