Re: [PATCH 1/2] advapi32/tests: Add tests for hkcr handle mask

[Nikolay Sivov]

On 8/24/2013 07:11, George Stephanos wrote:
> +#define IS_HKCR(hk) ((UINT_PTR)hk > 0 && ((UINT_PTR)hk & 3) == 2)
> -

Why is that important to check? In other words what depends on 
particular value pattern?