[PATCH v2 2/4] Free the data returned by XGetWindowProperty()

[Jasper St. Pierre]

I thought I remembered something which tried to poke the pointer first
to make it crash if it was NULL, since freeing of a NULL pointer was
considered a bug.

On Thu, May 21, 2015 at 9:34 AM, Emil Velikov <emil.l.velikov at gmail.com> wrote:
> On 21 May 2015 at 17:21, Jasper St. Pierre <jstpierre at mecheye.net> wrote:
>> XFree crashes when passed NULL.
>>
> I've never tried it personally, but it seems that XFree() is a simple
> wrapper around free(), which should work just fine. [1] [2]
> On the other hand $ man 3 XFree clearly states that "NULL pointer
> cannot be passed to this function" :-\
>
> -Emil
>
> [1] http://cgit.freedesktop.org/xorg/lib/libX11/tree/src/XlibInt.c#n1546
> [2] http://cgit.freedesktop.org/xorg/lib/libX11/tree/include/X11/Xlibint.h#n332



-- 
  Jasper