Re: [PATCH v2 2/3] winex11.drv: avoid passing NULL to memcpy (clang)

[Alexandre Julliard]

Kirill Smirnov  writes:
> @@ -92,7 +92,8 @@ static void X11DRV_ImmSetInternalString(DWORD dwOffset,
>      ptr_new = CompositionString + byte_offset;
>      memmove(ptr_new + byte_length, ptr_new + byte_selection,
>              dwCompStringLength - byte_offset - byte_selection);
> - memcpy(ptr_new, lpComp, byte_length);
> - /* Do not pass NULL even if the length == 0 */
> - if (lpComp) memcpy(ptr_new, lpComp, byte_length);
> dwCompStringLength += byte_expansion;

Why would that be a problem?