RFH: *ReAlloc* mess

[Dimitrie O. Paun]

Hi folks,

I need some help to figure out how the following
realloc functions behave:

GlobalReAlloc
    LocalReAlloc
    Local32ReAlloc16
    NetApiBufferReallocate
    SysReAllocStringLen

So, I need to know:
    -- do they allocate memory when a NULL is passed in?
    -- do they free memory when the size is passed in as 0?

Help with this matter is much appreciated!