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From: Keith Thompson <Keith.S.Thompson+u@gmail.com>
Newsgroups: comp.lang.c++
Subject: Re: What is the data structure of a NULL?
Date: Sat, 28 Dec 2019 02:14:11 -0800
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T <T@invalid.invalid> writes:
> In C++, when you make a call to Windows Kernel32.dll
> and it wants a NULL for one or more of its parameters,
> what exactly is the structure of a NULL?  A 32 bit
> word full of zeros?

You might get better answers if you explained why you want to know.

If you're making a call from C++, you can just pass a null pointer
value such as nullptr or NULL.  The compiler needs to know how
it's represented.  You probably don't.

-- 
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
    [Note updated email address]
Working, but not speaking, for Philips Healthcare
void Void(void) { Void(); } /* The recursive call of the void */