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From: Keith Thompson <kst-u@mib.org>
Newsgroups: comp.lang.c
Subject: Re: A glitch regarding the usual malloc() idiom
Date: Sun, 24 Jul 2016 14:17:03 -0700
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Tim Rentsch <txr@alumni.caltech.edu> writes:
> Keith Thompson <kst-u@mib.org> writes:
[...]
>> It's not about lvalues.  The &, *, +, -, ~, and ! unary operators
>> do not require an lvalue operand.
>>
>> [...]
>
> The unary & operator almost requires an lvalue, at least
> implicitly.  The only exception is expressions of function type,
> which are kind of "lvalues for functions".  And & is like {++,--}
> in that applying & to a cast expression is never valid.

You're right, of course; I just missed that.

> All of that is incidental to your point, I just thought it might
> be interesting.

Indeed.  And my previous statement still applies to unary *, +, -,
~, and !.

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something.  This is something.  Therefore, we must do this."
    -- Antony Jay and Jonathan Lynn, "Yes Minister"