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From: Tim Rentsch <tr.17687@z991.linuxsc.com>
Newsgroups: comp.lang.c
Subject: Re: Libraries using longjmp for error handling
Date: Fri, 29 Sep 2023 08:19:37 -0700
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Anton Shepelev <anton.txt@gmail.moc> writes:

> Kaz Kylheku to Ben Bacarisse:
>
>>> OK, I see the point -- the ptr member in the returned
>>> value is sort of an anonymous object -- but in my
>>> opinion it's a stretch.
>>
>> I think the point is that Anton should find the existence
>> of all anoymous temporary objects repugnant, not just the
>> more recently introduced ones.
>
> In that case, I see it as more or less a named object, its
> name being the `ptr' field qualified by the function
> invocation.  Otherwise, I should find repugnant even simple
> expressions, like:
>
>    res = sqr(x) + sqr(y);
>
> where the return value of sqr() is techically some sort of
> anonymous object, right?  [...]

No, it isn't.  The result of calling sqr(x) is a value, not
an object.  All objects have an address;  the result of sqr(x)
does not.  In an expression like 3+4, the 3 and the 4 are
values, not objects.  That is one reason why the distinction
between constants, which are values and not objects, and
literals, which are anonymous objects, is important.