Re: Interval Comparisons

Lawrence D'Oliveiro <ldo@nz.invalid> writes:

On Fri, 7 Jun 2024 01:52:34 +0100, bart wrote:

The 'a=b' (that's equality)

>
Not in C it isn’t.

Of course not.  You snipped the part where Bart very clearly said that
he was talking about his own scripting language.  And we're talking
about a proposed new C feature, so I have no problem with references to
other languages.

And there's precedent in other languages (Python, as Bart already
pointed out) for `a == b < c` being equivalent to `a == b && b < c`,
but with b evaluated only once.

*If* C were to adopt chained comparisons, I would have no problem
with `a == b < c` being supported with the obvious meaning.
I dislike arbitrary restrictions.  (Though the fact that == and
< have different precedences would have to be resolved somehow.)
In principle it could quietly change the behavior of existing code,
but it's likely that most such code was already wrong.  I don't
advocate making such a change, and I don't think it's likely to
happen, I wouldn't object to it.

--
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
void Void(void) { Void(); } /* The recursive call of the void */