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From: Thiago Adams <thiago.adams@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: Interval Comparisons
Date: Tue, 4 Jun 2024 08:32:52 -0300
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On 04/06/2024 04:14, Lawrence D'Oliveiro wrote:
> Would it break backward compatibility for C to add a feature like this
> from Python? Namely, the ability to check if a value lies in an interval:
> 
>      def valid_char(c) :
>          "is integer c the code for a valid Unicode character." \
>          " This excludes surrogates."
>          return \
>              (
>                  0 <= c <= 0x10FFFF
>              and
>                  not (0xD800 <= c < 0xE000)
>              )
>      #end valid_char

See Chaining Comparisons
https://www.open-std.org/JTC1/SC22/WG21/docs/papers/2018/p0893r0.html


https://medium.com/@barryrevzin/chaining-comparisons-seeking-information-from-the-audience-abec909a1366


I don't know what are the current status of this proposal.