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From: Keith Thompson <Keith.S.Thompson+u@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: iso646.h
Date: Mon, 22 Jan 2024 13:22:41 -0800
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Lawrence D'Oliveiro <ldo@nz.invalid> writes:
> On Mon, 22 Jan 2024 16:24:36 GMT, Scott Lurndal wrote:
>> Although it was available before 1999 - the SVR4 C compilation System
>> (CCS) had an iso6[4]6.h header file in the early 90's.
>
> By the way, why is it called “iso646.h”?

ISO 646 is the ISO standard for the ASCII 7-bit character set.  The
header's original intent was to make C programming easier on systems
that don't support all ASCII characters, either because they use EBCDIC
or because they use 7-bit character sets that replace some puncutation
characters with, for example, accented letters.

As for "and" being more readable than "&&", that's not necessarily the
case for people who are accustomed to reading C code.

-- 
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
Working, but not speaking, for Medtronic
void Void(void) { Void(); } /* The recursive call of the void */