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From: Keith Thompson <kst-u@mib.org>
Newsgroups: comp.lang.c
Subject: Re: better atoi
Date: Sun, 12 Feb 2017 11:15:37 -0800
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BartC <bc@freeuk.com> writes:
> On 12/02/2017 17:44, Malcolm McLean wrote:
[...]
>> It's useful to have a copy for reference however. Like the
>> dictionary, 99% of it you probably won't read, but still needs to be
>> there.
>
> Yes, so that most compilers can ignore it! Apparently:
>
>    int;
>
> is illegal according to the grammar. Yes out of six compilers I tried, 
> three don't consider that an error, while one just gives a warning.

So four out of the six compilers you tried correctly diagosed the error
(a warning is a valid diagnostic for a syntax error or constraint
violation).  The other two probably are not conforming by default, but
such compilers commonly can be made conforming with appropriate options.

-- 
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"