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From: Keith Thompson <kst-u@mib.org>
Newsgroups: comp.lang.c
Subject: Re: C declarations
Date: Wed, 01 Feb 2017 10:44:00 -0800
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BartC <bc@freeuk.com> writes:
[...]
> It doesn't help that so many compilers are happy to ignore what the spec 
> says, and just give a warning.
[...]

The standard only says that a violation of any syntax rule or constraint
results in a diagnostic.  That diagnostic can be a non-fatal warning.
Many compilers provide options to provide more stringent checking, such
as gcc's "-std=c11 -pedantic-errors".

(There's also no requirement that the diagnostic must be clear; that's a
QoI issue.)

-- 
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"