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From: Keith Thompson <kst-u@mib.org>
Newsgroups: comp.lang.c
Subject: Re: Why I use gcc
Date: Fri, 07 Oct 2016 12:25:32 -0700
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BartC <bc@freeuk.com> writes:
[...]
> Type-qualifiers seem be 'const' and 'volatile'. Trouble is I've no idea 
> where they go either! Especially in relation to functions as they 
> wouldn't make sense there.
[...]

The type qualifiers are const, restrict, volatile, and _Atomic.

The grammar permits "const", for example, on a function type:

    const int func(void);

but it's ignored.  (I think the same is true for the other type
qualifiers, but I haven't checked.)  But a function returning a
pointer-to-const is perfectly sensible:

    const int *func(void);

-- 
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"