From: Andrew Cagney <cagney@gnu.org>
To: Paul Hilfinger <hilfingr@gnat.com>
Cc: gdb-patches@sources.redhat.com
Subject: Re: [RFA]: Remove warnings from ada-exp.tab.c compilation
Date: Wed, 06 Oct 2004 16:29:00 -0000 [thread overview]
Message-ID: <41641D62.4030805@gnu.org> (raw)
In-Reply-To: <20041006094738.A6034F2C9D@nile.gnat.com>
>>> PS:
>>> + tempbuf = (char *) realloc (tempbuf, tempbufsize);
>>> the cast is redundant - realloc returns (void *).
>
>
> Yeah, well, call it a personal quirk, call it an act of rebellion.
> But when I see an ISO standard that tells me I don't need this conversion
> by saying that
>
> "A pointer to void shall have the same representation and
> alignment requirements as a pointer to a character type."
>
> and then tells me IN A FOOTNOTE that
>
> "The same representation and alignment requirements are meant to
> imply interchangeability as arguments to functions, return values
> from functions, and members of unions."
>
> the horror I feel at this shameless confusion of abstraction layers is such
> that I feel compelled to ignore the passages altogether (:->).
You could make up something like an XREALLOC macro (XCREALLOC?) to go
with XMALLOC et.al. That might be needed anyway as while a C compiler
doesn't require the cast, a C++ one does.
whichever,
Andrew
prev parent reply other threads:[~2004-10-06 16:29 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-05 10:37 Paul Hilfinger
2004-10-05 19:47 ` Andrew Cagney
2004-10-06 9:31 ` Paul Hilfinger
2004-10-06 9:47 ` Paul Hilfinger
2004-10-06 10:14 ` Andreas Schwab
2004-10-06 16:29 ` Andrew Cagney [this message]
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