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Re: [hurd,commited] hurd sendmsg: Fix warning on calling CMSG_*HDR

From: Andreas Schwab
Subject: Re: [hurd,commited] hurd sendmsg: Fix warning on calling CMSG_*HDR
Date: Sun, 29 Dec 2019 19:08:37 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux)

On Dez 29 2019, Samuel Thibault wrote:

> Andreas Schwab, le dim. 29 déc. 2019 18:12:02 +0100, a ecrit:
>> > -  for (; cmsg; cmsg = CMSG_NXTHDR (message, cmsg))
>> > +  for (; cmsg; cmsg = CMSG_NXTHDR ((struct msghdr *) message, cmsg))
>> Why is the first argument of __cmsg_nxthdr not const?
> I don't know, it is so on other systems as well.
> I guess an issue is that if it was const, CMSG_NXTHDR would only
> be allowed to return a const,

The return value is not based on the first argument.


Andreas Schwab, schwab@linux-m68k.org
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