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Re: [hurd,commited] hurd sendmsg: Fix warning on calling CMSG_*HDR
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From: |
Andreas Schwab |
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Subject: |
Re: [hurd,commited] hurd sendmsg: Fix warning on calling CMSG_*HDR |
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Date: |
Sun, 29 Dec 2019 19:08:37 +0100 |
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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.
--
Andreas Schwab, schwab@linux-m68k.org
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