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From: Rich Felker <dalias@aerifal.cx>
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Subject: Re: SUN_LEN
Date: Wed, 21 Aug 2013 13:25:36 -0400
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On Thu, Aug 22, 2013 at 02:11:52AM +0900, Yu Kobayashi wrote:
> > The fact that gmail seems to be using ISO-2022-JP by default
> 
> Sorry, I switched to the English name.
> I think UTF-8 or US-ASCII is used.
> 
> > This is insufficient, since sys/un.h does not expose strlen.
> 
> Why is it a bad thing to include <string.h>?
> Worry about cyclic dependency?

Well it puts a lot more stuff into the namespace and has a much larger
parsing cost (for the 99% of applications using sys/un.h that don't
need SUN_LEN). I think just using strlen and adding the __NEED_size_t
and prototype might be the least ugly though, now... after all none of
the options are clean.

Rich