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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: libnettle/libhogweed WIP
Date: Sun, 16 Apr 2017 09:19:57 +0300
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To: Stefan Monnier <monnier@iro.umontreal.ca>
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In-reply-to: <jwvr30t11tt.fsf-monnier+gmane.emacs.devel@gnu.org> (message from
	Stefan Monnier on Sat, 15 Apr 2017 23:37:57 -0400)
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> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Date: Sat, 15 Apr 2017 23:37:57 -0400
> 
> > I think STRING_SET_CHARS is what you want here.
> 
> Really?  This sets ->size without changing ->size_bytes, so it doesn't
> look right.

This is a unibyte string, so size_byte is -1 anyway.  We do use this
macro in a few places in our sources; are you saying they are all
wrong?