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Re: [PATCH 0/5] obstacks again

From: Paul Eggert
Subject: Re: [PATCH 0/5] obstacks again
Date: Wed, 29 Oct 2014 20:35:18 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0

Alan Modra wrote:

One thing though, I didn't put the ChangeLog diffs in the patch as I
usually add them when committing.

Oh, I missed that. I added them now. For Gnulib it's better to put them into the patch.

It is no longer possible to shrink an obstack with obstack_blank (but
you can still do that with obstack_blank_fast).

Ouch, I hadn't noticed that. That's an incompatible change and I expect it will break real-world usage for no particularly good reason, so we really need to fix this. How about making the 2nd argument to obstack_blank and obstack_blank_fast be of type ptrdiff_t rather than size_t?

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