From: Andreas Ericsson <ae@op5.se>
Date: Wed, 21 Nov 2007 15:09:15 GMT
Subject: Re: [WIP PATCH] Add 'git fast-export', the sister of 'git fast-import'
Message-ID: <47444A1B.4000907@op5.se>
In-Reply-To: <Pine.LNX.4.64.0711211209080.27959@racer.site>

Johannes Schindelin wrote:
> 
> P.S.: I'll try to read up on ptrint_t, as suggested by Shawn.

I can't find a reference to ptrint_t anywhere on either my system,
and the 10 first hits on Google finds it on typedef lines, most
commonly like this:

	typedef unsigned long ptrint_t;


I think ptrdiff_t is more portable. Here's the relevant entry
about ptrdiff_t from /usr/include/obstack.h on my system:

---%<---%<---%<---
/* We need the type of a pointer subtraction.  If __PTRDIFF_TYPE__ is
   defined, as with GNU C, use that; that way we don't pollute the
   namespace with <stddef.h>'s symbols.  Otherwise, include <stddef.h>
   and use ptrdiff_t.  */

#ifdef __PTRDIFF_TYPE__
# define PTR_INT_TYPE __PTRDIFF_TYPE__
#else
# include <stddef.h>
# define PTR_INT_TYPE ptrdiff_t
#endif
---%<---%<---%<---

MySQL seems to have botched that one though. It has this instead:

	typedef long          my_ptrdiff_t;

-- 
Andreas Ericsson                   andreas.ericsson@op5.se
OP5 AB                             www.op5.se
Tel: +46 8-230225                  Fax: +46 8-230231