Er ... does port/snprintf.c actually work?

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: pgsql-hackers(at)postgreSQL(dot)org
Subject: Er ... does port/snprintf.c actually work?
Date: 2005-12-04 19:17:28
Message-ID: 9381.1133723848@sss.pgh.pa.us
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I started to do some simple testing of snprintf.c after doing the
cleanup work I had in mind, and soon found that neither my version
nor the original actually do parameter reordering correctly:

$ ./testf 'abc%2$sfoo%1$s' DEF GHI
sys:
abcGHIfooDEF <--- looks right to me
ours:
abcDEFfooGHI <--- wrong
done

I haven't dug into this too closely yet (offhand I think the problem
is that the loop at line 541ff is searching fmtpar[] and then using
fmtparptr[]) but was wondering why it hadn't been noticed before.
Which of our platforms actually use port/snprintf.c, and hasn't anyone
tried any of the internationalized message databases on one?

regards, tom lane

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