From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | Peter Geoghegan <pg(at)heroku(dot)com> |
Cc: | Andres Freund <andres(at)2ndquadrant(dot)com>, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Back branches vs. gcc 4.8.0 |
Date: | 2013-04-05 22:50:06 |
Message-ID: | 15087.1365202206@sss.pgh.pa.us |
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Lists: | pgsql-hackers |
Peter Geoghegan <pg(at)heroku(dot)com> writes:
> Are you proposing that we use the FLEXIBLE_ARRAY_MEMBER macro in every
> single place where we currently use the one element array pattern?
Yup, exactly.
> I count one place where we currently use FLEXIBLE_ARRAY_MEMBER. It'd be
> pretty ugly to have that everywhere, in my opinion.
Hm, I see 4 places in HEAD. But in any case, is
int16 values[1]; /* VARIABLE LENGTH ARRAY */
} int2vector; /* VARIABLE LENGTH STRUCT */
really better than
int16 values[FLEXIBLE_ARRAY_MEMBER];
} int2vector;
? I don't think so. Relying on comments to tell about critical
semantics of a data structure isn't really nice if you can do it
in a way that is standards-blessed and (some) compilers understand.
regards, tom lane
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