From: | Craig Ringer <craig(at)2ndquadrant(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Andres Freund <andres(at)anarazel(dot)de>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
Subject: | Re: POC: converting Lists into arrays |
Date: | 2019-08-08 03:36:44 |
Message-ID: | CAMsr+YGTrK023TUkCMj9pBeX0eyrdMO0D9=SBAQ0B4t3-8R8-Q@mail.gmail.com |
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Lists: | pgsql-hackers |
On Thu, 1 Aug 2019 at 07:40, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Andres Freund <andres(at)anarazel(dot)de> writes:
> > Unfortunately foreach(ListCell *lc, ...) doesn't work with the current
> > definition. Which I think isn't great, because the large scopes for loop
> > iteration variables imo makes the code harder to reason about.
>
>
Totally agree.
>
> you can only put one <declaration> into the first element of a
> for (;;).
>
Use an anonymous block outer scope? Or if not permitted even by C99 (which
I think it is), a do {...} while (0); hack?
--
Craig Ringer http://www.2ndQuadrant.com/
2ndQuadrant - PostgreSQL Solutions for the Enterprise
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