Re: [PATCH 04/16] Add embedded list interface (header only) - Mailing list pgsql-hackers

From Tom Lane
Subject Re: [PATCH 04/16] Add embedded list interface (header only)
Date
Msg-id 10731.1340374715@sss.pgh.pa.us
Whole thread Raw
In response to Re: [PATCH 04/16] Add embedded list interface (header only)  (Andres Freund <andres@2ndquadrant.com>)
Responses Re: [PATCH 04/16] Add embedded list interface (header only)  (Andres Freund <andres@2ndquadrant.com>)
List pgsql-hackers
Andres Freund <andres@2ndquadrant.com> writes:
> On Friday, June 22, 2012 12:23:57 AM Peter Geoghegan wrote:
>> Why are you using the stdlib's <assert.h>? Why have you used the
>> NDEBUG macro rather than USE_ASSERT_CHECKING? This might make sense if
>> the header was intended to live in port, but it isn't, right?

> That should probably be removed, yes. I did it that way that it could be 
> tested independently of casserts because the list checking code turns some 
> linear algorithms into quadratic ones which is noticeable even when --enable-
> cassert is defined.

As far as that goes, I wonder whether the list-checking code hasn't
long since served its purpose.  Neil Conway put it in when he redid the
List API to help catch places that were using no-longer-supported hacks;
but it's been years since I've seen it catch anything.  I suggest that
we might want to either remove it, or enable it via something other than
USE_ASSERT_CHECKING (and not enable it by default).
        regards, tom lane


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