Re: CLOBBER_CACHE_ALWAYS regression instability - Mailing list pgsql-hackers

From Alvaro Herrera
Subject Re: CLOBBER_CACHE_ALWAYS regression instability
Date
Msg-id 20200405235419.GA24134@alvherre.pgsql
Whole thread Raw
In response to Re: CLOBBER_CACHE_ALWAYS regression instability  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: CLOBBER_CACHE_ALWAYS regression instability  (Andres Freund <andres@anarazel.de>)
List pgsql-hackers
On 2020-Apr-05, Tom Lane wrote:

> What I wish we had was alloca(), so you don't need a FUNC_MAX_ARGS-sized
> array to parse a two-argument function call.  Too bad C99 didn't add
> that.  (But some sniffing around suggests that an awful lot of systems
> have it anyway ... even MSVC.  Hmmm.)

Isn't it the case that you can create an inner block with a constant
whose size is determined by a containing block's variable?  I mean as in
the attached, which refuses to compile because of our -Werror=vla -- but
if I remove it, it compiles fine and works in my system.


-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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