From: Nathan Bossart <nathandbossart@gmail.com>
To: Álvaro Herrera <alvherre@kurilemu.de>
Cc: Hans Buschmann <buschmann@nidsa.net>
Cc: pgsql-hackers@postgresql.org <pgsql-hackers@postgresql.org>
Subject: Re: PG19beta1: GCC 16.1.1 warning: ‘actual_arg_types’ may be used uninitialized in clauses.c
Date: Wed, 17 Jun 2026 09:39:18 -0500
Message-ID: <ajKxliOE7JzBPQiR@nathan> (raw)
In-Reply-To: <aiwb1wzWn-q1LNti@alvherre.pgsql>
References: <aiGUxEzo4o5_fRIq@nathan>
<aiwb1wzWn-q1LNti@alvherre.pgsql>
On Fri, Jun 12, 2026 at 04:54:04PM +0200, Álvaro Herrera wrote:
> On 2026-Jun-04, Nathan Bossart wrote:
>> This code is ~18 years old, so I'm dubious there's a real problem here.
>> Does something like this suppress the warning?
>>
>> Oid actual_arg_types[FUNC_MAX_ARGS] = {InvalidOid};
>
> I agree that it doesn't look like there's a real problem, and that
> something like what you suggest should silence this warning. I mildly
> prefer to do " = {0}" though, the rules for C incomplete initializers
> being so weird. But I wouldn't oppose this patch as posted.
WFM. Hans, can you confirm this fixes the issue?
--
nathan
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To: pgsql-hackers@postgresql.org
Cc: nathandbossart@gmail.com, alvherre@kurilemu.de, buschmann@nidsa.net
Subject: Re: PG19beta1: GCC 16.1.1 warning: ‘actual_arg_types’ may be used uninitialized in clauses.c
In-Reply-To: <ajKxliOE7JzBPQiR@nathan>
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