From: Nathan Bossart <nathandbossart@gmail.com>
To: 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: Thu, 4 Jun 2026 10:07:48 -0500
Message-ID: <aiGUxEzo4o5_fRIq@nathan> (raw)
In-Reply-To: <6c52a1a6612948519468d46cb224a8c4@nidsa.net>
References: <6c52a1a6612948519468d46cb224a8c4@nidsa.net>
On Thu, Jun 04, 2026 at 02:42:18PM +0000, Hans Buschmann wrote:
> 839/2360] Compiling C object src/backend/postgres_lib.a.p/optimizer_util_clauses.c.o
> ../src/backend/optimizer/util/clauses.c: In function ‘recheck_cast_function_args.isra’:
> ../src/backend/optimizer/util/clauses.c:5152:19: warning: ‘actual_arg_types’ may be used uninitialized [-Wmaybe-uninitialized]
> 5152 | rettype = enforce_generic_type_consistency(actual_arg_types,
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};
--
nathan
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To: pgsql-hackers@postgresql.org
Cc: nathandbossart@gmail.com, buschmann@nidsa.net
Subject: Re: PG19beta1: GCC 16.1.1 warning: ‘actual_arg_types’ may be used uninitialized in clauses.c
In-Reply-To: <aiGUxEzo4o5_fRIq@nathan>
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