Horton

Re: gcc 12.1.0 warning

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Erik Rijkers <er@xs4all.nl>
Cc: pgsql-hackers@lists.postgresql.org
Date: 2022-05-06T14:46:20Z
Lists: pgsql-hackers 
Erik Rijkers <er@xs4all.nl> writes:
> Not sure if these compiler-mutterings are worth reporting but I guess 
> we're trying to get a silent compile.

> System: Debian 4.9.303-1 (2022-03-07) x86_64 GNU/Linux
> Compiling with gcc 12.1.0 causes the below 'warning' and 'note'.
> Compiling with --enable-cassert --enable-debug  is silent, no warnings)

> In function ‘guc_var_compare’,
>      inlined from ‘bsearch’ at 
> /usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h:33:23,
>      inlined from ‘find_option’ at guc.c:5649:35:
> guc.c:5736:38: warning: array subscript ‘const struct config_generic[0]’ 
> is partly outside array bounds of ‘const char[8]’ [-Warray-bounds]
>   5736 |         return guc_name_compare(confa->name, confb->name);
>        |                                 ~~~~~^~~~~~

I'd call that a compiler bug.

			regards, tom lane

Commits

  1. Fix bad indentation introduced in 43cd30bcd1c

  2. Fix type confusion in guc_var_compare()