Date: Tue, 9 Jul 2013 21:23:23 +0300 From: Konstantin Belousov <kostikbel@gmail.com> To: Michael Sperber <sperber@deinprogramm.de> Cc: freebsd-stable@freebsd.org Subject: Re: Weird regex behavior on 9.1-RELEASE on amd64 in 32-bit mode Message-ID: <20130709182323.GT91021@kib.kiev.ua> In-Reply-To: <y9lppura9nt.fsf@deinprogramm.de> References: <y9lppura9nt.fsf@deinprogramm.de>
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On Tue, Jul 09, 2013 at 08:08:22PM +0200, Michael Sperber wrote:
>
> I noticed that scsh (which only runs in 32-bit mode) fails on amd64. I
> narrowed it down to a regex malfunction (I think). This program:
>
> ----snip----
> #include <regex.h>
> #include <stdio.h>
>
> int
> main(void)
> {
> regex_t r;
> int status = regcomp(&r, "/afs", REG_EXTENDED);
> size_t nmatch = 1 + r.re_nsub;
> regmatch_t pmatch[32];
> status = regexec(&r, "/afs/informatik", nmatch, pmatch, 0);
> {
> int i;
> for(i = 0; i < nmatch; i--) {
> printf("%d: %d - %d\n", i, (int) pmatch[i].rm_so, (int) pmatch[i].rm_eo);
> }
> }
> return 0;
> }
> ----snip----
>
> This giveds me:
>
> # gcc r.c
> # ./a.out
> 0: 0 - 4
> # gcc -m32 r.c
> # ./a.out
> 0: 0 - 0
>
> Is it me or is there a bug? Help would be much appreciated!
-m32 does not work on stable. You need HEAD.
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