Question about POSIX regex support

[Gallagher James]

Hi,

System specifics: Fedora Core 6, intel, gcc/++ 4.1.1.

I've been using gnulib for about two years primarily for its support  
of POSIX regular expressions. I noticed that after a recent update of  
gnulib, my regression tests for a regular expression class which uses  
regcomp(), regexec(), et c., now fail. I update gnulib earlier today  
and the problems remain.

Problem 1: With a string "123abcdef" and a regex of "abc", after  
calling regex(...) the resulting pmatch[] has values very different  
than before. In the past the result of this call was that pmatch 
[0].rm_so was 3 and pmatch[0].rm_eo was 6. Now I get pmatch[0].rm_so  
= 3, pmatch[0].rm_eo = 0, pmatch[1].rm_so = 6 and pmatch[1].rm_eo =  
0. It seems that the new result is not correct.

Problem 2: Using valgrind I'm getting an Invalid write of 8 bytes on  
lines 950 and 951 of regexec.c.

My questions are: Has anyone else seen a problem like this? I checked  
the list archive but nothing jumped out at me. Or is this a problem  
with the collision of gnulib's regex code and the regex stuff (e.g.,  
the regex.h header) already present on my link box?

Thanks,
James
--
James Gallagher                jgallagher at opendap.org
OPeNDAP, Inc                   406.723.8663