Re: [Boost-users] [regex] "EXC_BAD_ACCESS" when iterating over smatchcaptures

From: Christopher Hart (hartct_at_[hidden])
Date: 2006-05-23 18:27:15

When I received the error, BOOST_REGEX_MATCH_EXTRA was defined both at
my program's compile time and when in user.hpp when I built boost.
Based on my vauge understanding of that error, my impression was that
it was attempting to read memory that had already been de-allocated.
Is that consistent with a missing definition (either when the library
was built or at my program's compile time)?  Or am I missing
something?

Thanks,
Chris

On 5/23/06, John Maddock <john_at_[hidden]> wrote:
> Christopher Hart wrote:
> > All:
> >
> > I'm trying to run the captures example included in the Boost.Regex
> > documentation.  When running the captures example verbatim, I get:
> > "Program received signal:  "EXC_BAD_ACCESS"."
> >
> > This is happening on Mac OS X 10.4.6 (Intel) with Boost 1.33.1.  This
> > problem seems to be related to the definition of
> > BOOST_REGEX_MATCH_EXTRA - if I don't use captures and leave the macro
> > undefined, other regex functions work fine.
>
> In order to use the extended capture information then you must define
> BOOST_REGEX_MATCH_EXTRA:
>
> *both when building your application, and when building the regex lib*
>
> If you're linking against the standard bjam built lib's then this won't
> work: the lib's won't be binary compatible with the BOOST_REGEX_MATCH_EXTRA
> option.  Yes I no this is a pain, but it's a feature that has costs, so I
> don't want to enable it by default.
>
> John.
>
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