From: John Maddock (john_at_[hidden])
Date: 2007-06-30 03:51:34
Markus Grabner wrote:
> Hi!
>
> For an application I'm writing, I need the match_results::captures
> feature, which requires to recompile boost with
> BOOST_REGEX_MATCH_EXTRA. I did so and globally installed the modified
> boost-1.33.1 on my machine. However, several utilities installed on
> my machine that came with my Linux distribution (openSUSE-10.2) don't
> work with the modified library (including the yast2 package manager,
> which made it somewhat challenging to re-install the original
> version). So I have two questions:
>
> *) What is the recommended installation if applications requiring
> BOOST_REGEX_MATCH_EXTRA must be installed on the same machine
> together with applications that don't require this extension?
Use your own private version that's not named libboost_regex :-)
> *) Are there any chances that future versions of the boost_regex
> library will remove this compile-time distinction? Are the few extra
> bytes for the (unused) m_captures member in sub_match really such a
> big problem?
I need to do a lot of testing before making building with that option the
default. Certainly defining that macro has a big impact on the state
machine size, which effects caching etc.
John.