[Boost-users] [Regex] How to use BOOST_REGEX_RECURSIVE

From: Richard Hadsell (hadsell_at_[hidden])
Date: 2008-05-19 15:11:30

I just discovered the Regex algorithm selection macros that have been 
around for a long time.  I noticed that BOOST_REGEX_RECURSIVE is 
supposed to enable a faster algorithm, and it is not the default on 
Linux systems.  Most of our patterns are very simple, so I am not 
worried about pathological cases, and I would like to try the recursive 
algorithm.

Do I need to modify boost/regex/user.hpp before building the library?

Do I need to compile my applications with the macro defined as a 
compiler option?

Is it sufficient to define the macro in a source file before including 
the boost/regex.h header?

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