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boost::xpressive::local — local<> is a lazy wrapper for a reference to a value that is stored within the local itself. It is for use within xpressive semantic actions. 
// In header: <boost/xpressive/regex_actions.hpp> template<typename T> struct local : public proto::terminal::type< reference_wrapper< T > > { // construct/copy/destruct local(); explicit local(T const &); // public member functions T & get(); T const & get() const; };
Below is an example of how to use local<> in semantic actions.
using namespace boost::xpressive; local<int> i(0); std::string str("1!2!3?"); // count the exciting digits, but not the // questionable ones. sregex rex = +( _d [ ++i ] >> '!' ); regex_search(str, rex); assert( i.get() == 2 );
| ![[Note]](../../../../doc/src/images/note.png) | Note | 
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| As the name "local" suggests,  |