Barco You wrote:

Hi, I inlude <boost/regex.hpp> and try to use boost::wregex but got error message: "wregex in namespace 'boost' does not name a type".

How to use wregex, thanks!

What compiler and platform? If the platform has no wide character support (cygwin for example) then there is no boost::wregex type declared. You can detect this by checking to see if BOOST_NO_WREGEX is defined or not after including boost/regex.hpp. HTH, John.