Hi, all. I want to use boost Xpress on Windows CE 5.0 (w/VS2005) when compile sample code, error occors reason of "btowc()" function. if I comment out ////////////////////////// c_regex_traits.hpp ///////////////////////// #ifndef BOOST_XPRESSIVE_NO_WREGEX /// INTERNAL ONLY template<> inline wchar_t c_regex_traits::widen(char ch) { using namespace std; return btowc(ch); <<-------------- here!!! } #endif ////////////////////////////////////////////////////////////////////// this function not supported in Windows CE. is there any solution of the compile error? regards, from bstill. ps: when I compile with "BOOST_XPRESSIVE_NO_WREGEX" preprossor, another errors are occur. ________________________________________________________ 존경하는 선생님께 고마움의 메시지 보내고 선물 받으세요! - 모두가 행복한 세상이 됩니다. UCC 참여하기 http://kr.fun.kids.yahoo.com/funnybox/thankyou.html