Boost::Xpressive compile puzzle under MinGW
问题 Switching to GCC for the first time, and I'm getting a bit confused by what the compiler is telling me here. Essentially, it's behaving like boost::xpressive::wsregex is not defined (I believe). Here is the relevant code: #include "criterion.h" #include <string> #include <boost/xpressive/xpressive.hpp> //More lines of code omitted here class perlRegex : public regexClass { private: std::wstring regexString; boost::xpressive::wsregex regex; // This is the line complained about public: unsigned