Hello, I would like to address this issue to boost::wave authors. First of all great lib! Many thanks! During the compilation with MSVC8 Express Edition I get a warning: c:\boost\include\boost-1_33_1\boost\wave\cpp_context.hpp(112) : warning C4355: 'this' : used in base member initializer list c:\boost\include\boost-1_33_1\boost\wave\cpp_context.hpp(106) : while compiling class template member function 'boost::wave::context::context(const std::_String_iterator<_Elem,_Traits,_Alloc> &,const std::_String_iterator<_Elem,_Traits,_Alloc> &,const char *,const TraceT &)' with [ IteratorT=token_groups::str_iter_type, LexIteratorT=token_groups::lex_iter_type, _Elem=char, _Traits=std::char_traits<char>, _Alloc=std::allocator<char>, TraceT=boost::wave::context_policies::default_preprocessing_hooks ] My typedefs look like: typedef wave::cpplexer::lex_token<> token_type; typedef wave::cpplexer::lex_iterator lex_iter_type; typedef std::string::iterator str_iter_type; typedef wave::context context_type; typedef context_type::iterator_type ctx_iter_type; Is there any chance that this warning will be suppressed in the next release, since it is a little bit annoying. I can't do anything about it as a user of wave and I also try to follow the rule to compile clean without warnings. Many thanks and With Kind Regards, Ovanes Markarian