So I would like to parse a binary file and extract some data from it. The problem I am facing with this is that I need to convert a stream of chars to a stream of unsigned chars. Reading the boost documentation, it seems that boost::iostreams::code_converter should be the solution for this, so I tried this:

typedef unsigned char uint8_t;
typedef boost::iostreams::stream<boost::iostreams::code_converter<
   boost::iostreams::basic_array_source<uint8_t> >, 
   std::codecvt<uint8_t, char, std::mbstate_t> > array_stream;

The idea was to specify a codecvt with InternalType=uint8_t and ExternalType=char. Unfortunately this does not compile. So the question is: how do I convert a stream of chars to a stream of uint8_ts?