MyModule.c:64: no matching function for call to `Mysettings::set (const string *, const string *)'
/usr/local/include/mysettings.h:66: candidates are: void Mysettings::set(const string &, const string &)
/usr/local/include/mysettings.h:74:                 void Mysettings::set(const string &, const char *)
/usr/local/include/mysettings.h:82:                 void Mysettings::set(const string &, int)
/usr/local/include/mysettings.h:90:                 void Mysettings::set(const string &, double)
/usr/local/include/mysettings.h:98:                 void Mysettings::set(const string &, bool)