On May 27, 2004, at 10:05 AM, Vladimir Prus wrote:
I've sent a reduced test case to the Metrowerks front end engineer.
Thanks.
In the meantime I can think of two workarounds:
1. Specialize the entire basic_config_file_iterator class on wchar_t. or
This might be a good idea, especially since two other compilers -- borland and VC7 have problems with the same member function specialization.
2. Provide an inlined definition for the specialized member in the header.
Do you think that would help?
Here's my reduced test case: #include <string> struct base { virtual bool getline(std::string& s) = 0; }; template <class charT> struct derived : public base { bool getline(std::string& s); }; template <> //inline bool derived<wchar_t>::getline(std::string&);// {return false;} template <class charT> bool derived<charT>::getline(std::string&) { char test[sizeof(charT) == 1]; return true; } int main() { std::string s; derived<char> c; c.getline(s); derived<wchar_t> w; w.getline(s); } Error : data type is incomplete (instantiating: 'derived<wchar_t>::getline(std::basic_string<char, std::char_traits<char>, std::allocator<char>> &)') HelloWorld.cp line 24 char test[sizeof(charT) == 1]; If I give the specialization a definition, it compiles and runs correctly at least on Pro 9. Sorry I don't have Pro 8 loaded to test on. Btw our FE engineer has gotten back to me, confirmed this is a bug, and it has already been fixed in our latest compiler (post-Pro 9, not yet released). -Howard