Hi Matias, Versions of GCC before 3.x are not ISO 14882 (i.e., C++) compliant, because they preceded the C++ standard. You cannot write compliant C++ code (especially ones that use C++ STL as per the standard, and other Standard C++ Library features) with those compilers. You can only write a variation of C++ that existed in a state of flux before the standard was hammered out. I recommend you plead your case to your teacher to adopt a more current -- and thus more compliant -- GCC. It makes no sense to me to teach "pre-1998 C++". Good luck, --Eljay
