You may use these classes in your course project. These classes are extracted from production-quality systems that Dr. Jia developed with certain idiosyncratic and product-specific stuff removed. Although he haven't tested the extracted version beyond the simple test included below, he is quite confident that they are bug-free, execpt maybe some mistakes during the cut-and-past. However, if you do find some bugs still lurking around, I'll galdly award you 10 bonus points for your final project (out of 100 total points.) The source has been compiled using GNU C++ 2.7.2 and Visual C++ 4.0. It should work with all ANSI conformant C++ compilers.