apparently the template overload of the std::ostream operator for Tpsa class is not able to automatically cast unsigned int to int anymore for new gcc compiler versions. [or the template syntax used was loose in the first place]
adding helpful comments about std::ostream formatting
std::ostreamoperator forTpsaclass is not able to automatically castunsigned inttointanymore for new gcc compiler versions. [or the template syntax used was loose in the first place]std::ostreamformatting