OK, here is an opportunity to get me clear on comparing floating point values. I've found a very simple example, that I can not get to work -- and understand... Say I have a class that saves and restores a class. In the class, I have a double, a float, and a long double. As a test, I set the "floating" values to std::numeric_limits< T >::min() and std::numeric_limits< T >::max(), and then save the values, restore them, and compare the restored values to the originals. Obviously, I can not use BOOST_CHECK_EQUAL(), but I am clueless as to how to use the macros for comparing floating point values. Is there anything in numeric_limits that I should use to base the percentage value? Here's a chance for someone to finally clear my understanding of how to compare floating point value... please ?!?!? Thanks!