I had once a modest hack with an immediate payoff. We were using a troublesome 3rd party C++ library (back in the cfront days), whose source wasn't available.

I had once a modest hack with an immediate payoff. We were using a troublesome 3rd party C++ library (back in the cfront days), whose source wasn't available. I took care of one critical bug this way: #define private public #include <foo.h> Now all the innards of the foo class were available to be fixed!