Debugging in a side effect free programming environment
Cordelia V. Hall, John T. O’Donnell · 1985
Lisp and its successors provide the programmer with a powerful single tool [2] in which he can write, modify, debug and execute programs. Side effects play a crucial role in these programming environments. We propose an alternative approach to debugging that doesn't rely on side effects. Then we describe an implementation of our approach in a purely functional language.