The copyright in all quotations from "The C Programming Language" belongs to Bell Telephone Laboratories Inc. I have received an assurance from Dennis Ritchie that neither he nor Brian Kernighan has any objection to the site. All the questions are direct quotes from the book, as is the source code provided as a starter for contributors wishing to offer solutions for some of the Chapter 4 exercises.

Anyone tempted to offer solutions in breach of Tondo and Gimpel's copyright is warned that a couple of comp.lang.c regulars check each solution against their copy of Tondo and Gimpel, and will send me emails if they detect any plagiarism. Solutions breaching Tondo and Gimpel's copyright will be removed as soon as they are detected.