> The book of the same name is a decent third book on C: K&R or some other intro, Expert C Programming, then this.
For the curious, this paper _is_ the the basis for the aforementioned book...
"This paper, greatly expanded, is the basis for the book
C Traps and Pitfalls
(Addison-Wesley, 1989, ISBN
0–201–17928–8); interested readers may wish to refer there as well."
Andrew Koenig, the author of this paper/book, is also co-author of Accellerated C++, which I can whole heartedly recommend. [Addison Wesley ISBN-10: 0-201-70353-X]
"Incidentally, it is a common misconception that if c is a character variable, one can obtain the unsigned integer equivalent of c by writing (unsigned) c. This fails because a char quantity is converted to int before any operator is applied to it, even a cast. Thus c is converted first to a signed integer and then to an unsigned integer, with possibly unexpected results."
The "even a cast" part is wrong. The usual arithmetic conversions (including the integer promotion) is not done with the cast operation in C.
