When is a cast not a cast?

[Jim Shankland]

In article <2919 at buengc.BU.EDU> bph at buengc.bu.edu (Blair P. Houghton) writes:
>... a semanticist or a professional computer scientist ... neither
>of which I am.  I'm just a C-coding hacknut with a yen to see two pointers
>added together.

This much is abundantly clear.

You want to add two pointers together?  You can.  Here's how:

	char *cp1, *cp2, *cp3;
	...
	cp3 = (char *) ((unsigned long) cp1 + (unsigned long) cp2);

If you could do it a little less noisily than you have been :-(, many
of us would appreciate it.  Oh, and don't expect your code to be portable.
The above code has no meaning that is independent of a particular hardware
platform.  That's not C's fault, either.  If you don't understand why not,
then for Christ's sake, pick up a book or take a course or something.
Posting inane analogies and gratuitously insulting people who know more
about this than you do is a poor way to arrive at understanding.

Jim Shankland
jas at ernie.berkeley.edu

"Blame it on the lies that killed us, blame it on the truth that ran us down"