what does this operator do???

cjusto · Joined: 26 Apr 2006 Posts: 38 Location: Portugal

hi!!
can someone help me with this operator??

"->", this comand (it looks like an arrow pointing right).

i know that is used with arrays, but what is it's real function?

thanks

kender · Joined: 09 Aug 2004 Posts: 768 Location: Silicon Valley

treitmey · Joined: 23 Jan 2004 Posts: 1094 Location: Appleton,WI USA

structure pointer operator K&R page 131

cjusto · Joined: 26 Apr 2006 Posts: 38 Location: Portugal

hi treitmey!

what is K&R?

rberek · Joined: 10 Jan 2005 Posts: 207 Location: Ottawa, Canada

Kernighan and Ritchie "The C Programming Language"

This is the first C book many,many C programmers read and is a staple on most others' bookshelves.

treitmey · Joined: 23 Jan 2004 Posts: 1094 Location: Appleton,WI USA

A book you should buy.
"The C programming Language" by Kerninghan and Ritchie.
AKA "K&R"
AKA "The bible"
http://www.amazon.com/gp/product/0131103628/104-6100712-2526320?v=glance&n=283155
Read the reviews here. At 270 pages, this is a POWERFULL book.

cjusto · Joined: 26 Apr 2006 Posts: 38 Location: Portugal

oh. ok. thanks.

i didn't know it.

i will check that, maybe when i finish this project.

thanks anyway

rnielsen · Joined: 23 Sep 2003 Posts: 852 Location: Utah

cjusto · Joined: 26 Apr 2006 Posts: 38 Location: Portugal

rnielsen · Joined: 23 Sep 2003 Posts: 852 Location: Utah

I thought school was a place where you were supposed to _learn_ things and not simply whip out projects and then say "Next project!".

dyeatman · Joined: 06 Sep 2003 Posts: 1933 Location: Norman, OK

Apparently the REALITY is that they don't have time for books. I must be throwing my money away because I have hundreds (possibly thousands) of dollars worth of them in the bookcases in my office. The method and reality employed by many young people now days is to learn just enough to get by then move on... I just had a professed EE in one of my classes recently that got his degree like that. He didn't have a remote chance of passing in my class because he had NO understanding of theory and what he was really doing. Such is life...

Mark · Joined: 07 Sep 2003 Posts: 2838 Location: Atlanta, GA

Keep in mind that not all electrical engineers know or even care to program! This guy might have to take a microcontroller course to satisfy some requirements but might not care to do it for a living. Oh, BTW, I have never read a K&R book nor really any C book except for maybe a text book in school. We had to take a C++ class in school and that's probably the only C book that I have read (and not that thoroughly).

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

Yes, but you're smarter than the average student and absorbed the
material better. You're not typical.

newguy · Joined: 24 Jun 2004 Posts: 1907

Charlie U · Posted: Tue Jun 06, 2006 9:21 pm

It appears that there are a few of us diehards that monitor this forum regularly. I don't post any where near as much of many of you do, but I read nearly 75% of the posts and following threads. I too, taught myself C programming, but with the help of a couple of well educated computer science professionals. I wanted to learn to program, and I was allowed the opportunity by clients to pursue it. I must confess, I read the K&R C programming language book from cover to cover (with a few naps in between) before I wrote a single line of code. I didn't absorb most of it, but I knew that I had been exposed to all of the features of C and had some idea of where to find the answers. K&R isn't just the bible of C, these guys created C. If I am not mistaken, they worked at AT&T labs and created the language. Correct me if I am wrong, but wasn't UNIX written in C? Any one who even thinks of learning C MUST have a copy of K&R. It has all (well maybe most) of the answers to this type of question.