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324 : CVu Journal Vol 32, #4 - September 2020
323 : CVu Journal Vol 32, #3 - July 2020
322 : CVu Journal Vol 32, #2 - May 2020
321 : CVu Journal Vol 32, #1 - March 2020
316 : CVu Journal Vol 31, #6 - January 2020
315 : CVu Journal Vol 31, #5 - November 2019
314 : CVu Journal Vol 31, #4 - September 2019
313 : CVu Journal Vol 31, #3 - July 2019
312 : CVu Journal Vol 31, #2 - May 2019
311 : CVu Journal Vol 31, #1 - March 2019
306 : CVu Journal Vol 30, #6 - January 2019
305 : CVu Journal Vol 30, #5 - November 2018
304 : CVu Journal Vol 30, #4 - September 2018
303 : CVu Journal Vol 30, #3 - July 2018
302 : CVu Journal Vol 30, #2 - May 2018
301 : CVu Journal Vol 30, #1 - March 2018
296 : CVu Journal Vol 29, #6 - January 2018
295 : CVu Journal Vol 29, #5 - November 2017
294 : CVu Journal Vol 29, #4 - September 2017
293 : CVu Journal Vol 29, #3 - July 2017
292 : CVu Journal Vol 29, #2 - May 2017
291 : CVu Journal Vol 29, #1 - March 2017
286 : CVu Journal Vol 28, #6 - January 2017
285 : CVu Journal Vol 28, #5 - November 2016
284 : CVu Journal Vol 28, #4 - September 2016
283 : CVu Journal Vol 28, #3 - July 2016
282 : CVu Journal Vol 28, #2 - May 2016
281 : CVu Journal Vol 28, #1 - March 2016
276 : CVu Journal Vol 27, #6 - January 2016

275 : CVu Journal Vol 27, #5 - November 2015
274 : CVu Journal Vol 27, #4 - September2015
273 : CVu Journal Vol 27, #3 - July 2015
272 : CVu Journal Vol 27, #2 - May 2015
271 : CVu Journal Vol 27, #1 - March 2015
266 : CVu Journal Vol 26, #6 - January 2015
265 : CVu Journal Vol 26, #5 - November 2014
264 : CVu Journal Vol 26, #4 - September 2014
263 : CVu Journal Vol 26, #3 - July 2014
262 : CVu Journal Vol 26, #2 - May 2014
261 : CVu Journal Vol 26, #1 - March 2014
256 : CVu Journal Vol 25, #6 - Jan 2014
255 : CVu Journal Vol 22, #5 - November 2013
254 : CVu Journal Vol 25, #4 - September 2013
253 : CVu Journal Vol 25, #3 - July 2013
252 : CVu Journal Vol 25, #2 - May 2013
251 : CVu Journal Vol 25, #1 - March 2013
246 : CVu Journal Vol 24, #6 - January 2013
245 : CVu Journal Vol 24, #5 - November 2012
244 : CVu Journal Vol 24, #4 - September 2012
243 : CVu Journal Vol 24, #3 - July 2012
242 : CVu Journal Vol 24, #2 - May 2012
241 : CVu Journal Vol 24, #1 - March 2012
236 : CVu Journal Vol 23, #6 - January 2012
235 : CVu Journal Vol 23, #5 - November 2011
234 : CVu Journal Vol 23, #4 - September 2011
233 : CVu Journal Vol 23, #3 - July 2011
232 : CVu Journal Vol 23, #2 - May 2011
231 : CVu Journal Vol 23, #1 - March 2011

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Letter to the Editor

07 March 2004 19:37:00 +00:00

James,

I thought it was about time I wrote and introduced myself to ACCU members – it’s probably long overdue given that I’ve been production editor for the journals for a couple of years now (just over two years for Overload and eighteen months for C Vu, to be exact).

Professionalism in Programming #24

07 March 2004 19:36:44 +00:00

“There is more to life than increasing its speed” - Mahatma Gandhi

We live in a fast food culture. Not only must our dinner arrive yesterday, our car should be fast, and our entertainment instant. Our code should also run like lightning. I want my result. And I want it now.

Ironically, writing fast programs takes a long time.

Optimisation is a spectre hanging over software development, as W.A. Wulf observed. “More computing sins are committed in the name of efficiency (without necessarily achieving it) than for any other single reason – including blind stupidity”.

It’s a well-worn subject, with plenty of trite soundbites bounding around, and the same advice being served time and time again. But despite this, a lot of code is still not developed sensibly. Programmers get sidetracked by the lure of efficiency and write bad code in the name of performance.

In these articles we’ll address this. We’ll tread some familiar ground and wander well-worn paths, but look out for some new views on the way. Don’t worry – if the subject’s optimisation it shouldn’t take too long...

do...while

07 February 2004 19:37:48 +00:00

What can be said about C’s everyday do...while loop? It just does something while some condition holds. End of story, right?

No, of course not. That would make the title of this small article silly, so let’s cover two topics.

Code in Comments

01 February 2004 19:38:18 +00:00

We have all seen comments in source files which look more like executable code than documentation.

The first line in the body of the for loop below is such a comment: you might expect to be able to remove the leading slashes and have code which compiles and runs, but functions slightly differently.

What did the author of this comment intend?

Example 0

for (Surfaces::iterator sf = surfaces.begin();
     sf != surfaces.end();
     ++sf) {
  // std::cout << "Drawing: " << *sf << "\n";
  sf->draw();
}

OK, I’m being disingenuous. I’m aware that the comment isn’t really a comment, it’s commented-out code. And, like any tolerant and capable programmer, by examining the surrounding context I can guess why this code has been commented out.

This article examines how to comment out code, then describes various problems which lead to code being commented out, before finally arguing that there’s often a better solution to these problems.

Comment on “Problem 11”

01 February 2004 19:38:02 +00:00

The first step here in finding problems in the code is to identify the problem the code is trying to solve. The discussion in the C Vu article is basically about curiosities in the way in which the C++ standard library std::istream is defined, but I will make the perhaps unwarranted assumption that what the problem the code is really about is not the uses of std::istream, but rather, more generally, how to write a read routine that can effectively and safely capture data from an input stream. Actually as the first problem below illustrates neither of these issues can be effectively addressed without the other.

Student Code Critique Competition 26

01 February 2004 01:21:34 +00:00

This item is part of the Dialogue section of C Vu, which is intended to designate it as an item where reader interaction is particularly important. Readers’ comments and criticisms of published entries are always welcome.

Editorial

09 December 2003 13:16:01 +00:00

Student Code Critique Competition

06 December 2003 13:16:02 +00:00

Professionalism in Programming #23

05 December 2003 13:16:02 +00:00

To err is human.

Francis' Scribbles

05 December 2003 13:16:02 +00:00

Maintaining Context for Exceptions (Alternative)

03 December 2003 13:16:02 +00:00

I_mean_something_to_somebody

03 December 2003 13:16:02 +00:00

This article reports on an experimental study, performed during the 2003 ACCU conference, that attempted to measure one particular aspect of developer identifier meaning assignment behavior. The study investigated the extent to which belief in the applicable application domain affects the meaning assigned to identifier names.

BRACKETS OFF!

03 December 2003 13:16:01 +00:00

Editorial

09 October 2003 13:16:00 +01:00

The Internet Isn't Working

Francis' Scribbles

07 October 2003 13:16:00 +01:00

Professionalism in Programming #22

06 October 2003 13:16:00 +01:00

Finding fault.

Student Code Critique Competition

03 October 2003 13:16:00 +01:00

Patterns in the Web

03 October 2003 13:16:00 +01:00

During the development of a an internet based GIS system we came across the problem of maintaining session state on two separate server entities...

Mac OS X Tech Talk Tour:

03 October 2003 13:16:00 +01:00

UNIX on the Desktop

I Wish They'd Use the Standard

03 October 2003 13:16:00 +01:00

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