Joy of Programming: Calling Virtual Functions from Constructors
Calling virtual functions from constructors is problematic, and this problem can manifest itself in many ways. In this column, we’ll take a look at this problem, with specific examples. Last year, I bought…
Joy of Programming: How Debugging Can Result in Bugs!
We typically debug code to find and fix bugs. However, debugging itself can cause bugs. This is an interesting phenomenon that we cover in this month’s column. Consider the following simple Java example,…
Joy of Programming: Levels of Exception Safety
The concept of “exception safety” is important for programming in the presence of exceptions. In this article, we’ll look at different levels of exception safety, with the help of an example. Let’s first…
Joy of Programming: The ‘Broken Window’ Theory
It is common to see software projects fail. One important cause is ‘design and code rot’. In this article, let’s try understanding the causes, in the light of a popular theory. Development projects…
Joy of Programming: Abort, Retry, Fail?
Exception handling is tricky to get right. In this column, I present some guidelines for writing good exception handling code, by giving real-world (counter) examples. Guideline 1 Write descriptive error messages. Guideline 2…
Joy of Programming: Bug Hunt
Every programmer knows that debugging is akin to a detective’s work. In this column, we’ll cover this “bug hunt” process with an example of how the Intel Pentium processor bug was discovered. Software…
Joy of Programming: SNAFU — Situation Normal, All Fouled Up!
The stories of software development projects in crisis are amazingly familiar to all experienced programmers and managers. In this column, we’ll look at some common aspects of projects in crisis and how they…
Joy of Programming: Language Transition Bugs
There are subtle differences between languages like C, C++, Java and C#. Programmers transitioning from one language to another should beware of such differences. When I speak to my Tamil friends in English,…
Joy of Programming: Penny Wise and Pound Foolish!
We often try to use a smaller data type to save space. Though it looks like clever programming, it can cause nasty bugs. Let’s look at an example that demonstrates this. A few…
Joy of Programming: Logical Bugs and Intuitive Thinking
Logical bugs are very common in code and are often very difficult to find and fix. In this column, we’ll look at an example of a real-world logical bug, and explore how intuitive…
May 21, 2013
Peter — Hi I followed the steps but on bootup of qemu it hangs at "Stopping configure virtual network devices, waiting for...
May 20, 2013
Aseem — can u just elaborate this part "edit the output file to include only the hash value. (It should only include...
May 19, 2013
raghu ram — Hi Anil, Your articles are awesome Please give some tutorials on PCI Sound Card drivers using ALSA.
May 18, 2013
MF Hussain — Best training center in bangalore for RHCE is Linuxlearningcenter they train only on REDHAT....
May 17, 2013
santosh yadav — hello everyone!
i am trying to do gpio access and encounter segmentation fault.
so to overcome it i will have to map...
