We all know that operations in a computer happen one after the other. Having multiple CPUs and instruction reordering tends to obfuscate the issue. Technically things still proceed in an orderly fashion, […]
The ideal language must be automatically typed
A bane of programming is repeating code and dealing with a myriad of types. The natural response to type overload is to limit the number of types. This runs counter to the […]
The Ideal Language cannot leak resources
The ideal programming language should not leak resources. Resources include not just memory, but also files, network connections, device locks, sound buffers, and anything needing to be acquired and released. Even an […]
CPU Memory – Why do I need a mutex?
Multi-threaded programming calls for semaphores, synchronized blocks, mutexes, or whatever your language happens to call them. Most of us basically understand why we need them: to prevent multiple-threads from accessing the same […]
The Cost – A Function Call
In the grand scheme of execution costs function calls come very close to the bottom of the list. They don’t cost very much at all — at least not in most compiled […]
The Cost – Instantiation and the hidden enemy “new”
Whether C++, Java or any other language, we are all familiar with instantiating an object. In those aforementioned languages the operator new happens to do just that. Obviously CPUs don’t have any […]
The Cost – Programming Performance and Efficiency
As high level languages become more abstract, and offer more convenience features, it is easy to lose track of what the computer is actually doing. While this may be a great boon […]
The Evil and Joy of Overloading
Is overloading a bad thing? Despite a wide variety of new languages supporting some form of it I continue to find articles that say overloading is bad. Worse, I find many articles […]
Rules for Framework Development
Each time I start a new project I find myself looking at the latest batch of frameworks. Lately those are web frameworks, such as CakePHP, RubyOnRails, perhaps JQuery, or any other of […]
The 5 Ways to Test a Web Application – How They Work and How They Fail
Despite a huge push for more testing of applications, online or off, there is actually not a lot of standardized systems for doing it. This is not to say there aren’t a lot of standard techniques, there simply lacks unifying by-the-book approaches which yield solid results. A lack of standards should however be no reason not to test your web application. Yet without clear guidance most providers kind of just try things thereby wasting a lot of effort and still ending up with a poor quality product. Here is a general overview of the five basic approaches to testing.
