Polymorphism within constructors
In C++, polymorphism does not take place within constructors: #include <iostream> using namespace std; struct Base { Base() { foo(); } virtual ~Base() {} virtual void foo() { cout << (…Read More)
Messing with sizes
The size of an item in computer displays or printouts depends on a lot of configurations. Font size, DPI/PPI, screen resolution, page zooming, etc. all contribute to the output size. (…Read More)
Congratulation to myself!
I have just realised that I haven’t written a post yet since I successfully entered HKU to study BBA(IS). I’m very happy that I can finally study computer science in (…Read More)
NAT64 and DNS64
After setting up IPv6 for nearly two months, I’m now interested in testing an IPv6 only LAN. In order to access the IPv4 Internet from an IPv6 only network, a (…Read More)
IPv6 tunnel set up
I’ve just set up a free tunnel from Hurricane Electric. I can now visit the IPv6 Google site http://ipv6.google.com/
Konqueror web shortcuts
In Konqueror, you can type gg: to perform a Google search. wp: to go to Wikipedia. I’ve added an entry for JUPAS, i.e. http://web.jupas.edu.hk:6118/jupas/bin/jo.progSearch.ProgSearch?type=detail&course_code=\{@} then I can type like jupas:6963 (…Read More)
Thanks KParts plugin, I’ve finally managed to get rid of Firefox.
In the past, the major obstacle for me to change to Google Chrome is its inability to view PDFs directly inside the browser. Now, with that plugin installed, I’m finally (…Read More)
stable = outdated?
Debian comes with three flavours: stable, testing and unstable. Stable is rock solid, it never breaks, and is never updated; unstable is updated often, breaks often, and is fixed often. (…Read More)
Garbage Collection is evil
Programming languages with built-in garbage collection (GC) is often praised as no memory leaks, less error-prone, etc but I don’t disagree with this. This article brings you some facts of (…Read More)
Don’t use C++ exception specifications
Exception specifications should be very familiar to Java programmers. Here is an example: class MyException extends Exception { } class Foo { void abc(int x) throws MyException { if (x (…Read More)