Category: Geek Stuffs

All things related with Computer and IT

Inspiring Chats with Bjarne Stroustrup

I was invited for students dinner at Cppcon. Technically speaking I am currently a student, so despite I’m older than many other students, I can join them for free pizza 😛 But my luck was not about the pizza. I got my chance to meet and talk with Bjarne Stroustrup, the father of C++ language! It was all began when all students joining the dinner had to meet up in...

VPS Experience (Part 1): Moving to VPS to Host Personal Blogs

So I decided to move my blog from shared hosting so VPS hosting. VPS is getting cheaper everyday with as low as $2 per day makes it a good bargain to host blog in VPS. With VPS, we can choose which software we want to install, and configure it in our own taste. But definitely, choosing VPS is not for everyone. It is more suitable for advanced user as configuring...

Lesson learned: Do Not Store rvalue Reference Outlive its Declaration

I am building a custom operator overloading structures in C++, and was really seduced with what rvalue promises: the lifetime of rvalue reference is bound to the expression of its context. Rvalue references can be used to extend the lifetimes of temporary objects (cppreference.com) I was building a combination of operators which accepts a lot of literals and temporary objects including lambda. So for instance: auto res = ObjectA() *...

Tizen Studio on Other Than Ubuntu

It’s pain in the ass. Really. If you can stick to Ubuntu or its derivatives, please do that. I kinda hate how Tizen Studio is developed to only support Ubuntu out-of-the-box. A software should not dictate what Linux distro it should be installed on. Distro is just like a religion for some people, and some people are like me, who doesn’t like Ubuntu and its bloatware. Personally I use OpenSUSE...

Weird std::thread bug on GCC 4.9 on ARM target

I have been dealing with Tizen development since about last year, and since then I have been learning of utilizing C++11 features on my codes. Currently I am developing a some kind of component to help performing message pump in threading, so you can dispatch a function to a queue to be performed in separate thread. It is a simple components actually. You can take a look at GitHub. DispatchQueue...

GPS Library for Windows 10 IoT and Raspberry Pi

I am tinkering with Raspberry Pi 3 (RasPi) and Windows 10 IoT Core. I was thinking how to build an IoT device with GPS functionality in RasPi. Many IoT projects employ GPS module but they use it mostly with Arduino to build quadcopter. Some people tried it with RasPi, but they use it in Raspbian OS. No one seems tried to build directly with RPi and Windows. So, I made...

(Almost) Seamlessly Integrate Android Layout XML to Code Behind Reference

It’s been a while since my last post. With this post, I would like to share a little bit of my toolkit which I use extensively on my Android project. 🙂 Overview So basically, when you are developing apps for Android, you use Android XML file to define the User Interface (UI) layout structure, then you code using Java for the implementation. Basically they resembles the .NET WPF/Silverlight’s XAML development,...

Ambiguous Result

Another quo-de for today. You can see how ambiguous this function call protected void onPostExecute(RefreshTaskResult<ActionResult<SquadInfoShort>> result) { // Check result if(result.getResult().getResult()) { } } What result?

Using Generics in an Ugly Way

Previously I was talking about generics. You can see how I do with generics to the confusing level: new AsyncTask<Void, Void, RefreshTaskResult<ActionResult<List<SquadInfoShort>>>>() { protected RefreshTaskResult<ActionResult<List<SquadInfoShort>>> doInBackground(Void… params) { try { ActionResult<List<SquadInfoShort>> result = client.getSquadList(); return new RefreshTaskResult<ActionResult<List<SquadInfoShort>>>(result); } catch (Exception e) { // Catch any exception return new RefreshTaskResult<ActionResult<List<SquadInfoShort>>>(e); } } }.execute(); See how many < > to feast your eyes.

Generics in WCF REST JSON Communication

Overview So I got a task in designing a scalable and modular Service Oriented application using JSON and WCF. I am designing a web service using WCF. The communication between the web service and the client will be using JSON. While the server is using .NET Framework, the client is using Android Java. I aim to design the service as modular as possible. For every web service request from the client,...