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When to make a type non-movable in C++11?
I was surprised this didn't show up in my search results, I thought someone would've asked this before, given the usefulness of move semantics in C++11:
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Why is the .bss segment required?
...
For example, consider having many uninitialized buffers 4096 bytes in length. Would you want all of those 4k buffers to contribute to the size of the binary? That would be a lot of wasted space.
– Jeff Mercado
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Why does Unicorn need to be deployed together with Nginx?
...ing Unicorn without a reverse proxy. However, that wouldn't be a very good idea; let's see why.
Unicorn follows the Unix philosophy which is to do one thing and do it well, and that is to serve fast, low-latency clients (we'll see what this means later on). The fact that Unicorn is designed for fas...
Why is Go so slow (compared to Java)?
...ptimisation). gccgo uses GCC's existing optimisation passes, and might provide a more pointful comparison with C, but gccgo isn't feature-complete yet.
Benchmark figures are almost entirely about quality of implementation. They don't have a huge amount to do with the language as such, except to the...
git stash blunder: git stash pop and ended up with merge conflicts
I did a git stash pop and ended up with merge conflicts. I removed the files from the file system and did a git checkout as shown below, but it thinks the files are still unmerged. I then tried replacing the files and doing a git checkout again and same result. I event tried forcing it with -...
Running a Haskell program on the Android OS
...it is by first getting a Haskell compiler which can target C with the android NDK which comes with a GCC port for ARM architectures. JHC can trivially do this with a very small inf style file which describes the platform (word size, c-compiler, etc) I've done this with the Wii homebrew dev kit and i...
使用虚拟现实和App Inventor进行实验 · App Inventor 2 中文网
...用程序，用于管理与 Cardboard 库的交互。具有 Java 和 Android 经验的开发人员可以将其用作指南，为 App Inventor 社区创建更丰富的 Cardboard 集成可能性。开发人员还应注意，刚刚发布的 Android 系统 7 (Nougat) 包含 Google 的 Daydream VR 软件...
valueOf() vs. toString() in Javascript
...", javascript first collects primitive values of the operands, and then decides if addition or concatenation should be applied, based on the type of each primitive.
So, this is how you think it works
a + b:
pa = ToPrimitive(a)
if(pa is string)
return concat(pa, ToString(b))
else...
What is data oriented design?
...is:
class Ball {
Point position;
Color color;
double radius;
void draw();
};
And then you would create a collection of balls like this:
vector<Ball> balls;
Data Oriented Approach
In Data Oriented Design, however, you are more likely to write the code like this:
class Balls {...
How to pass the values from one activity to previous activity
...nt resultIntent = new Intent();
resultIntent.putExtra(PUBLIC_STATIC_STRING_IDENTIFIER, enteredTextValue);
setResult(Activity.RESULT_OK, resultIntent);
finish();
The final step is in the calling Activity: Override onActivityResult to listen for callbacks from the text entry Activity. Get the extra ...