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Why does base64 encoding require padding if the input length is not divisible by 3?
...wever, padding is useful in situations where base64 encoded strings are concatenated in such a way that the lengths of the individual sequences are lost, as might happen, for example, in a very simple network protocol.
If unpadded strings are concatenated, it's impossible to recover the original d...
Where does Scala look for implicits?
An implicit question to newcomers to Scala seems to be: where does the compiler look for implicits? I mean implicit because the question never seems to get fully formed, as if there weren't words for it. :-) For example, where do the values for integral below come from?
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How to permanently export a variable in Linux?
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You can add it to your shell configuration file, e.g. $HOME/.bashrc or more globally in /etc/environment.
After adding these lines the changes won't reflect instantly in GUI based system's you have to exit the terminal or create ...
What is “rvalue reference for *this”?
Came across a proposal called "rvalue reference for *this" in clang's C++11 status page .
3 Answers
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When is the thread pool used?
...e it completes the work, and the listener then returns the response to the caller.
4 Answers
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How to convert JSON to XML or XML to JSON?
...is class. I use NewtonSoft Json.net 3.5.
– David.Chu.ca
May 2 '09 at 18:51
3
It appears this func...
What do linkers do?
... C or C++ file) into an executable file (an executable file is a file that can be executed on your machine or someone else's machine running the same machine architecture).
Under the hood, when a program is compiled, the compiler converts the source file into object byte code. This byte code (some...
How to create a video from images with FFmpeg?
...fps=25 -pix_fmt yuv420p out.mp4
Alternatively the format video filter can be added to the filter chain to replace -pix_fmt yuv420p like "fps=25,format=yuv420p". The advantage of this method is that you can control which filter goes first
ffmpeg -r 1/5 -i img%03d.png -c:v libx264 -vf "fps=25,f...
What does Expression.Quote() do that Expression.Constant() can’t already do?
...legate or an expression tree.
Let's begin by dismissing the uninteresting case. If we wish it to return a delegate then the question of whether to use Quote or Constant is a moot point:
var ps = Expression.Parameter(typeof(int), "s");
var pt = Expression.Parameter(typeof(int), "t")...
What C++ Smart Pointer Implementations are available?
...ng limited garbage collection facilities. The first downside being that it calls delete upon destruction making them unacceptable for holding array allocated objects (new[]). It takes ownership of the pointer so two auto pointers shouldn't contain the same object. Assignment will transfer ownership ...