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What are Scala context and view bounds?
...it is:
What is a View Bound?
A view bound was a mechanism introduced in Scala to enable the use of some type A as if it were some type B. The typical syntax is this:
def f[A <% B](a: A) = a.bMethod
In other words, A should have an implicit conversion to B available, so that one can call B me...
RESTful API methods; HEAD & OPTIONS
I'm writing a RESTful API module for an application in PHP, and I'm a bit mixed on the verbs HEAD and OPTIONS .
3 Answer...
Difference between std::system_clock and std::steady_clock?
...ifference between std::system_clock and std::steady_clock ? (An example case that illustrate different results/behaviours would be great).
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Can JSON start with “[”?
From what I can read on json.org , all JSON strings should start with { (curly brace), and [ characters (square brackets) represent an array element in JSON.
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Scheduling recurring task in Android
...'m designing an app that has a recurring task of sending presence to a dedicated server as long as the app is in foreground.
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kernel stack and user space stack
...ence between kernel stack and user stack? Why kernel stack is used? If a local variable is declared in an ISR, where it will be stored? Does each process has its own kernel stack? Then how the process coordinates between both these stacks?
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How to get StackPanel's children to fill maximum space downward?
...nts in the DockPanel with DockPanel.Dock="Top", and then your help control can fill the remaining space.
XAML:
<DockPanel Width="200" Height="200" Background="PowderBlue">
<TextBlock DockPanel.Dock="Top">Something</TextBlock>
<TextBlock DockPanel.Dock="Top">Somethin...
What does template mean?
...rfectly possible to template a class on an integer rather than a type. We can assign the templated value to a variable, or otherwise manipulate it in a way we might with any other integer literal:
unsigned int x = N;
In fact, we can create algorithms which evaluate at compile time (from Wikipedi...
Fixed point vs Floating point number
I just can't understand fixed point and floating point numbers due to hard to read definitions about them all over Google. But none that I have read provide a simple enough explanation of what they really are. Can I get a plain definition with example?
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How to write a cron that will run a script every day at midnight?
...something like this:
00 00 * * * ruby path/to/your/script.rb
(00 00 indicates midnight--0 minutes and 0 hours--and the *s mean every day of every month.)
Syntax:
mm hh dd mt wd command
mm minute 0-59
hh hour 0-23
dd day of month 1-31
mt month 1-12
wd day of week 0-7 (Sunday = 0 o...