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How do I cast a variable in Scala?
...e a way to get 'base' casted to MyConcrete even if want to extract "value" by exploiting the 'unapply' call performed by "case MyConcrete(value)" ?
– ithkuil
Dec 11 '10 at 17:52
...
Eclipse count lines of code
...xport -> Other -> Metrics.
You can adjust the Lines of Code metrics by ignoring blank and comment-only lines or exclude Javadoc if you want. To do this check the tab at Preferences -> Metrics -> LoC.
That's it. There is no special option to exclude curly braces {}.
The plugin offers a...
Python: Get the first character of the first string in a list?
...hings up for me:
"Losing your Loops, Fast Numerical Computing with NumPy" by PyCon 2015:
https://youtu.be/EEUXKG97YRw?t=22m22s
"NumPy Beginner | SciPy 2016 Tutorial" by Alexandre Chabot LeClerc:
https://youtu.be/gtejJ3RCddE?t=1h24m54s
...
Python syntax for “if a or b or c but not all of them”
...
Which translates the title of your question.
UPDATE: as correctly said by Volatility and Supr, you can apply De Morgan's law and obtain equivalent:
if (a or b or c) and not (a and b and c):
My advice is to use whichever form is more significant to you and to other programmers. The first means...
What are the mechanics of short string optimization in libc++?
...bit goes to the long/short flag.
7 bits goes to the size.
Assuming char, 1 byte goes to the trailing null (libc++ will always store a trailing null behind the data).
This leaves 3 words minus 2 bytes to store a short string (i.e. largest capacity() without an allocation).
On a 32 bit machine, 10 ...
Python 3: UnboundLocalError: local variable referenced before assignment [duplicate]
...
You can fix this by passing parameters rather than relying on Globals
def function(Var1, Var2):
if Var2 == 0 and Var1 > 0:
print("Result One")
elif Var2 == 1 and Var1 > 0:
print("Result Two")
elif Var1 <...
How can I get zoom functionality for images?
...same as
ImageView. Example:
TouchImageView img = (TouchImageView) findViewById(R.id.img);
If you are using TouchImageView in xml, then you must provide the full package
name, because it is a custom view. Example:
<com.example.touch.TouchImageView
android:id="@+id/img”
android:layout...
Disable building workspace process in Eclipse
... and cancel.
When a build is cancelled, it typically handles this by discarding incremental build state and letting the next build be a full rebuild. This can be quite expensive in some projects.
As a user I think I would rather wait for the 5 second incremental build to finish rather tha...
What resources are shared between threads?
...om section 2.2.2 The Classical Thread Model in Modern Operating Systems 3e by Tanenbaum:
The process model is based on two independent concepts: resource
grouping and execution. Sometimes it is useful to separate them;
this is where threads come in....
He continues:
One way of looki...
Implementing MVC with Windows Forms
...n application (3 tier)
Use a set of web services that were written for use by many applications and can’t be changed for your application. (Service-oriented architecture)
Updates being done by CRUD operations
Updates being done with the command pattern (sending commands to backend server)
Lots of ...