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Calling Java varargs method with single null argument?
...a doesn't know what type it is supposed to be. It could be a null Object, or it could be a null Object array. For a single argument it assumes the latter.
You have two choices. Cast the null explicitly to Object or call the method using a strongly typed variable. See the example below:
public ...
Adding dictionaries together, Python [duplicate]
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If you're interested in creating a new dict without using intermediary storage: (this is faster, and in my opinion, cleaner than using dict.items())
dic2 = dict(dic0, **dic1)
Or if you're happy to use one of the existing dicts:
dic0.update(dic1)
...
ctypes - Beginner
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Here's a quick and dirty ctypes tutorial.
First, write your C library. Here's a simple Hello world example:
testlib.c
#include <stdio.h>
void myprint(void);
void myprint()
{
printf("hello world\n");
}
Now compile it as a shared library (mac fix fo...
Can I see changes before I save my file in Vim?
I use Vim.
I open a file. I edit it and I want to see what I've edited before I save it.
14 Answers
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Stop execution of Ruby script
Is there a method like exit or die in PHP which stops the execution of a Ruby script?
4 Answers
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Laravel requires the Mcrypt PHP extension
... function in Laravel 4 on OSX . However, I am getting the following error:
22 Answers
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In git, is there a way to show untracked stashed files without applying the stash?
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Untracked files are stored in the third parent of a stash commit. (This isn't actually documented, but is pretty obvious from The commit which introduced the -u feature, 787513..., and the way the rest of the documentation for git-stash phrases th...
Can existing virtualenv be upgraded gracefully?
I have a virtualenv created for Python 2.5 and want to "upgrade" it to Python 2.6.
5 Answers
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.NET: Which Exception to Throw When a Required Configuration Setting is Missing?
...not limited in your exception-throwing to existing exceptions in the Framework. If you do decide to use existing exceptions, you don't absolutely have to follow the documentation to the letter. The documentation will describe how the framework uses a given exception, but doesn't imply any limitati...
What is the best way to concatenate two vectors?
I'm using multitreading and want to merge the results. For example:
8 Answers
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