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How to compile a 32-bit binary on a 64-bit linux machine with gcc/cmake
... I suggest to use an lxc container. lxc containers are 'something in the middle between a chroot on steroids and a full fledged virtual machine'.
For example, here's a way to build 32-bit wine using lxc on an Ubuntu Trusty system:
sudo apt-get install lxc lxc-templates
sudo lxc-create -t ubuntu -...
Why does the Scala compiler disallow overloaded methods with default arguments?
While there might be valid cases where such method overloadings could become ambiguous, why does the compiler disallow code which is neither ambiguous at compile time nor at run time?
...
Rails ActionMailer - format sender and recipient name/email address
...re taking user input for name and email, then unless you very carefully validate or escape the name and email, you can end up with an invalid From header by simply concatenating strings. Here is a safe way:
require 'mail'
address = Mail::Address.new email # ex: "john@example.com"
address.display_na...
Differences between distribute, distutils, setuptools and distutils2?
...ion, and don't trust out-of-date information.
The Python Packaging User Guide is worth a read. Every page has a "last updated" date displayed, so you can check the recency of the manual, and it's quite comprehensive. The fact that it's hosted on a subdomain of python.org of the Python Software Foun...
What is the difference between JDK dynamic proxy and CGLib?
...t would stop these libraries from allowing to subclass your class and override your methods.
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What is the __del__ method, How to call it?
...y block or to a context manager in a with statement. However, there are valid use cases for __del__: e.g. if an object X references Y and also keeps a copy of Y reference in a global cache (cache['X -> Y'] = Y) then it would be polite for X.__del__ to also delete the cache entry.
If you know tha...
How to remove all callbacks from a Handler?
...ndler = new Handler();
Runnable myRunnable = new Runnable() {
public void run() {
//Some interesting task
}
};
You can call myHandler.postDelayed(myRunnable, x) to post another callback to the message queue at other places in your code, and remove all pending callbacks with myHandl...
How to build an android library with Android Studio and gradle?
... but nothing I have tried is working. In Eclipse I have 3 projects (2 android app projects and 1 android library project). The 2 app projects depend on the library project. When I do the gradle export I get 3 projects that don't work. I am open to restructuring the project but haven't found any docu...
Node.js and CPU intensive requests
...tarted tinkering with Node.js HTTP server and really like to write server side Javascript but something is keeping me from starting to use Node.js for my web application.
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How can I let a table's body scroll but keep its head fixed in place?
...
unfortunately, this method fails when you have a wide table (horizontal scroll). You'll have two horizontal scrollbars; one for the header and one for the data.
– vol7ron
Aug 18 '11 at 21:41
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