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When you exit a C application, is the malloc-ed memory automatically freed?
...nal resources that are not cleaned up by the OS on exit, such as temporary files or any kind of change to the state of an external resource, then you will need code to deal with all of those things on exit, and this is often elegantly combined with freeing memory.
If your program starts having a lon...
Global access to Rake DSL methods is deprecated
...nstant Rake::DSL. It refers to a @DHH tweet.
Put the following in your Gemfile
gem "rake", "0.8.7"
You may see something like
rake aborted!
You have already activated Rake 0.9.1 ...
I still had a copy of Rake 0.9.1 in my directory so I deleted it.
You can "delete" Rake 0.9.1 by running the ...
Spring @Autowired usage
...a value in having a "centralized, declarative, configuration" like the xml files we all used to use. Then I realized that most of the stuff in the files wasn't configuration - it was never changed anywhere after development, ever. Then I realized that "centralized" only has value in quite small syst...
Upgrade python in a virtualenv
...s to the old virtualenv, you should save the dependencies in a requirement file (pip freeze > requirements.txt) and make a backup of it somewhere else. If anything goes wrong, you can still create a new virtualenv and install the old dependencies in it (pip install -r requirements.txt).
Updated:...
Is calculating an MD5 hash less CPU intensive than SHA family functions?
...seems that it has no advantage over sha1. I also tested some cases on real files and the results were always the same in both cases (likely limited by disk I/O).
md5sum of a large 4.6GB file took the exact same time than sha1sum of the same file, same goes with many small files (488 in the same dir...
How to remove the left part of a string?
I have some simple python code that searches files for a string e.g. path=c:\path , where the c:\path part may vary. The current code is:
...
What values should I use for CFBundleVersion and CFBundleShortVersionString?
...c/PlistBuddy -c "Set :CFBundleShortVersionString $buildNumber" "$INFOPLIST_FILE" # Version number
/usr/libexec/PlistBuddy -c "Set :CFBundleVersion $buildNumber" "$INFOPLIST_FILE" # Build number
echo "DateTime for app version number: $buildNumber"
Or do a hybrid, with a conventional 1.2.3 for the...
Redirecting stdout to “nothing” in python
...
note: it doesn't redirect at a file descriptor level i.e., it may fail to redirect the output of external child processes, the output from C extensions that print to C stdout directly, os.write(1, b'abc\n'). You need os.dup2(), to redirect at the file desc...
System.MissingMethodException: Method not found?
...tudio actually fixed it for me. I'm thinking it was caused by old assembly files still in use, and performing a "Clean Build" or restarting VS should fix it.
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How to declare global variables in Android?
...plication override to your application a tag is necessary in the manifest file. Again, see the Android docs for more info. An example:
<application
android:name="my.application.MyApp"
android:icon="..."
android:label="...">
</application>
NOTE 2: user608578 asks below...