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How to track down a “double free or corruption” error
...rs you can check this or this or any modern c++ compilers (e.g. gcc, clang etc.) documentations.
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Useful GCC flags for C
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Always use -O or above (-O1, -O2, -Os, etc.). At the default optimization level, gcc goes for compilation speed and doesn't do enough analysis to warn about things like unitialized variables.
Consider making -Werror policy, as warnings that don't stop the compila...
Why can't C compilers rearrange struct members to eliminate alignment padding? [duplicate]
...constant folding, transformation of a switch statement into binary search, etc. Thus the benefits to be gained by allowing the compiler to optimize data structures appear to be less tangible than traditional compiler optimizations.
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retrieve links from web page using python and BeautifulSoup [closed]
...mple method to scrub the url list of the sites 'internal' navigation urls, etc.
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CURL alternative in Python
...amp; POST requests.
If you need to use other HTTP verbs like DELETE, PUT, etc you'll probably want to take a look at PYCURL
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Using vagrant to run virtual machines with desktop environment
...ant user. To do this you need to permit anyone to start the GUI: sudo vim /etc/X11/Xwrapper.config and edit it to allowed_users=anybody.
Next, install the VirtualBox guest tools before starting the GUI. This will give you a healthy screen resolution, integrated mouse, etc.
$ sudo apt-get install -y ...
Timer function to provide time in nano seconds using C++
...u are measuring code involving sleep, mutex lock, condition_variable wait, etc, the rdtsc clock is likely to have inaccurate conversions to other units. It is a good idea to set your measurements up so that you can easily change and compare clocks (as shown in this answer).
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Differences between Ant and Maven [closed]
...tory", "Put the results in target/classses", "Create a JAR from the ....", etc. Where Ant had to be explicit about the process, there was something "built-in" to Maven that just knew where the source code was and how it should be processed.
High-level Comparison
The differences between Ant and Ma...
How do you clear the SQL Server transaction log?
...based on the current time (but you can also do this with maintenance plans etc., just don't choose any of the shrink options in maintenance plans, they're awful).
DECLARE @path NVARCHAR(255) = N'\\backup_share\log\testdb_'
+ CONVERT(CHAR(8), GETDATE(), 112) + '_'
+ REPLACE(CONVERT(CHAR(8), GET...
Is 'switch' faster than 'if'?
...s that correct? If so, isn't that usually slower due to more difficult prefetching/pipelining?
– user541686
Jul 24 '11 at 5:12
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