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What code analysis tools do you use for your Java projects? [closed]
...le):Missing a Javadoc comment.
My warning format transformations are done by my Ant script with Ant filterchains.
The second "integration" that I do is for warning suppression. By default, each tool supports comments or an annotation (or both) that you can place in your code to silence a warning t...
Why is unsigned integer overflow defined behavior but signed integer overflow isn't?
Unsigned integer overflow is well defined by both the C and C++ standards. For example, the C99 standard ( §6.2.5/9 ) states
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Language Books/Tutorials for popular languages
...don't really like Stroustrup's book, my preference goes to Thinking in C++ by Bruce Eckel. And I prefer ebooks, because i can Ctrl+F. It saved my life when I did Algorithms I class (with book Introduction to Algorithms)
– Tian Bo
Apr 24 '09 at 2:31
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What kind of virtual machine is BEAM (the Erlang VM)?
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The Erlang VM runs as one OS process. By default it runs one OS thread per core to achieve maximum utilisation of the machine. The number of threads and on which cores they run can be set when the VM is started.
Erlang processes are implemented entirely by the E...
Why do you have to link the math library in C?
...bc.so (or libc.a for static linking), which is linked into your executable by default (as if -lc were specified). GCC can be instructed to avoid this automatic link with the -nostdlib or -nodefaultlibs options.
The math functions in math.h have implementations in libm.so (or libm.a for static link...
Paging UICollectionView by cells, not screen
...ollectionView with horizontal scrolling and there are always 2 cells side-by-side per the entire screen. I need the scrolling to stop at the begining of a cell. With paging enabled, the collection view scrolls the whole page, which is 2 cells at once, and then it stops.
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Concept of void pointer in C programming
...zing a function which can receive pointer and store it in void pointer and by using that void pointer we can make a generalized function..
You cannot just dereference it in a portable way, as it may not be properly aligned. It may be an issue on some architectures like ARM, where pointer to a data...
What does it mean to “program to an interface”?
...ce, but beyond that I finally understood their use as a language construct by thinking of them as a means of classifying common traits or behaviors that were exhibited by potentially many non-related classes of objects.
For example -- say you have a SIM game and have the following classes:
class H...
Total memory used by Python process?
...ocess = psutil.Process(os.getpid())
print(process.memory_info().rss) # in bytes
On my current Python 2.7 install with psutil 5.6.3, the last line should be
print(process.memory_info()[0])
instead (there was a change in the API).
Note: do pip install psutil if it is not installed yet.
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Why does Double.NaN==Double.NaN return false?
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NaN is by definition not equal to any number including NaN. This is part of the IEEE 754 standard and implemented by the CPU/FPU. It is not something the JVM has to add any logic to support.
http://en.wikipedia.org/wiki/NaN
A...