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How do synchronized static methods work in Java and can I use it for loading Hibernate entities?
If I have a util class with static methods that will call Hibernate functions to accomplish basic data access. I am wondering if making the method synchronized is the right approach to ensure thread-safety.
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print call stack in C or C++
Is there any way to dump the call stack in a running process in C or C++ every time a certain function is called? What I have in mind is something like this:
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What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?
...ch should help beginners (and intermediate) programmers to recognize and challenge their unwarranted assumptions in C, C++ and their platforms.
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How to make my custom type to work with “range-based for loops”?
...hanges, and compilers that do not.
The objects returned do not have to actually be iterators. The for(:) loop, unlike most parts of the C++ standard, is specified to expand to something equivalent to:
for( range_declaration : range_expression )
becomes:
{
auto && __range = range_expressi...
What's the difference between the atomic and nonatomic attributes?
...o are identical; "atomic" is the default behavior (note that it is not actually a keyword; it is specified only by the absence of nonatomic -- atomic was added as a keyword in recent versions of llvm/clang).
Assuming that you are @synthesizing the method implementations, atomic vs. non-atomic chang...
How to generate JAXB classes from XSD?
...d we return a lot of XML. With this we decided to use JAXB. So far, we manually coded the Models for the XML.
10 Answers
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How do you detect/avoid Memory leaks in your (Unmanaged) code? [closed]
... Valgrind for Linux (and OS X). If you use windose - deleaker - best of all!
– John Smith
Dec 12 '11 at 18:12
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Why won't my PHP app send a 404 error?
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Your code is technically correct. If you looked at the headers of that blank page, you'd see a 404 header, and other computers/programs would be able to correctly identify the response as file not found.
Of course, your users are still SOL. N...
What are the differences between numpy arrays and matrices? Which one should I use?
...ted/numpy.matrix.html
As other answers already state that you can achieve all the operations with NumPy arrays.
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Multiprocessing - Pipe vs Queue
... as a bonus; JoinableQueue() accounts for tasks when queue.task_done() is called (it doesn't even know about the specific task, it just counts unfinished tasks in the queue), so that queue.join() knows the work is finished.
The code for each at bottom of this answer...
mpenning@mpenning-T61:~$ pyt...