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When to use volatile with multi threading?
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However two threads both accessing a shared variable is something which calls for protection via a mutex isn't it?
But in that case, between the thread locking and releasing the mutex the code is in a critical section where only that one thread can access the variable, in which case the variable ...
How does the bitwise complement operator (~ tilde) work?
...ng the binary representation of a number, taking its complement (inverting all the bits) and adding one. Two starts as 0000 0010, and by inverting the bits we get 1111 1101. Adding one gets us the result above. The first bit is the sign bit, implying a negative.
So let's take a look at how we get ~2...
Prevent user from seeing previously visited secured page after logout
...from the browser cache instead of straight from the server. This is essentially harmless, but indeed confusing to the enduser, because s/he incorrectly thinks that it's really coming from the server.
You just need to instruct the browser to not cache all the restricted JSP pages (and thus not only ...
List all files and directories in a directory + subdirectories
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string[] allfiles = Directory.GetFiles("path/to/dir", "*.*", SearchOption.AllDirectories);
where *.* is pattern to match files
If the Directory is also needed you can go like this:
foreach (var file in allfiles){
FileInfo in...
LINQ Select Distinct with Anonymous Types
...on of objects. The exact type isn't important. From it I want to extract all the unique pairs of a pair of particular properties, thusly:
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How do you tell if caps lock is on using JavaScript?
... you are interested in, may be by using a keymapping array which will hold all the valid use case keys you are addressing...
uppercase A-Z or 'Ä', 'Ö', 'Ü',
lowercase a-Z or 0-9 or 'ä', 'ö', 'ü'
The above keys are just sample representation.
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How can I copy data from one column to another in the same table?
Is it possible to copy data from column A to column B for all records in a table in SQL?
3 Answers
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Why are only a few video games written in Java? [closed]
...d port it, that takes a lot of effort (and of course, the license needs to allow it).
Also, a lot of legacy code already exists in C++. If code from previous projects can be reused (say, if you're writing a sequel), that counts even more in favor of sticking with the same language, instead of rewri...
Still Reachable Leak detected by Valgrind
All the functions mentioned in this block are library functions. How can I rectify this memory leak?
5 Answers
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What is the difference between UTF-8 and Unicode?
...'ve got lots of languages with lots of characters that computers should ideally display. Unicode assigns each character a unique number, or code point.
Computers deal with such numbers as bytes... skipping a bit of history here and ignoring memory addressing issues, 8-bit computers would treat an 8...