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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...
mysql - how many columns is too many?
...eral rule, your table structure should reflect your domain model; if you really do have 70 (100, what have you) attributes that belong to the same entity there's no reason to separate them into multiple tables.
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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 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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How to use PHP OPCache?
PHP 5.5 has been released and it features a new code caching module called OPCache, but there doesn't appear to be any documentation for it.
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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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When to use volatile with multi threading?
....
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 ...
Formatting code in Notepad++
... To fix that you can do this stackoverflow.com/questions/6985637/… After all of that you should be able to TextFX -> HTML Tidy -> Tidy: Reindent XML as @gablin described.
– darren
Feb 1 '12 at 10:15
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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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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...