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Unit Testing C Code [closed]
I worked on an embedded system this summer written in straight C. It was an existing project that the company I work for had taken over. I have become quite accustomed to writing unit tests in Java using JUnit but was at a loss as to the best way to write unit tests for existing code (which needed...
What is the copy-and-swap idiom?
What is this idiom and when should it be used? Which problems does it solve? Does the idiom change when C++11 is used?
5 An...
How important is the order of columns in indexes?
...umn eliminates more results than restricting on your second column first? It's easier if you picture how the index must be traversed across, column 1, then column 2, etc...you see that lopping off most of the results in the fist pass makes the 2nd step that much faster.
Another case, if you quer...
Do spurious wakeups in Java actually happen?
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The Wikipedia article on spurious wakeups has this tidbit:
The pthread_cond_wait() function in Linux is implemented using the futex system call. Each blocking system call on Linux returns abruptly with EINTR when the process receives a signal. ... pthread_cond_wait() can't re...
Check whether number is even or odd
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You can use the modulus operator, but that can be slow. If it's an integer, you can do:
if ( (x & 1) == 0 ) { even... } else { odd... }
This is because the low bit will always be set on an odd number.
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Return all enumerables with yield return at once; without looping through
...tion to get validation errors for a card. My question relates to dealing with GetErrors. Both methods have the same return type IEnumerable<ErrorInfo> .
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Django Passing Custom Form Parameters to Formset
...eanest approach, and doesn't affect ServiceForm in any way (i.e. by making it difficult to subclass).
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How to avoid reverse engineering of an APK file?
...aruk: Whatever you do to your code, a potential attacker is able to change it in any way she or he finds it feasible. You basically can't protect your application from being modified. And any protection you put in there can be disabled/removed.
2. How can I protect all the app's resources, ass...
How to disable HTML links
...a link (in a portable way). You can use one of these techniques (each one with its own benefits and disadvantages).
CSS way
This should be the right way (but see later) to do it when most of browsers will support it:
a.disabled {
pointer-events: none;
}
It's what, for example, Bootstrap 3.x...
Any reason to clean up unused imports in Java, other than reducing clutter?
...ny good reason to avoid unused import statements in Java? As I understand it, they are there for the compiler, so lots of unused imports won't have any impacts on the compiled code. Is it just to reduce clutter and to avoid naming conflicts down the line?
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