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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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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...
Can I use if (pointer) instead of if (pointer != NULL)?
Is it safe to check a pointer to not being NULL by writing simply if(pointer) or do I have to use if(pointer != NULL) ?
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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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Why does this Java program terminate despite that apparently it shouldn't (and didn't)?
A sensitive operation in my lab today went completely wrong. An actuator on an electron microscope went over its boundary, and after a chain of events I lost $12 million of equipment. I've narrowed down over 40K lines in the faulty module to this:
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adb not finding my device / phone (MacOS X)
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Additonal Update : Do not underestimate the value of a good USB cable. Sometimes just swapping cables will help.
Update for newer versions of adb, ~/.android/adb_usb.ini has to be removed.
Executive summary: Add the Vendor ID ...
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 check if a stored procedure exists before creating it
...to be run every time a client executes the "database management" functionality. The script includes creating stored procedures on the client database. Some of these clients might already have the stored procedure upon running the script, and some may not. I need to have the missing stored procedure...
Why should we typedef a struct so often in C?
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As Greg Hewgill said, the typedef means you no longer have to write struct all over the place. That not only saves keystrokes, it also can make the code cleaner since it provides a smidgen more abstraction.
Stuff like
typedef struct {
int x, y;
} Point;
Point point_new(int x, int y)
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Are getters and setters poor design? Contradictory advice seen [duplicate]
I'm currently working on a simple game in Java with several different modes. I've extended a main Game class to put the main logic within the other classes. Despite this, the main game class is still pretty hefty.
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