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Why use pointers? [closed]
...tead of a char pointer with the %s formatter?
char* a = "Hello";
int b = 120;
printf("Second char is: %s", b);
This would print whatever is found on memory address 120 and go on printing until a null character was found. It is wrong and illegal to perform this printf statement, but it would proba...
What is the difference between class and instance attributes?
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answered Oct 16 '08 at 1:26
Alex CoventryAlex Coventry
55.1k44 gold badges3232 silver badges3737 bronze badges
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Center a position:fixed element
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627
You basically need to set top and left to 50% to center the left-top corner of the div. You als...
How to install Google Play Services in a Genymotion VM (with no drag and drop support)?
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As of Genymotion 2.10.0 and onwards, GApps can be installed from the emulator toolbar.
Please refer to answer by @MichaelStoddart.
Next follows former answer kept here for historic reason:
Genymotion doesn't provide Google Apps. To install ...
client secret in OAuth 2.0
To use google drive api, I have to play with the authentication using OAuth2.0. And I got a few question about this.
3 Answ...
Plotting time in Python with Matplotlib
...imestamps to Python datetime objects (use datetime.strptime). Then use date2num to convert the dates to matplotlib format.
Plot the dates and values using plot_date:
dates = matplotlib.dates.date2num(list_of_datetimes)
matplotlib.pyplot.plot_date(dates, values)
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Explain how finding cycle start node in cycle linked list work?
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21 Answers
21
Active
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hash function for string
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I've had nice results with djb2 by Dan Bernstein.
unsigned long
hash(unsigned char *str)
{
unsigned long hash = 5381;
int c;
while (c = *str++)
hash = ((hash << 5) + hash) + c; /* hash * 33 + c */
return hash;
}
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Node.js - Find home directory in platform agnostic way
Process.platform returns "win32" for Windows. On Windows a user's home directory might be C:\Users[USERNAME] or C:\Documents and Settings[USERNAME] depending on which version of Windows is being used. On Unix this isn't an issue.
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