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How do I measure execution time of a command on the Windows command line?
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How to use shared memory with Linux in C
...lains their purpose.
return mmap(NULL, size, protection, visibility, -1, 0);
}
The following is an example program that uses the function defined above to allocate a buffer. The parent process will write a message, fork, and then wait for its child to modify the buffer. Both processes can read a...
How to add icon inside EditText view in Android ?
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edited Nov 26 '10 at 0:38
answered Nov 26 '10 at 0:31
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Math.random() versus Random.nextInt(int)
...tributed bits in its mantissa, so it is uniformly distributed in the range 0 to 1-(2^-53).
Random.nextInt(n) uses Random.next() less than twice on average- it uses it once, and if the value obtained is above the highest multiple of n below MAX_INT it tries again, otherwise is returns the value ...
How to get the index of a maximum element in a numpy array along one axis
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>>> a.argmax(axis=0)
array([1, 1, 0])
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tmux: How to join two tmux windows into one, as panes?
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170
Actually I found the way to do that. Suppose the two windows are number 1 and 2. Use
join-pane ...
JavaScript: Check if mouse button down?
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Regarding Pax' solution: it doesn't work if user clicks more than one button intentionally or ac...
how to check redis instance version?
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$ redis-server --version
gives you the version.
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How does Duff's device work?
...re's the Wikipedia example with some notations.
Let's say you're copying 20 bytes. The flow control of the program for the first pass is:
int count; // Set to 20
{
int n = (count + 7) / 8; // n is now 3. (The "while" is going
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find vs find_by vs where
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Use whichever one you feel suits your needs best.
The find method is usually used to retrieve ...