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Volatile Vs Atomic [duplicate]
...write to i between the read and the write.
The Atomic classes, like AtomicInteger and AtomicReference, provide a wider variety of operations atomically, specifically including increment for AtomicInteger.
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Algorithm to return all combinations of k elements from n
...gray codes:
Some Hamilton Paths and a Minimal Change Algorithm
Adjacent Interchange Combination Generation Algorithm
Here are some other papers covering the topic:
An Efficient Implementation of the Eades, Hickey, Read Adjacent Interchange Combination Generation Algorithm (PDF, with code in P...
Android webview slow
...rity.HIGH);
Enable/disable hardware acceleration:
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
// chromium, enable hardware acceleration
webView.setLayerType(View.LAYER_TYPE_HARDWARE, null);
} else {
// older android version, disable hardware acceleration
webView....
NTFS performance and large volumes of files and directories
...hild's file data. Note: I am simplifying this somewhat but this gets the point across.
The index file will get fragmented. When it gets too fragmented, you will be unable to add files to that folder. This is because there is a limit on the # of fragments that's allowed. It's by design. I've confirme...
Specifying and saving a figure with exact size in pixels
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I had same issue. I used PIL Image to load the images and converted to a numpy array then patched a rectangle using matplotlib. It was a jpg image, so there was no way for me to get the dpi from PIL img.info['dpi'], so the accepted solution did not work for me. But after some tinker...
Haskell: Where vs. Let
...d things in outer scopes.
2: To use a where in the first example, you can introduce a second named function
that takes the x as a parameter, like this:
f = State f'
f' x = y
where y = ... x ...
or like this:
f = State f'
where
f' x = y
where y = ... x ...
3: Here is a comp...
Is it possible to use “/” in a filename?
...our file defined in fs/namei.c called renameat:
SYSCALL_DEFINE4(renameat, int, olddfd, const char __user *, oldname,
int, newdfd, const char __user *, newname)
When the system call gets invoked, it does a path lookup (do_path_lookup) on the name. Keep tracing this, and we get to l...
How to modify memory contents using GDB?
...that we can use several commands to access and read memory: for example, print, p, x...
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Why an abstract class implementing an interface can miss the declaration/implementation of one of th
...rious thing happens in Java when you use an abstract class to implement an interface: some of the interface's methods can be completely missing (i.e. neither an abstract declaration or an actual implementation is present), but the compiler does not complain.
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gcc warning" 'will be initialized after'
...itializer list in the same order as they appear in the class
Class C {
int a;
int b;
C():b(1),a(2){} //warning, should be C():a(2),b(1)
}
or you can turn -Wno-reorder
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