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How to change colors of a Drawable in Android?
...er( 0xffff0000, Mode.MULTIPLY ). This would set white pixels to red but I don't think it would affect the transparent pixels.
See Drawable#setColorFilter
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Is there a standard sign function (signum, sgn) in C/C++?
...t (or T) rather than an int, which seems wasteful.
Works for ints, floats, doubles, unsigned shorts, or any custom types constructible from integer 0 and orderable.
Fast! copysign is slow, especially if you need to promote and then narrow again. This is branchless and optimizes excellently
Standards...
Using the “animated circle” in an ImageView while loading stuff
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You can do this by using the following xml
<RelativeLayout
style="@style/GenericProgressBackground"
android:id="@+id/loadingPanel"
>
<ProgressBar
style="@style/GenericProgressIndicator"/>
</Rel...
Why does NULL = NULL evaluate to false in SQL server
...luates to false. This is counterintuitive and has caused me many errors. I do understand the IS NULL and IS NOT NULL keywords are the correct way to do it. But why does SQL server behave this way?
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Pick a random value from an enum?
...is caching the result of values() because each call copies an array. Also, don't create a Random every time. Keep one. Other than that what you're doing is fine. So:
public enum Letter {
A,
B,
C,
//...
private static final List<Letter> VALUES =
Collections.unmodifiableList(Arra...
Runnable with a parameter?
...r a "Runnable that accepts a parameter" although I know that such runnable doesn't really exist.
7 Answers
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History or log of commands executed in Git
Is there a way I can keep track of commands I used in Git under Windows? I want to view all the commands that I have applied on my repository.
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Javascript !instanceof If Statement
... basic question really just to satisfy my curiosity, but is there a way to do something like this:
3 Answers
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How to check BLAS/LAPACK linkage in NumPy and SciPy?
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How do you interpret the output?
– Edward Newell
Apr 30 '16 at 17:21
18
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arrayfun can be significantly slower than an explicit loop in matlab. Why?
...tion got us factor 5 speedup. I guess this shows that MATLABs JIT compiler does not support inline functions. According to the answer by gnovice there, it is actually better to write a normal function rather than an anonymous one. Try it.
Next step - remove (vectorize) the inner loop:
tic
Soln4 = ...