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How to return an array from JNI to Java?
...his case, the JNI function in the example creates a number of arrays. The outer array is comprised of an 'Object' array creating with the JNI function NewObjectArray(). From the perspective of JNI, that's all a two dimensional array is, an object array containing a number of other inner arrays.
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Why is address zero used for the null pointer?
...r different representations for pointers to different types?", that points out several platforms that used this property of 0 being the null pointer in C source while represented differently at runtime. The C++ standard has a note that makes clear that converting "an integral constant expression wit...
Dictionary vs Object - which is more efficient and why?
...oo, just to make sure (I didn't have psutil installed, so I took that part out). Anyway, this is baffling to me, and means the original question is not fully answered. All the other answers are like "namedtuple is great" and "use slots", and apparently a brand new dict object every time is faster th...
Is there an easy way to add a border to the top and bottom of an Android View?
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I've used a trick so that the border is displayed outside the container. With this trick only a line is drawn so the background will be shown of the underlying view.
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/re...
Create a tar.xz in one command
... last, since it specifies the filename (thanks to @A-B-B for pointing that out!). In that case, the command looks like:
tar -cJf <archive.tar.xz> <files>
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Different floating point result with optimization enabled - compiler bug?
The below code works on Visual Studio 2008 with and without optimization. But it only works on g++ without optimization (O0).
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Why does LayoutInflater ignore the layout_width and layout_height layout parameters I've specified?
I've had severe trouble getting LayoutInflater to work as expected, and so did other people: How to use layoutinflator to add views at runtime? .
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Passing command line arguments from Maven as properties in pom.xml
...ties plugin to solve this.
Properties are defined in the pom, and written out to a my.properties file, where they can then be accessed from your Java code.
In my case it is test code that needs to access this properties file, so in the pom the properties file is written to maven's testOutputDirect...
Rails has_and_belongs_to_many migration
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@Dex - Just out of curiosity, could you explain why you're using a second compound index, defined with reversed column order? I was under the impression that the column order didn't matter. I'm no DBA, just want to further my own underst...
git --git-dir not working as expected
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Starting git 1.8.5 (which should be out next week), it will be even simpler:
git -C "/home/domain/" status
No need to set --git-dir and --work-tree anymore!
See commit 44e1e4 by Nazri Ramliy:
It takes more keypresses to invoke git command in a differ...