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Is returning by rvalue reference more efficient?
... ab, or do RVO to omit doing a move or copy altogether. I recommend you to read BoostCon09 Rvalue References 101 which explains the matter, and how (N)RVO happens to interact with this.
Your case of returning an rvalue reference would be a good idea in other occasions. Imagine you have a getAB() ...
Dialog to pick image from gallery or from camera
... the manifest file:
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
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How do you render primitives as wireframes in OpenGL?
... (line_strip, max_vertices=3) out; to layout (points, max_vertices=3) out;
Read more about Geometry Shaders
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How to record webcam and audio using webRTC and a server-based Peer connection
... you got that answer, it's probably because you asked something that was already there or in the list. It looks like you were trying to compile a SNAPSHOT version. Those artifacts don't get published in central, so either you checkout a release of the tutorials or use our internal dev repo. This has...
Calculate size of Object in Java [duplicate]
... linked has a great example, which I'll repost here, but you should have already looked at from his comment:
import java.lang.instrument.Instrumentation;
public class ObjectSizeFetcher {
private static Instrumentation instrumentation;
public static void premain(String args, Instrumentation...
How to document thrown exceptions in c#/.net
...doesn't exists")
}
// Maybe go on to check you have permissions to read from it.
System.IO.File.Open(somepath...); // this may still throw FileNotFoundException though
}
With this approach, it's easier to document all the exceptions you explicitly throw without having to also document...
Get generated id after insert
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I read on specs. "Returns: the row ID of the newly inserted row, or -1 if an error occurred" the rowId is the same as my generated field "id primary key autoincrement" ?
– Marcos Vasconcelos
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Select multiple columns in data.table by their numeric indices
...nswer to announce the change up top. (And please -- you or anyone else who reads this -- feel free to ping me with a reminder as soon as that happens.)
– Josh O'Brien
Aug 24 '15 at 23:28
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Why are two different concepts both called “heap”?
...
Actually, reading about the way memory is allocated (see Buddy Blocks) reminds me of a heap in data structures.
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Singletons vs. Application Context in Android?
...aded resources and other such things.
Also for simple applications multithreading doesn't become an issue with singletons, because by design all standard callbacks to the app are dispatched on the main thread of the process so you won't have multi-threading happening unless you introduce it explici...