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#define macro for debug printing in C?
..... } while (0) idiom ensures that the code acts like a statement (function call). The unconditional use of the code ensures that the compiler always checks that your debug code is valid — but the optimizer will remove the code when DEBUG is 0.
If you want to work with #ifdef DEBUG, then change t...
Disable scrolling in webview?
...omething I haven't been able to figure out on Android is how to programmatically prevent scrolling in a WebView ?
14 Answe...
belongs_to through associations
.....
def question
answer.question
end
end
this way the you can now call question on Choice
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How can I create a table with borders in Android?
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How would I set the background of the view programmatically? view.setBackground(?)
– rasen58
Dec 27 '12 at 21:29
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How does LMAX's disruptor pattern work?
...s of maintaining the consumed sequence numbers and provide a set of simple callbacks when important events occur. However, there are a couple of subtle differences.
The Disruptor uses a 1 thread - 1 consumer model, where Actors use an N:M model i.e. you can have as many actors as you like and they...
What is the meaning of addToBackStack with null parameter?
...ing of addToBackStack(null) followed by a commit()?
Quoting docs:
By calling addToBackStack(), the replace transaction is saved to the
back stack so the user can reverse the transaction and bring back the
previous fragment by pressing the Back button.
If you add multiple changes to th...
Comparison of full text search engine - Lucene, Sphinx, Postgresql, MySQL?
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Sphinx 2.3.2 Beta has now a feature called 'CALL SUGGEST' which can be used to implement 'did you mean ?' sphinxsearch.com/docs/devel.html#sphinxql-call-suggest
– Vinod K
Aug 2 '17 at 7:42
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Format of the initialization string does not conform to specification starting at index 0
...ur DbContext class as the startup project.
I was getting this error while calling enable-migrations.
Even if in the Package Manager Console I selected the right Default project, it was still looking at the web.config file of that startup project, where the connection string wasn't present.
...
Map enum in JPA with fixed values?
...se migration, you could jeopodise the integrity of your data.
3. Lifecycle Callbacks
A possible solution would to use the JPA lifecycle call back annotations, @PrePersist and @PostLoad. This feels quite ugly as you will now have two variables in your entity. One mapping the value stored in the datab...
Javascript/DOM: How to remove all events of a DOM object?
... I guess you already tried this and it didn't work. Here is the catch:
Calling addEventListener to an anonymous function creates a new listener each time. Calling removeEventListener to an anonymous function has no effect. An anonymous function creates a unique object each time it is called, it ...