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Is returning by rvalue reference more efficient?

for example: 2 Answers 2 ...
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SQLite table constraint - unique on multiple columns

I can find syntax "charts" on this on the SQLite website, but no examples and my code is crashing. I have other tables with unique constraints on a single column, but I want to add a constraint to the table on two columns. This is what I have that is causing an SQLiteException with the message "syn...
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Resizing an Image without losing any quality [closed]

How can I resize an image, with the image quality unaffected? 11 Answers 11 ...
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iOS - Dismiss keyboard when touching outside of UITextField

I'm wondering how to make the keyboard disappear when the user touches outside of a UITextField . 36 Answers ...
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Tutorials and libraries for OpenGL-ES games on Android [closed]

What tutorials and libraries are available which can help beginners to develop 2D and 3D games on Android using OpenGL-ES? I'm looking for tutorials which can help me learn OpenGL-ES, and I'm looking for OpenGL-ES libraries which can make life easier for beginners in OpenGL-ES. ...
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How to compare times in Python?

I see that date comparisons can be done and there's also datetime.timedelta() , but I'm struggling to find out how to check if the current time ( datetime.datetime.now() ) is earlier, later or the same than a specified time (e.g. 8am) regardless of the date. ...
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Return HTTP status code 201 in flask

We're using Flask for one of our API's and I was just wondering if anyone knew how to return a HTTP response 201? 9 Answers...
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how to change any data type into a string in python

How can I change any data type into a string in Python? 10 Answers 10 ...
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How to make the corners of a button round?

I want to make the corners of a button round. Is there an easy way to achieve this in Android? 13 Answers ...
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iPhone Simulator - Simulate a slow connection?

Is there a way to slow down the internet connection to the iPhone Simulator, so as to mimic how the App might react when you are in a slow spot on the cellular network? ...