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Generating random numbers in Objective-C

I'm a Java head mainly, and I want a way to generate a pseudo-random number between 0 and 74. In Java I would use the method: ...
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What is the difference between new/delete and malloc/free?

What is the difference between new / delete and malloc / free ? 15 Answers 15 ...
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Google Maps Android API v2 - Interactive InfoWindow (like in original android google maps)

.... */ private int bottomOffsetPixels; /** * A currently selected marker */ private Marker marker; /** * Our custom view which is returned from either the InfoWindowAdapter.getInfoContents * or InfoWindowAdapter.getInfoWindow */ private View infoW...
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A semantics for Bash scripts?

...ripts that appear to work. However, I don't really know what's going on, and I was hoping for a more formal introduction to Bash as a programming language. For example: What is the evaluation order? what are the scoping rules? What is the typing discipline, e.g. is everything a string? What is the...
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Where are Docker images stored on the host machine?

...r/graph/<id> now only contains metadata about the image, in the json and layersize files. In the case of aufs: /var/lib/docker/aufs/diff/<id> has the file contents of the images. /var/lib/docker/repositories-aufs is a JSON file containing local image information. This can be viewed w...
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What are some uses of template template parameters?

... all specializations of H. NOTE: I've been programming c++ for many years and have only needed this once. I find that it is a rarely needed feature (of course handy when you need it!). I've been trying to think of good examples, and to be honest, most of the time this isn't necessary, but let's co...
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How to send email attachments?

I am having problems understanding how to email an attachment using Python. I have successfully emailed simple messages with the smtplib . Could someone please explain how to send an attachment in an email. I know there are other posts online but as a Python beginner I find them hard to understand....
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Redirecting Output from within Batch file

I am creating a batch file with some simple commands to gather information from a system. The batch file contains commands to get the time, IP information, users, etc. ...
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How can I specify working directory for popen

Is there a way to specify the running directory of command in Python's subprocess.Popen() ? 1 Answer ...
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To ARC or not to ARC? What are the pros and cons? [closed]

...ge collection. It has no GC runtime overhead. The compiler inserts retains and releases in all the places you should have anyway. But it's smarter than you and can optimize out the ones that aren't actually needed (just like it can unroll loops, eliminate temporary variables, inline functions, etc.)...