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How to make my custom type to work with “range-based for loops”?

... The standard has been changed since the question (and most answers) were posted in the resolution of this defect report. The way to make a for(:) loop work on your type X is now one of two ways: Create member X::begin() and X::end...
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UILabel sizeToFit doesn't work with autolayout ios6

How am I supposed to configure programmatically (and in which method) a UILabel whose height depends on its text? I've been trying to set it up using a combination of Storyboard and code, but to no avail. Everyone recommends sizeToFit while setting lineBreakMode and numberOfLines . However, ...
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What is Type-safe?

... Type safety means that the compiler will validate types while compiling, and throw an error if you try to assign the wrong type to a variable. Some simple examples: // Fails, Trying to put an integer in a string String one = 1; // Also fails. int foo = "bar"; This also applies to method argume...
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Android Shared preferences for creating one time activity (example) [closed]

I have three activities A,B and C where A and B are forms and after filling and saving the form data in database(SQLITE). I am using intent from A to B and then B to C.What i want is that every time I open my app I want C as my home screen and not A and B anymore. ...
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Python loop that also accesses previous and next values

How can I iterate over a list of objects, accessing the previous, current, and next items? Like this C/C++ code, in Python? ...
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How to determine if a list of polygon points are in clockwise order?

...gth (x2-x1). Notice the sign convention in x. Try this with some triangles and you'll soon see how it works. – Beta Jul 27 '09 at 14:20 75 ...
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What should every JavaScript programmer know? [closed]

...ul, but they are often hiding the sometimes-ugly details of how JavaScript and the DOM actually work from you. If your aim is to be able to say “I know JavaScript”, then investing a lot of time in a framework is opposed to that. Here are some JavaScript language features that you should know to...
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How to make node.js require absolute? (instead of relative)

I would like to require my files always by the root of my project and not relative to the current module. 36 Answers ...
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List all files and directories in a directory + subdirectories

I want to list every file and directory contained in a directory and subdirectories of that directory. If I chose C:\ as the directory, the program would get every name of every file and folder on the hard drive that it had access to. ...
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What's the canonical way to check for type in Python?

... str (exclude subclasses): if type(o) is str: The following also works, and can be useful in some cases: if issubclass(type(o), str): See Built-in Functions in the Python Library Reference for relevant information. One more note: in this case, if you're using Python 2, you may actually want t...