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Placeholder in UITextView

... I made a few minor modifications to bcd's solution to allow for initialization from a Xib file, text wrapping, and to maintain background color. Hopefully it will save others the trouble. UIPlaceHolderTextView.h: #import <Foundation/Foundation.h> IB_DESIGNABLE @interfac...
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Does C have a “foreach” loop construct?

Almost all languages have a foreach loop or something similar. Does C have one? Can you post some example code? 12 Answer...
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How to find out which package version is loaded in R?

... figuring out how to use my university cluster. It has 2 versions of R installed. System wide R 2.11 (Debian 6.0) and R 2.14.2 in non-standard location. ...
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What is __stdcall?

... __stdcall is the calling convention used for the function. This tells the compiler the rules that apply for setting up the stack, pushing arguments and getting a return value. There are a number of other calling conventions, __cd...
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Python class inherits object

... so are numerous, to list some of them: Support for descriptors. Specifically, the following constructs are made possible with descriptors: classmethod: A method that receives the class as an implicit argument instead of the instance. staticmethod: A method that does not receive the implicit ar...
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LINQ Select Distinct with Anonymous Types

...on of objects. The exact type isn't important. From it I want to extract all the unique pairs of a pair of particular properties, thusly: ...
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Real world example about how to use property feature in python?

...ef protein_folding_angle(self): # number crunching, remote server calls, etc # all results in an angle set in 'some_angle' # It could also reference a cache, remote or otherwise, # that holds the latest value for this angle return some_angle >>> f = ...
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How to find the JVM version from a program?

... That JMX call returns the equivalent of "java.vm.version", not "java.version". These are usually (but not necessarily) the same. – Alex Miller Jun 21 '13 at 15:54 ...
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Installing Python packages from local file system folder to virtualenv with pip

Is it possible to install packages using pip from the local filesystem? 10 Answers 10 ...
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How do I get Pyflakes to ignore a statement?

... # noqa only ignores certain warnings/errors, but not all -- in order to deal with this, a workaround involves installing/using the package at pypi.python.org/pypi/flake8-respect-noqa – Mark Jan 18 '16 at 0:15 ...