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g++ undefined reference to typeinfo

...ill contain null-pointer most likely). However, nobody prohibits you from calling this pure virtual function in a non-virtual manner, i.e. by using a fully-qualified name. In this case the linker will look for the body, and you will have to define the function. And yes, you can define a body for a p...
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Change string color with NSAttributedString?

... There is no need for using NSAttributedString. All you need is a simple label with the proper textColor. Plus this simple solution will work with all versions of iOS, not just iOS 6. But if you needlessly wish to use NSAttributedString, you can do something like this: ...
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Android SDK installation doesn't find JDK

I'm trying to install the Android SDK on my Windows 7 x64 System. 45 Answers 45 ...
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How to make a python, command-line program autocomplete arbitrary things NOT interpreter

...ts, i.e. --help, --verbose and --version. For your purposes, you'll essentially want to customise the values that are put into opts. Do have a look at the example on the linked page, it's all pretty straightforward. share ...
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Automatically import modules when entering the python or ipython interpreter

...ow do I set up the python or ipython interpreter so that numpy is automatically imported? 8 Answers ...
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Python: reload component Y imported with 'from X import Y'?

... verse (import this from interactive prompt to see the Zen of Python); and all the reasons why namespaces are a honking great idea (immediate local visual clues that the name's being looked up, ease of mocking/injecting in tests, ability to reload, ability for a module to change flexibly by redefini...
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Create a CSV File for a user in PHP

...ord2,record3\n"; die; etc Edit: Here's a snippet of code I use to optionally encode CSV fields: function maybeEncodeCSVField($string) { if(strpos($string, ',') !== false || strpos($string, '"') !== false || strpos($string, "\n") !== false) { $string = '"' . str_replace('"', '""', $st...
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How to convert array values to lowercase in PHP?

How can I convert all values in an array to lowercase in PHP? 10 Answers 10 ...
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Python: Why is functools.partial necessary?

...rticular) appear to like lambda just fine – I say "most", definitely not all, because Guido and I assuredly are among those "familiar with" (etc) yet think of lambda as an eyesore anomaly in Python... He was repentant of ever having accepted it into Python whereas planned to remove it from Python ...
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When do I use the PHP constant “PHP_EOL”?

... @Andre: How about anyone that writes apps to be installed, used and deployed by others? Are you suggesting these should all limit their "supported platforms" to *nix? – Cylindric Mar 4 '11 at 10:52 ...