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How to implement the factory method pattern in C++ correctly

...ere are cases when object construction is a task complex enough to justify its extraction to another class. I believe this point is incorrect. The complexity doesn't really matter. The relevance is what does. If an object can be constructed in one step (not like in the builder pattern), the ...
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Python: What OS am I running on?

...indows: Windows See: platform — Access to underlying platform’s identifying data share | improve this answer | follow | ...
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How do I pass parameters into a PHP script through a webpage?

... $argument1 = $_GET['argument1']; $argument2 = $_GET['argument2']; ?> If you want the script to run regardless of where you call it from (command line or from the browser) you'll want something like the following: EDIT: as pointed out by Cthulhu in the comments, the most direct way to test whi...
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git ignore vim temporary files

... *.swo This will ignore all the vim temporary files in a single project If you want to do it globally, you can create a .gitignore file in your home (you can give it other name or location), and use the following command: git config --global core.excludesfile ~/.gitignore Then you just need to...
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Foreign Key naming scheme

...ing started working with foreign keys for the first time and I'm wondering if there's a standard naming scheme to use for them? ...
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Why isn't ProjectName-Prefix.pch created automatically in Xcode 6?

...ting macros unless there is no other way (such as when you need __FILE__). If you do need macros, put them in a header and include it. The prefix header was necessary for things that are huge and used by nearly everything in the whole system (like Foundation.h). If you have something that huge and ...
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ImportError: numpy.core.multiarray failed to import

...ved the faulty numpy version and raised the correct numpy version back to life... – roy650 Jan 30 '17 at 19:48 ...
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Algorithm to detect corners of paper sheet in photo

...ine outputted from the hough transform it would give a rho and theta pair. If these values were within, say 5% of a pair of values in the table, they were discarded, if they were outside that 5%, a new entry was added to the table. You can then do analysis of parallel lines or distance between line...
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Check if a folder exist in a directory and create them using C#

How can I check if directory C:/ contains a folder named MP_Upload , and if it does not exist, create the folder automatically? ...
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When and why should I use a namedtuple instead of a dictionary? [duplicate]

...n -- their key-equivalents, "field names", have to be strings. Basically, if you were going to create a bunch of instances of a class like: class Container: def __init__(self, name, date, foo, bar): self.name = name self.date = date self.foo = foo self.bar = bar...