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In Python, when should I use a function instead of a method?

...ule is this - is the operation performed on the object or by the object? if it is done by the object, it should be a member operation. If it could apply to other things too, or is done by something else to the object then it should be a function (or perhaps a member of something else). When intro...
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How to forward declare a template class in namespace std?

... std::less on a user-defined type. Someone else can cite the relevant text if necessary. Just #include <list> and don't worry about it. Oh, incidentally, any name containing double-underscores is reserved for use by the implementation, so you should use something like TEST_H instead of __TES...
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Can I call memcpy() and memmove() with “number of bytes” set to zero?

...he C99 standard (7.21.1/2): Where an argument declared as size_t n specifies the length of the array for a function, n can have the value zero on a call to that function. Unless explicitly stated otherwise in the description of a particular function in this subclause, pointer arguments on ...
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What is a regular expression for a MAC Address?

... Note that if they are being stored with lower case hexadecimal letters it will not match change the group to [0-9A-Fa-f] to catch both cases – Scott Chamberlain Nov 23 '10 at 20:24 ...
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`require': no such file to load — mkmf (LoadError)

... This is also required for aws-sdk now that SOAP is deprecated for AWS. A worry if stakeholders object to anything -dev on a production build. (SDK's don't thrill them either). – mckenzm Dec 20 '14 at 20:47 ...
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Android Use Done button on Keyboard to click button

...ean onEditorAction(TextView v, int actionId, KeyEvent event) { if ((event != null && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER)) || (actionId == EditorInfo.IME_ACTION_DONE)) { Log.i(TAG,"Enter pressed"); } return false; } ...
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Way to go from recursion to iteration

...s still depth-first search. But if you change the whole thing into a queue now you are doing breadth-first rather than depth-first traversal. – pete Oct 31 '13 at 20:33 1 ...
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Create a CSV File for a user in PHP

...optionally encode CSV fields: function maybeEncodeCSVField($string) { if(strpos($string, ',') !== false || strpos($string, '"') !== false || strpos($string, "\n") !== false) { $string = '"' . str_replace('"', '""', $string) . '"'; } return $string; } ...
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Are tuples more efficient than lists in Python?

Is there any performance difference between tuples and lists when it comes to instantiation and retrieval of elements? 8 A...
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What is the canonical way to determine commandline vs. http execution of a PHP script?

I have a PHP script that needs to determine if it's been executed via the command-line or via HTTP, primarily for output-formatting purposes. What's the canonical way of doing this? I had thought it was to inspect SERVER['argc'] , but it turns out this is populated, even when using the 'Apache 2.0 ...