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Setting variable to NULL after free

... @Paul: In the specific case, the declaration could read int *nPtr=NULL;. Now, I would agree that this would be redundant, with a malloc following right in the next line. However, if there is code between the declaration and the first initialization, somebody might start using the variable even tho...
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Convert an image (selected by path) to base64 string

... @facepalm42 RawFormat isn't an image format specifier; it's a property of the image object, which returns which format the image was in when it was read from file, meaning in this case, it'd return the gif format. So it changes nothing, except that instead of the actual or...
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Can Flask have optional URL parameters?

...uess that you want to write a single route and mark username as optional? If that's the case, I don't think it's possible. share | improve this answer | follow ...
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Encode String to UTF-8

... String objects in Java use the UTF-16 encoding that can't be modified. The only thing that can have a different encoding is a byte[]. So if you need UTF-8 data, then you need a byte[]. If you have a String that contains unexpected data, then the problem is at some earlier place that inco...
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.gitignore for Visual Studio Projects and Solutions

...d will there fore ignore anything you have under neath it. It does not specifically target the Visual Studio "Publishing" output. It will ignore it, but also other things. – Rex Whitten Oct 20 '14 at 14:43 ...
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In-memory size of a Python structure

... """Recursively finds size of objects""" size = sys.getsizeof(obj) if seen is None: seen = set() obj_id = id(obj) if obj_id in seen: return 0 # Important mark as seen *before* entering recursion to gracefully handle # self-referential objects seen.add(obj_...
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endsWith in JavaScript

... with ES6 adding endsWith, the point is moot. :-) ORIGINAL ANSWER: I know this is a year old question... but I need this too and I need it to work cross-browser so... combining everyone's answer and comments and simplifying it a bit: String.prototype.endsWith = function(suffix) { return th...
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Unable to import a module that is definitely installed

... maybe 2? I just don't know why it would install in the wrong place for this one library, where most others are fine. – roy Jan 12 '13 at 17:59 ...
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What is the effect of extern “C” in C++?

...pe information to the name used for linkage. Just so you know, you can specify extern "C" linkage to each individual declaration/definition explicitly or use a block to group a sequence of declarations/definitions to have a certain linkage: extern "C" void foo(int); extern "C" { void g(char); ...
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How to prepare a Unity project for git? [duplicate]

...ory. If you already created your empty git repo on-line (eg. github.com) now it's time to upload your code. Open a command prompt and follow the next steps: cd to/your/unity/project/folder git init git add * git commit -m "First commit" git remote add origin git@github.com:username/project.gi...