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Can I call memcpy() and memmove() with “number of bytes” set to zero?

... 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 such a call shall still have valid values, as described in 7.1.4. On such a call...
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Is there an equivalent to CTRL+C in IPython Notebook in Firefox to break cells that are running?

...errupt the entire iPython Notebook server. This will stop iPython Notebook alltogether, which means it won't be possible to restart or save your work, so this is obviously not a great solution (you need to hit CTRL+C twice because it's a safety feature so that people don't do it by accident). In cas...
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Styling multi-line conditions in 'if' statements? [closed]

... after a \ it might not show in your editor, and the code becomes syntactically incorrect. – Eric O Lebigot Jan 14 '11 at 10:26 ...
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ssl_error_rx_record_too_long and Apache SSL [closed]

...default_:443> Error code: ssl_error_rx_record_too_long This usually means the implementation of SSL on your server is not correct. The error is usually caused by a server side problem which the server administrator will need to investigate. Below are some things we recommend trying....
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How do I “source” something in my .vimrc file?

... Sourcing a file is 'executing' it. Essentially, each line of the file is considered a command. Sourcing it is the same as typing each command in order. You source with the command :source (usually shortened to :so). So if you source myStuff.vim :so myStuff.vim an...
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Understanding the main method of python [duplicate]

...n other programs, and also include code to evaluate only when the file is called as a standalone script. It's important to understand that all of the code above the if __name__ line is being executed, evaluated, in both cases. It's evaluated by the interpreter when the file is imported or when it'...
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How to make rounded percentages add up to 100%

...55310199789695, 8.780231335436383, 8.04416403785489, 0]. The last one logically returns -1. I thought of the following solution really quickly but there's probably something better: jsfiddle.net/0o75bw43/1 – Cruclax Aug 5 '16 at 16:39 ...
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Convert PDF to clean SVG? [closed]

...t they often lose the font data, but don't seem to approximate a good, installed font. How does PDF display it if SVG can't? – DanRedux Apr 23 '12 at 21:30 ...
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What's the (hidden) cost of Scala's lazy val?

...ng [18] 29 putfield blevins.example.Something.foo : java.lang.String [20] 32 aload_0 [this] 33 aload_0 [this] 34 getfield blevins.example.Something.bitmap$0 : int [15] 37 iconst_1 38 ior 39 putfield blevins.example.Something.bitmap$0 : int [15] 42 getstatic scala.runtime.BoxedUnit.UNIT : sca...
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Symfony 2: How do I check if a user is not logged in inside a template?

...any user is logged in. {% if app.user %} # user is logged in (any and all users, regardless of ROLE_*) {% elseif not app.user %} # user is not logged in (note the `not` in the `elseif` statement) {% endif %} Checking authentication status You can use the is_granted() method to check fo...