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Effects of the extern keyword on C functions

... also contains the static function definition. It is ugly, and unnecessary 99.99% of the time (I could be off by an order or two or magnitude, overstating how often it is necessary). It usually occurs when people misunderstand that a header is only needed when other source files will use the inform...
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What does “static” mean in C?

... @Qix -- This was a new overloaded meaning given to static in C99. It is more than a decade and a half old, but not all compiler writers have embraced all of C99 features -- so C99 as a whole largely remains unknown. – Happy Green Kid Naps Dec 22 '...
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What's the difference between console.dir and console.log?

...ozilla.org/en-US/docs/Web/API/Console/log – loneshark99 Feb 20 '18 at 18:18 13 @loneshark99 actua...
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Should I use 'has_key()' or 'in' on Python dicts?

...but also in performance, e.g.: $ python -mtimeit -s'd=dict.fromkeys(range(99))' '12 in d' 10000000 loops, best of 3: 0.0983 usec per loop $ python -mtimeit -s'd=dict.fromkeys(range(99))' 'd.has_key(12)' 1000000 loops, best of 3: 0.21 usec per loop While the following observation is not always tru...
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C compile error: “Variable-sized object may not be initialized”

... I am assuming that you are using a C99 compiler (with support for dynamically sized arrays). The problem in your code is that at the time when the compilers sees your variable declaration it cannot know how many elements there are in the array (I am also assumi...
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Hidden features of C

... I think they are C99 or so. I haven't found a portable way to ensure these would be around. – akauppi Sep 25 '08 at 19:25 3...
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What is the printf format specifier for bool?

Since ANSI C99 there is _Bool or bool via stdbool.h . But is there also a printf format specifier for bool? 8 Answer...
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Matplotlib: “Unknown projection '3d'” error

...irst off, I think mplot3D worked a bit differently in matplotlib version 0.99 than it does in the current version of matplotlib. Which version are you using? (Try running: python -c 'import matplotlib; print matplotlib."__version__") I'm guessing you're running version 0.99, in which case you'll n...
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Why are regular expressions so controversial? [closed]

... 123 Making Regexes Maintainable A major advance toward demystify the patterns previously referred...