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Is there a standard sign function (signum, sgn) in C/C++?

...u missed the C++ tag. This answer is very much valid and doesn't deserve a down-vote. Moreover, I wouldn't use copysign for integral x even if I had it available. – avakar Dec 15 '09 at 8:39 ...
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What is the difference between require_relative and require in Ruby?

... some cases if you are already 'deep' within a directory tree then "up and down" another directory tree branch may be necessary. More simply perhaps, don't use require_relative for files outside of this repository (assuming you are using git which is largely a de-facto standard at this point, late ...
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Is MD5 still good enough to uniquely identify files?

...em is their business. Also consider that Bruce Schneier recommends writing down your password; not everything needs to be stored at Fort Knox. Some things will keep just fine under the flower pot. – Marcelo Cantos Oct 27 '10 at 11:02 ...
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uint8_t vs unsigned char

...y about performance and argue that using these packed structures will slow down your system. It is true that, behind the scenes, the compiler adds code to access the unaligned data members. You can see that by looking at the assembly code in your IDE. But since packed structures are most useful for...
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Facebook share link without JavaScript

... You could use <a href="https://www.facebook.com/sharer/sharer.php?u=#url" target="_blank">Share</a> Currently there is no sharing option without passing current url as a parameter. You can use an indirect way to achieve this. Create a ...
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Why is quicksort better than mergesort?

...ance and quicksort is... quick =) All sort algorithms have their ups and downs. See Wikipedia article for sorting algorithms for a good overview. share | improve this answer | ...
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When is the finalize() method called in Java?

...y a quite different question and should be asked separately. There are shutdown hooks, but they are not guaranteed if the JVM shuts down unexpectedly (a.k.a. crashes). But their guarantees are significantly stronger than those for finalizers (and they are safer as well). – Joac...
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Decorators with parameters?

...ion. But note: I'm not advocating for any change here, Python is too far down the road for that and we can see how breaking changes have worked out.. – Michel Müller Feb 19 '15 at 1:07 ...
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Get user profile picture by Id

...a large, square image (since the square default is small), you have to use https://graph.facebook.com/{facebookId}/picture?type=large&width=720&height=720. – sudo Jul 28 '14 at 17:29 ...
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Why am I getting a NoClassDefFoundError in Java?

...anks! Jared's answer with 400+ upvotes is way below! One answer with -4 up(down?)votes is way above it. There is something fishy about SO's answer ordering logic. – Saurabh Patil Jul 31 '17 at 14:00 ...