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What platforms have something other than 8-bit char?
...hen, someone on SO points out that char (aka 'byte') isn't necessarily 8 bits .
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Can someone explain the traverse function in Haskell?
...o grok the traverse function from Data.Traversable . I am unable to see its point. Since I come from an imperative background, can someone please explain it to me in terms of an imperative loop? Pseudo-code would be much appreciated. Thanks.
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Deleting Objects in JavaScript
I'm a bit confused with JavaScript's delete operator. Take the following piece of code:
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AES vs Blowfish for file encryption
... predecessor to Twofish. Twofish was Bruce Schneier's entry into the competition that produced AES. It was judged as inferior to an entry named Rijndael, which was what became AES.
Interesting aside: at one point in the competition, all the entrants were asked to give their opinion of how the ciph...
Why does Ruby have both private and protected methods?
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protected methods can be called by any instance of the defining class or its subclasses.
private methods can be called only from within the calling object. You cannot access another instance's private methods directly.
Here is a quick practical example:
def compare_to(x)
self.some_method <...
How to clone ArrayList and also clone its contents?
How can I clone an ArrayList and also clone its items in Java?
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Centering a view in its superview using Visual Format Language
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Currently, no, it doesn't look like it is possible to center a view in the superview using only VFL. It is, however, not that difficult to do it using a single VFL string and a single extra constraint (per axis):
VFL: "|-(>=20)-[view]-(...
When can I use a forward declaration?
I am looking for the definition of when I am allowed to do forward declaration of a class in another class's header file:
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What is “assert” in JavaScript?
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There is no assert in JavaScript (yet; there's talk of adding one, but it's at an early stage). Perhaps you're using some library that provides one. The usual meaning is to throw an error if the expression passed into the function is false; this is part of the general concept of assertion checki...
How to install PyQt4 on Windows using pip?
I'm using Python 3.4 on Windows. When I run a script, it complains
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