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What exactly is an HTTP Entity?

...majority of an HTTP request or response, consisting of some of the headers and the body, if present. It seems to be the entire request or response without the request or status line (although only certain header fields are considered part of the entity). To illustrate; here's a request: POST /foo...
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Understanding typedefs for function pointers in C

... took me a while to get around to such a definition while trying to understand a numerical algorithm written in C a while ago. So, could you share your tips and thoughts on how to write good typedefs for pointers to functions (Do's and Do not's), as to why are they useful and how to understand other...
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Google Maps V3 - How to calculate the zoom level for a given bounds

...e willing to change the size of the map div, you have to choose which size and corresponding zoom level you change to (roughly speaking, do you make it larger or smaller than it currently is?). If you really need to calculate the zoom, rather than store it, this should do the trick: The Mercator p...
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C/C++ Struct vs Class

... In C++, structs and classes are pretty much the same; the only difference is that where access modifiers (for member variables, methods, and base classes) in classes default to private, access modifiers in structs default to public. However...
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Getting current date and time in JavaScript

I have a script that prints the current date and time in JavaScript, but the DATE is always wrong. Here is the code: 27 A...
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Is gcc's __attribute__((packed)) / #pragma pack unsafe?

...6 systems won't reveal the problem. (On the x86, misaligned accesses are handled in hardware; if you dereference an int* pointer that points to an odd address, it will be a little slower than if it were properly aligned, but you'll get the correct result.) On some other systems, such as SPARC, att...
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Twitter API returns error 215, Bad Authentication Data

... to obtain following keys you need to sign up with https://dev.twitter.com and create application. <?php $token = 'YOUR_TOKEN'; $token_secret = 'YOUR_TOKEN_SECRET'; $consumer_key = 'CONSUMER_KEY'; $consumer_secret = 'CONSUMER_SECRET'; $host = 'api.twitter.com'; $method = 'GET'; $path = '/1.1/st...
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Or versus OrElse

What's the difference between or and OrElse ? 8 Answers 8 ...
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Why use pointers? [closed]

...tionality, missing data types or for pure perfomance. More below... When and where should I use pointers? Short answer here is: Where you cannot use anything else. In C you don't have any support for complex datatypes such as a string. There are also no way of passing a variable "by reference" ...
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What are 'get' and 'set' in Swift?

I'm learning Swift and I'm reading The Swift Programming Language from Apple, I have no Objective C background (only PHP, JS, and other but no Obj C) ...