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When are you truly forced to use UUID as part of the design?
...5 and Version 3 UUIDs use the SHA1 and MD5 hash functions respectively, to combine a namespace with a piece of already unique data to generate a UUID. This will, for example, allow you to produce a UUID from a URL. Collisions here are only possible if the underlying hash function also has a collisio...
C++ lambda with captures as a function pointer
...ion has no room for a state." -> How the hell can languages like Java accomplish this then? Well, of course, because that single, global function is created at runtime and embeds the state (or rather the reference to it) in its own code. That is the whole point - there should not be a single, glo...
Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
... the reason. To extend this result: Intel's Embree project (software.intel.com/en-us/articles/…), uses vectorization for its mathematics. You can download the source at that link and look at how they do their 3/4 D Vectors. Their vector normalization uses rsqrt followed by an iteration of newton-r...
How are parameters sent in an HTTP POST request?
...tipart/form-data encoding instead, which has a different format. It's more complicated, but you usually don't need to care what it looks like, so I won't show an example, but it can be good to know that it exists.
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How to get device make and model on iOS?
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EITHER try this library: http://github.com/erica/uidevice-extension/ (by Erica Sadun). (The library is 7-8 years old, and hence is obsolete)
(Sample Code):
[[UIDevice currentDevice] platformType] // ex: UIDevice4GiPhone
[[UIDevice currentDevice] platfo...
Java lib or app to convert CSV to XML file? [closed]
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typedef struct vs struct definitions [duplicate]
... using typedef . It seems to me like there's really no difference, they accomplish the same goal.
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What are the differences between WCF and ASMX web services?
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Keith Elder nicely compares ASMX to WCF here. Check it out.
Another comparison of ASMX and WCF can be found here - I don't 100% agree with all the points there, but it might give you an idea.
WCF is basically "ASMX on stereoids" - it can be a...
Add days to JavaScript Date
...ally incrementing the month if necessary. For example:
8/31 + 1 day will become 9/1.
The problem with using setDate directly is that it's a mutator and that sort of thing is best avoided. ECMA saw fit to treat Date as a mutable class rather than an immutable structure.
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How can I change Mac OS's default Java VM returned from /usr/libexec/java_home
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I think JAVA_HOME is the best you can do. The command-line tools like java and javac will respect that environment variable, you can use /usr/libexec/java_home -v '1.7*' to give you a suitable value to put into JAVA_HOME in order to make command line tools use Java 7.
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