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Java HashMap performance optimization / alternative
...d where a ={1, 0}, all else being equal.
Utilise what Java gives you for free.
public int hashCode() {
return 31 * Arrays.hashCode(a) + Arrays.hashCode(b);
}
I'm pretty sure this has much less chance of clashing than your existing hashCode method, although it depends on the exact nature of ...
How much does it cost to develop an iPhone application? [closed]
...t: ~$100,000, and that's insanely cheap!
And they will give this away for free so clients will buy from their store from their iPhones.
For your app, Peter, if you have the servers and the APIs and the design, I'd guess at $30,000 to $60,000 depending on complexity. If you do not have the design,...
Haskell: Lists, Arrays, Vectors, Sequences
...t, but tend to run on the order of 20 times slower than C strings, so feel free to use Data.Text or the very fast Data.ByteString. I'm sure there are other sequence oriented libraries I'm not thinking of right now.
Conclusion
90+% of the time I need a sequential collection in Haskell lists are t...
How to decide when to use Node.js?
...me.
Node.js was easy to configure.
There are lots of modules available for free. For example, I found a Node.js module for PayPal.
In this case, Node.js was an awesome choice.
share
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How to create a memory leak in Java?
...guage which naturally leaks to memory leak if you don't forget to manually free the memory you allocated". How would that be for intellectual dishonesty? Anyway, I'm tired: you can have the last word.
– SyntaxT3rr0r
Jul 22 '11 at 12:56
...
ReSharper warns: “Static field in generic type”
...In the rare cases when you do need the 'specialized' static fields,
feel free to suppress the warning.
If you need to have a static field shared between instances with
different generic arguments, define a non-generic base class to
store your static members, then set your generic type to ...
MPICH vs OpenMPI
...ind that some MPI-3 features are buggy on some platforms (MPICH is not bug-free, of course, but bugs in MPI-3 features have been far less common).
Historically, Open-MPI has not had holistic support for MPI_THREAD_MULTIPLE, which is critical for some applications. It might be supported on some pla...
Efficiency of purely functional programming
... can keep it in a cage, e.g. by locking it up in an externally-side-effect-free function.
– Robin Green
Apr 12 '12 at 20:24
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show 10 more c...
Should I use SVN or Git? [closed]
...
Perforce = non free. Also, Perforce is not available for all platforms.
– WhyNotHugo
Sep 17 '10 at 14:48
4
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How do I connect to this localhost from another computer on the same network?
... local hostname on a mobile device: Using SquidMan as a proxy. It's a 100% free solution. Some people can also use Charles as a proxy server but it's 50$.
On Linux, you can adapt the Mac OS way above by using Squid as a proxy server.
On Windows, you can do that using Fiddler. The solution is descr...