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How is a CRC32 checksum calculated?
... x^5 + x^4 + 3*x^3 + x^2 + x^1 + x^0 (or that original number we had)
I know this is a leap of faith but this is beyond my capability as a line-programmer. If you are a hard-core CS-student or engineer I challenge to break this down. Everyone will benefit from this analysis.
So to work out a full...
Is there a standard for storing normalized phone numbers in a database?
...e number into the following components
C Country code 1-10 digits (right now 4 or less, but that may change)
A Area code (Province/state/region) code 0-10 digits (may actually want a region field and an area field separately, rather than one area code)
E Exchange (prefix, or switch) code 0-10 dig...
Can you change what a symlink points to after it is created?
... alternately.
Editor's note: This is how Capistrano has done it for years now, ever since ~2.15. See this pull request.
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What is the rationale for all comparisons returning false for IEEE754 NaN values?
...etic type that satisfies all of the properties of real arithmetic that we know and love. The 754 committee has to decide to bend or break some of them. This is guided by some pretty simple principles:
When we can, we match the behavior of real arithmetic.
When we can't, we try to make the violat...
How to use GNU Make on Windows?
...targets specified and no makefile found. Stop.
Which means it's working now!
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Task not serializable: java.io.NotSerializableException when calling function outside closure only o
...e Serialisable interface, so this is not what's causing your task to fail. Now this doesn't mean that you can serialise an RDD with Spark and avoid NotSerializableException
Spark is a distributed computing engine and its main abstraction is a resilient distributed dataset (RDD), which can be viewed...
Fastest way to serialize and deserialize .NET objects
... G'day Marc, love the protocol-buffers work you've done and I know this post is almost 5yrs old but the netserializer quoted in an answer here (Binoj) has metrics indicating your implementation isn't the fastest. Is that a fair statement/advertisement or is there a trade off? thanks
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Why is enum class preferred over plain enum?
...color == Card::red_card) line, 4 lines later than the comment (which I see now applies to the first half of the block.) 2 lines of the block gives the bad examples. The first 3 lines are not a problem. The "entire block is why plain enums are bad" threw me as I thought you meant something was wro...
input type=“submit” Vs button tag are they interchangeable?
...lity to adopt to the new spec once it is officialized. HTML5, as of right now, has been official for over one year now, and has been shown in many cases to boost SEO.
&ast; With the exception of <button type="button"> which by default has no specified behaviour.
In summary, I highly di...
How to watch for array changes?
... a catch-all sounds appealing, just replace myArray with Array.prototype.
Now, that's just one method and there are lots of ways to change array content. We probably need something more comprehensive...
2. Create a custom observable array
Rather than overriding methods, you could create your own ...