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How does the ARM architecture differ from x86? [closed]

...instructions operate only on registers with a few instructions for loading and saving data from / to memory while x86 can operate directly on memory as well. Up until v8 ARM was a native 32 bit architecture, favoring four byte operations over others. So ARM is a simpler architecture, leading to sma...
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Quickly create a large file on a Linux system

...her answers is a good solution, but it is slow for this purpose. In Linux (and other POSIX systems), we have fallocate, which uses the desired space without having to actually writing to it, works with most modern disk based file systems, very fast: For example: fallocate -l 10G gentoo_root.img ...
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I want to get Year, Month, Day, etc from Java Date to compare with Gregorian Calendar date in Java.

....add(Calendar.DAY_OF_MONTH, -48) to do day arithmetic on Calendar objects. And you can compare two Calendar objects using cal.compareTo(anotherCal). – Florent Guillaume Feb 27 '12 at 23:55 ...
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Difference between Select and ConvertAll in C#

... Select is a LINQ extension method and works on all IEnumerable<T> objects whereas ConvertAll is implemented only by List<T>. The ConvertAll method exists since .NET 2.0 whereas LINQ was introduced with 3.5. You should favor Select over ConvertAll...
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Finding a branch point with Git?

I have a repository with branches master and A and lots of merge activity between the two. How can I find the commit in my repository when branch A was created based on master? ...
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How to combine multiple conditions to subset a data-frame using “OR”?

... the following syntax before with lot of success when I wanted to use the "AND" condition. 3 Answers ...
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Java packages com and org

What are the meaning of the packages org and com in Java? 4 Answers 4 ...
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Difference between HEAD and master

What is the difference between the HEAD and master in Git? 3 Answers 3 ...
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Why does range(start, end) not include end?

... You explain that range(x) should start with 0 and x will be the "length of the range". OK. But you didn't explain why range(x,y) should start with x and end with y-1. If the programmer wants a for-loop with i ranging from 1 to 3, he has to explicitly add 1. Is this reall...
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Comparing Haskell's Snap and Yesod web frameworks

The two Haskell web frameworks in the news recently are Yesod (at 0.8) and Snap (at 0.4). 4 Answers ...