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Multidimensional Array [][] vs [,] [duplicate]
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One is an array of arrays, and one is a 2d array. The former can be jagged, the latter is uniform.
That is, a double[][] can validly be:
double[][] x = new double[5][];
x[0] = new double[10];
x[1] = new double[5];
x[2] = new double[3];
x[3] = new d...
Comparing HTTP and FTP for transferring files
...TP used to be generally considered faster. FTP requires a control channel and state be maintained besides the TCP state but HTTP does not. There are 6 packet transfers before data starts transferring in FTP but only 4 in HTTP.
I think a properly tuned TCP layer would have more effect on speed tha...
Android ViewPager - Show preview of page on left and right
I'm using Android's ViewPager . What I want to do is to show a preview of the page on both the left and the right. I've seen where I can use a negative pageMargin to show a preview of the right side.
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AWS S3 copy files and folders between two buckets
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Copy between S3 Buckets
AWS (just recently) released a command line interface for copying between buckets.
http://aws.amazon.com/cli/
$ aws s3 sync s3://mybucket-src s3://mybucket-target --exclude *.tmp
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This will copy from one target bucket to another bucket.
See the documen...
Storing money in a decimal column - what precision and scale?
I'm using a decimal column to store money values on a database, and today I was wondering what precision and scale to use.
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SVN 405 Method Not Allowed
I accidentally deleted a folder in SVN and added it back immediately. I ran into an issue with this and my solution ended up removing the folder completely from my local copy as well as the server copy. I can do updates and commits without problems on any other file or folder, but if I try to create...
Why should we NOT use sys.setdefaultencoding(“utf-8”) in a py script?
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Also, the use of sys.setdefaultencoding() has always been discouraged, and it has become a no-op in py3k. The encoding of py3k is hard-wired to "utf-8" and changing it raises an error.
I suggest some pointers for reading:
http://blog.ianbicking.org/illusive-setdefaultencoding.html
http://nedb...
Git's famous “ERROR: Permission to .git denied to user”
I have tried googling and read through https://help.github.com/en/articles/connecting-to-github-with-ssh and various, various guides. I am unable to git push -u origin master or git push origin master ( the same command ).
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How to recover stashed uncommitted changes
I had some uncommitted changes in my development branch and I stashed them using git stash , but there were some changes which were very important among those stashed ones. Is there any way to get back those changes?
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Is it possible to print a variable's type in standard C++?
... update to a very old question: Print variable type in C++.
The accepted (and good) answer is to use typeid(a).name(), where a is a variable name.
Now in C++11 we have decltype(x), which can turn an expression into a type. And decltype() comes with its own set of very interesting rules. For exam...