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Mapping two integers to one, in a unique and deterministic way
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Cantor pairing function is really one of the better ones out there considering its simple, fast and space efficient, but there is something even better published at Wolfram by Matthew Szudzik, here. The limitation of Cantor pairing function (relatively) is that the range of encoded...
When should I use perror(“…”) and fprintf(stderr, “…”)?
...tom error messages. By printing to stderr, you avoid your error reporting output being mixed with "normal" output that should be going to stdout.
Keep in mind that fprintf(stderr, "%s\n", strerror(errno)) is similar to perror(NULL) since a call to strerror(errno) will generate the printed string v...
What does the C++ standard state the size of int, long type to be?
...g long and unsigned long long are at least 64 bits
No guarantee is made about the size of float or double except that double provides at least as much precision as float.
The actual implementation-specific ranges can be found in <limits.h> header in C, or <climits> in C++ (or even bette...
Set cURL to use local virtual hosts
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Posted more data about the results of doing this below.
– Xeoncross
Aug 11 '10 at 15:44
1
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Spring Test & Security: How to mock authentication?
I was trying to figure out how to unit test if my the URLs of my controllers are properly secured. Just in case someone changes things around and accidentally removes security settings.
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How to git-svn clone the last n revisions from a Subversion repository?
...find myself using the following often to get a limited number of revisions out of our huge subversion tree (we're soon reaching svn revision 35000).
# checkout a specific revision
git svn clone -r N svn://some/repo/branch/some-branch
# enter it and get all commits since revision 'N'
cd some-branch
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fatal: Not a valid object name: 'master'
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you can use git checkout -b <branchname> to change HEAD - you don't need to edit the file.
– Superfly Jon
Oct 31 '13 at 14:56
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Unauthorised webapi call returning login page rather than 401
... appears things have drastically changed with MVC 5 as Brock Allen pointed out in his article. I guess the OWIN pipeline takes over and introduces some new behavior. Now when the user is not authorized a status of 200 is returned with the following information in the HTTP header.
X-Responded-JSO...
What is the purpose of Verifiable() in Moq?
...on makes it clear that this was the goal and the only problem was figuring out why it wasn't working, but as @Liam prodded, the answer should really touch on this too:- The key use cases as far as I can see are:
maintaining DRYness between a mock.Setup() and mock.Verify
allowing one to disconnect ...
How do you list the active minor modes in emacs?
...he minor mode commands is stored in the variable minor-mode-list. Finding out whether they're active or not is usually done by checking the variable of the same name. So you can do something like this:
(defun which-active-modes ()
"Give a message of which minor modes are enabled in the current ...