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Best way to make Java's modulus behave like it should with negative numbers?
... of the negative values of a, since (a % b) is a negative value between -b and 0, (a % b + b) is necessarily lower than b and positive. The last modulo is there in case a was positive to begin with, since if a is positive (a % b + b) would become larger than b. Therefore, (a % b + b) % b turns it in...
What is the difference between __dirname and ./ in node.js?
When programming in Node.js and referencing files that are located somewhere in relation to your current directory, is there any reason to use the __dirname variable instead of just a regular ./ ? I've been using ./ thus far in my code and just discovered the existence of __dirname , and essenti...
Redirect Windows cmd stdout and stderr to a single file
I'm trying to redirect all output (stdout + stderr) of a DOS command to a single file:
7 Answers
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How do I delete specific lines in Notepad++?
I'm cleaning up some code files (C#) and want to remove the regions. And I would like to delete all the lines that have the string '#region'. That's just an example, and I can think of several more uses, but is that even possible?
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List all tables in postgresql information_schema
...asterisk).(asterisk) thing, sorry. I just ran the select query in postgres and it listed information about all the tables in it. Try running the select statement (on your blank db) and see what it returns.
– RodeoClown
Feb 16 '10 at 22:15
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What is the X-REQUEST-ID http header?
... this subject, read various articles about this header, its use in Heroku, and projects based on Django.
4 Answers
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Rolling median algorithm in C
...ial window of values, then perform a binary search to insert the new value and remove the existing one at each iteration.
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What does an exclamation mark mean in the Swift language?
...ome/None), not the value itself (T). So john isn't an instance of Person, and it doesn't have an apartment member:
john.apartment
// 'Person?' does not have a member named 'apartment'
The actual Person value can be unwrapped in various ways:
"forced unwrapping": john! (gives the Person value i...
Why doesn't logcat show anything in my Android?
Why doesn't logcat show anything in my Android (while developing apps with Eclipse)?
27 Answers
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How do I 'git diff' on a certain directory?
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Provide a path (myfolder in this case) and just run:
git diff myfolder/
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