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Modulo operator with negative values [duplicate]
...fined. For integral operands the / operator yields the algebraic quotient with any fractional part discarded; if the quotient a/b is
representable in the type of the result, (a/b)*b + a%b is equal to a.
The rest is basic math:
(-7/3) => -2
-2 * 3 => -6
so a%b => -1
(7/-3) => -2
-2 ...
List comprehension: Returning two (or more) items for each item
Is it possible to return 2 (or more) items for each item in a list comprehension?
6 Answers
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Programmatically creating Markdown tables in R with KnitR
I am just starting to learn about KnitR and the use of Markdown in generating R documents and reports. This looks to be perfect for a lot of the day to day reporting that I have to do with my job. However, one thing that I'm not seeing is an easy way to print data frames and tables using Markdown fo...
C/C++ check if one bit is set in, i.e. int variable
Is there such a way to check if bit 3 in temp is 1 or 0 without bit shifting and masking.
21 Answers
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Calendar Recurring/Repeating Events - Best Storage Method
...at_start 1299132000
2 1 repeat_interval_1 432000
With repeat_start being a date with no time as a unix timestamp, and repeat_interval an amount in seconds between intervals (432000 is 5 days).
repeat_interval_1 goes with repeat_start of the ID 1. So if I have an event that...
Multiple commands in gdb separated by some sort of delimiter ';'?
...t; end
And then just type:
(gdb) fn
You can put this in your ~/.gdbinit file as well so it is always available.
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How can I generate a diff for a single file between two branches in github
...ill show the differences between two versions, which are actually tags in github. I then want to send this diff to someone via email so a github URL for the diff would be ideal. The github compare view will allow me to do this for all changed files, but that's no good as there are thousands of files...
how to implement a pop up dialog box in iOS
...oking for. Here's an example:
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"No network connection"
message:@"You must be connected to the internet to use this app."
delegate:nil
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Running a command as Administrator using PowerShell?
... user of a system and you can just right click say, a batch script and run it as Administrator without entering the administrator password?
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Python threading.timer - repeat function every 'n' seconds
...t too knowledgeable of how Python threads work and am having difficulties with the python timer.
12 Answers
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