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Circle line-segment collision detection algorithm?
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143
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using extern template (C++11)
...itten by it. Luckily Johannes' comment had a number of up votes and I paid more attention to it this time around. I can only assume that the vast majority of voters on this question did not actually implement these types of templates in multiple compilation units (like I did today)... At least for ...
Git stash uncached: how to put away all unstaged changes?
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You can use git stash save --keep-index when you want to make two or
more commits out of the changes in the work tree, and you want to test
each change before committing:
# ... hack hack hack ...
$ git add --patch foo # add just first part to the index
$ git stash save --keep-ind...
Create ArrayList from array
...g it into a new ArrayList object will fix the size of the list. One of the more common reasons to use an ArrayList is to be able to dynamically change its size, and your suggestion would prevent this.
– Code Jockey
Sep 26 '11 at 19:04
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How to set limits for axes in ggplot2 R plots?
...removes data points outside of the given range:
+ xlim(-5000, 5000)
For more information check the description of coord_cartesian.
The RStudio cheatsheet for ggplot2 makes this quite clear visually. Here is a small section of that cheatsheet:
Distributed under CC BY.
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Internal Error 500 Apache, but nothing in the logs?
...he default error log as opposed to the scripts error logs usually has the (more) specific error. often it will be permissions denied or even an interpreter that can't be found.
This means the fault almost always lies with your script. e.g you uploaded a perl script but didnt give it execute permiss...
How to modify a global variable within a function in bash?
...$?
The only bad sideffects are:
It needs a modern bash.
It forks quite more often.
It needs the annotation (named after your function, with an added _)
It sacrifices file descriptor 3.
You can change it to another FD if you need that.
In _capture just replace all occurances of 3 with another...
Why is TypedReference behind the scenes? It's so fast and safe… almost magical!
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I need to store postal codes in a database. How big should the column be?
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Skimming through Wikipedia's Postal Codes page, 32 characters should be more than enough. I would say even 16 characters is good.
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