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How to detect the physical connected state of a network cable/connector?
... in
/sys/class/net/
I experimented with mine:
Wire Plugged in:
eth0/carrier:1
eth0/operstate:unknown
Wire Removed:
eth0/carrier:0
eth0/operstate:down
Wire Plugged in Again:
eth0/carrier:1
eth0/operstate:up
Side Trick: harvesting all properties at once the easy way:
grep "" eth0/*...
Rails: How can I set default values in ActiveRecord?
...n which you find the model. If you just want to initialize some numbers to 0 then this is not what you want.
Defining defaults in your migration also works part of the time... As has already been mentioned this will not work when you just call Model.new.
Overriding initialize can work, but don't for...
ListView inside ScrollView is not scrolling on Android
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answered Jun 2 '11 at 6:40
MichaelMichael
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Reading a file line by line in Go
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edited Feb 7 at 20:56
Samuel Hawksby-Robinson
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How do I get the path of the Python script I am running in? [duplicate]
...path of a the Python script I am running in? I was doing dirname(sys.argv[0]) , however on Mac I only get the filename - not the full path as I do on Windows.
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How to calculate a time difference in C++
...Diego Sevilla
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answered Apr 8 '09 at 0:16
baydabayda
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Xcode 5 & Asset Catalog: How to reference the LaunchImage?
...he iPad images with no status bar):
LaunchImage-568h@2x.png
LaunchImage-700-568h@2x.png
LaunchImage-700-Landscape@2x~ipad.png
LaunchImage-700-Landscape~ipad.png
LaunchImage-700-Portrait@2x~ipad.png
LaunchImage-700-Portrait~ipad.png
LaunchImage-700@2x.png
LaunchImage-Landscape@2x~ipad.png
LaunchIma...
With ng-bind-html-unsafe removed, how do I inject HTML?
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10 Answers
10
Active
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Why are preprocessor macros evil and what are the alternatives?
...e" in macros, say we have this:
#define safe_divide(res, x, y) if (y != 0) res = x/y;
and then
if (something) safe_divide(b, a, x);
else printf("Something is not set...");
It actually becomes completely the wrong thing....
Replacement: real functions.
3) Macros have no namespace
If we ...
How many bits or bytes are there in a character? [closed]
... in UTF-16 - 16 bits.
The additional (non-ASCII) characters in ISO-8895-1 (0xA0-0xFF) would take 16 bits in UTF-8 and UTF-16.
That would mean that there are between 0.03125 and 0.125 characters in a bit.
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