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How do I use extern to share variables between source files?
I know that global variables in C sometimes have the extern keyword. What is an extern variable? What is the declaration like? What is its scope?
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How to use concerns in Rails 4
The default Rails 4 project generator now creates the directory "concerns" under controllers and models. I have found some explanations about how to use routing concerns, but nothing about controllers or models.
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How to print a dictionary line by line in Python?
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I know this is old, but I thought it would be worth mentioning that this doesn't work if cars[x] is integers. It isn't what the OP was requesting, so I'm just saying it for anybody that stumbles upon this assuming it's a blanket...
“Pretty” Continuous Integration for Python
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Nose now includes the xunit plugin by default - nosetests --with-xunit
– dbr
Oct 13 '09 at 1:01
3
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/usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.15' not found
...tall
didn't catch this one. I dug around and found
gcc/trunk/x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6.0.15
I copied it in to /usr/lib and redirected libstdc++.so.6 to point to the new one, and now everything works.
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Making a Sass mixin with optional arguments
...-box-shadow: $args;
-moz-box-shadow: $args;
box-shadow: $args;
}
And now you can reuse your box-shadow in every class you want by passing all needed args:
.my-box-shadow {
@include box-shadow(2px 2px 5px #555, inset 0 0 0);
}
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UILabel - auto-size label to fit text?
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@Zeezer do you know why?
– FurloSK
Jul 15 '15 at 10:10
13
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Why does ConcurrentHashMap prevent null keys and values?
...eature, which wasn't available back then (Java 5). You could use Optionals now, indeed.
– Bruno
Sep 18 '18 at 15:02
@A...
Rails - Could not find a JavaScript runtime?
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I now recommend this as the route to take. See above.
– Michael Durrant
Dec 29 '11 at 2:13
1
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Allowed memory size of 33554432 bytes exhausted (tried to allocate 43148176 bytes) in php
...emory at any random time during code execution. This had the upside of me now having the world's most memory efficient code, created in the hunt for a memory leak.
– Kris Selbekk
Oct 15 '13 at 18:13
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