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Maximum length of the textual representation of an IPv6 address?
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On Linux, see constant INET6_ADDRSTRLEN (include <arpa/inet.h>, see man inet_ntop). On my system (header "in.h"):
#define INET6_ADDRSTRLEN 46
The last character is for terminating NULL, as I belive, so the max length is 45, as other answers.
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How to use ArgumentCaptor for stubbing?
...or.capture())).thenReturn(true);
assertThat(argumentCaptor.getValue(), equalTo(expected));
Because you can just use matcher during stubbing:
when(someObject.doSomething(eq(expected))).thenReturn(true);
But verification is a different story. If your test needs to ensure that this method was call...
How to stop creating .DS_Store on Mac? [closed]
...ly all .DS_Store from your mac.
find ~ -name ".DS_Store" -delete
or
find <your path> -name ".DS_Store" -delete
You should repeat procedure after each Mac major update.
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Rotating and spacing axis labels in ggplot2
...me(axis.text.x = element_text(angle = 90, vjust = 0.5, hjust=1))
By default, the axes are aligned at the center of the text, even when rotated. When you rotate +/- 90 degrees, you usually want it to be aligned at the edge instead:
The image above is from this blog post.
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Why a function checking if a string is empty always returns true? [closed]
...r cases due to PHP's automatic type conversion.
You should not use the built-in empty() function for this; see comments and the PHP type comparison tables.
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How can I remove the outline around hyperlinks images?
...e not removing :focus style. just adding style outline:none so. other default style will be there.
– Wasim Shaikh
May 3 '09 at 17:06
1
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Setup RSpec to test a gem (not Rails)
... Foobar do
pending "write it"
end
Optional: add a .rspec file for default options and put it in your gem's root path:
--color
--format documentation
Finally: run the specs:
$ rspec spec/foobar_spec.rb
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Docker - a way to give access to a host USB or serial device?
... --privileged mode:
docker run -t -i --device=/dev/ttyUSB0 ubuntu bash
Alternatively, assuming your USB device is available with drivers working, etc. on the host in /dev/bus/usb, you can mount this in the container using privileged mode and the volumes option. For example:
docker run -t -i --pr...
How to execute a java .class from the command line
...n your classpath, you would run into the problem I solve after you have dealt with that error.
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Get child node index
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With Typescript you get Type 'NodeListOf<ChildNode>' must have a '[Symbol.iterator]()' method that returns an iterator.ts(2488)
– ZenVentzi
Mar 18 '19 at 6:16
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