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What does the “yield” keyword do?
What is the use of the yield keyword in Python, and what does it do?
42 Answers
42
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How to un-submodule a Git submodule?
...odule code into the main repository, you just need to remove the submodule and re-add the files into the main repo:
git rm --cached submodule_path # delete reference to submodule HEAD (no trailing slash)
git rm .gitmodules # if you have more than one submodules,
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How to send only one UDP packet with netcat?
I want to send only one short value in a UDP packet, but running the command
5 Answers
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How to store standard error in a variable
... the error file thus:
ERROR=$(</tmp/Error)
The shell recognizes this and doesn't have to run 'cat' to get the data.
The bigger question is hard. I don't think there's an easy way to do it. You'd have to build the entire pipeline into the sub-shell, eventually sending its final standard outp...
What is the strict aliasing rule?
... ability to give aliasing warnings, sometimes giving us a friendly warning and sometimes not.)
To see why this behavior is undefined, we have to think about what the strict aliasing rule buys the compiler. Basically, with this rule, it doesn't have to think about inserting instructions to refresh th...
How does this program work?
...er. The default argument promotions are performed on trailing arguments.
and from 6.5.2.2/6,
If the expression that denotes the called function has a type that does not include a prototype, the integer promotions are performed on each argument, and arguments that have type float are promoted t...
p vs puts in Ruby
Is there any difference between p and puts in Ruby?
7 Answers
7
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Need to handle uncaught exception and send log file
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Here's the complete solution (almost: I omitted the UI layout and button handling) - derived from a lot of experimentation and various posts from others related to issues that came up along the way.
There are a number of things you need to do:
Handle uncaughtException in your Appli...
Find size of an array in Perl
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The first and third ways are the same: they evaluate an array in scalar context. I would consider this to be the standard way to get an array's size.
The second way actually returns the last index of the array, which is not (usually) ...
See line breaks and carriage returns in editor
...es anyone know of a text editor on Linux that allows me to see line breaks and carriage returns? Does Vim support this feature?
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