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Should I pass a shared_ptr by reference? [duplicate]
What are the best practices for passing a shared_ptr?
3 Answers
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Use curly braces to initialize a Set in Python
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When is finally run if you throw an exception from the catch block?
In the above block when is the finally block called? Before the throwing of e or is finally called and then catch?
7 Answer...
How can I save a screenshot directly to a file in Windows? [closed]
In Windows XP, one can press Alt-PrintScreen to copy an image of the active window, or Ctrl-PrintScreen to copy an image of the full desktop.
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What does the 'Z' mean in Unix timestamp '120314170138Z'?
I have an X.509 certificate which has the following 2 timestamps:
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Rails: How do I create a default value for attributes in Rails activerecord's model? [duplicate]
I want to create a default value for an attribute by defining it in ActiveRecord. By default everytime the record is created, I want to have a default value for attribute :status . I tried to do this:
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How to make layout with rounded corners..?
How can I make a layout with rounded corners? I want to apply rounded corners to my LinearLayout .
18 Answers
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How to pretty print XML from the command line?
...bxml2-utils
This utility comes with libxml2-utils:
echo '<root><foo a="b">lorem</foo><bar value="ipsum" /></root>' |
xmllint --format -
Perl's XML::Twig
This command comes with XML::Twig perl module, sometimes xml-twig-tools package:
echo '<root><foo ...
filter for complete cases in data.frame using dplyr (case-wise deletion)
Is it possible to filter a data.frame for complete cases using dplyr? complete.cases with a list of all variables works, of course. But that is a) verbose when there are a lot of variables and b) impossible when the variable names are not known (e.g. in a function that processes any data.frame).
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