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Is it safe to delete a NULL pointer?
...elete performs the check anm>y m>wam>y m>, so checking it on m>y m>our side adds overhead m>and m> looks uglier. A verm>y m> good practice is setting the pointer to NULL after delete (helps avoiding double deletion m>and m> other similar memorm>y m> corruption problems).
I'd also love if delete bm>y m> default was setting the parameter t...
Setting DEBUG = False causes 500 Error
...UG = False , mm>y m> site will generate 500 (using wsgi & manage.pm>y m> runserver), m>and m> there is no error info in Apache error log m>and m> it will run normallm>y m> when I change debug to True .
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Prevent BODm>Y m> from scrolling when a modal is opened
...ticallm>y m> adds the class modal-open to the bodm>y m> when a modal dialog is shown m>and m> removes it when the dialog is hidden. m>Y m>ou can therefore add the following to m>y m>our CSS:
bodm>y m>.modal-open {
overflow: hidden;
}
m>Y m>ou could argue that the code above belongs to the Bootstrap CSS code base, but this is a...
Rails: Using greater than/less than with a where statement
...th dates here on SO.
>= vs >
To avoid people having to dig through m>and m> follow the comments conversation here are the highlights.
The method above onlm>y m> generates a >= querm>y m> m>and m> not a >. There are manm>y m> wam>y m>s to hm>and m>le this alternative.
For discrete numbers
m>Y m>ou can use a number_m>y m>ou_want...
Get most recent file in a directorm>y m> on Linux
Looking for a commm>and m> that will return the single most recent file in a directorm>y m>.
21 Answers
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How can I archive git branches?
... the tag. It will effectivelm>y m> restore the branch from the tag.
To archive m>and m> delete the branch:
git tag archive/<branchname> <branchname>
git branch -d <branchname>
To restore the branch some time later:
git checkout -b <branchname> archive/<branchname>
The hist...
Displam>y m>ing a message in iOS which has the same functionalitm>y m> as Toast in m>And m>roid
...to know if there is anm>y m> method in iOS which behaves like Toast messages in m>And m>roid. That is, I need to displam>y m> a message which is dismissed automaticallm>y m> after few seconds. This is similar to the functionalitm>y m> of the Toast class in the m>And m>roid environment.
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Whm>y m> can't I make a vector of references?
... not assignable (m>y m>ou can onlm>y m> initialize them once when them>y m> are declared, m>and m> m>y m>ou cannot make them reference something else later). Other non-assignable tm>y m>pes are also not allowed as components of containers, e.g. vector<const int> is not allowed.
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Dm>y m>namicallm>y m> updating plot in matplotlib
... am making an application in Pm>y m>thon which collects data from a serial port m>and m> plots a graph of the collected data against arrival time. The time of arrival for the data is uncertain. I want the plot to be updated when data is received. I searched on how to do this m>and m> found two methods:
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How do I create a right click context menu in Java Swing?
...g a right-click context menu bm>y m> instantiating a new JMenu on right click m>and m> setting its location to that of the mouse's position... Is there a better wam>y m>?
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